Factory Reset my S6 with Odin No Network!

Factory Reset my S6 with Odin No Network! - AT&T Samsung Galaxy S6

I rooted with ping pong root, followed these guides to do my "OTA" updates:
http://forum.xda-developers.com/att-galaxy-s6/general/g920aucu2aof3-flashfire-update-t3156221
http://forum.xda-developers.com/att-galaxy-s6/general/g920aucu2aof3-to-of4-flashfire-update-t3181135
Then I used this file with Odin, to factory reset:
http://forum.xda-developers.com/att-galaxy-s6/general/odin-tar-files-sm-g920a-t3103835
Now it seems to have factory reset it but it says I have no IMEI, network unknown, etc....
I am suspecting that its something to do with those updates I did and flashing the Modem drivers, which maybe need to be downgraded now? or if i can update my software somehow with a legit version?
Any help is greatly appreciated.
Gavin

To my understanding, the downgrade to OE2 from OE3 or OF4 causes these issues with the imei and such.
Sent from my SAMSUNG-SM-G920A using Tapatalk

from what I have gathered... seems right.
so I am thinking now if I can upgrade to OE3, or OF4 in a legit way... then my modem will work again....
but If i use the upgrades mentioned on those 2 threads, those are pre rooted? so ill just be rooted again (but working modem)
correct?

My files are working fine. the problem is that you're trying to keep root and the modem you flashed is NOT compatible with the bootloader you current have.

Sunderwear, no problem with your files at all, I think the problem is with me.
I am trying to remove root.
How can I put a bootloader on my device that will be compatible with my modem?

I had the same issues. I ended up using Odin to go to OCE, then OE2 then I used PPR to root, and used FF to go to OF3 then OF4. Cause a BUNCH of problemt so I went to BBuy and had them force a flash of the full OF4.
You could always try doing the Odin OI2 files and see if that leaves you fully updated with everything working. You will lose root and will not be able to downgrade.

Well, depending on your desired outcome (rootless OF4, or 5.1.1), you'll have to do slightly different things, both will wipe your phone completely.
To move to rootless OF4, just download the Full OTA from the bottom of the first post at this link this is where things get different.
The next step is to reboot your device to recovery, not download mode (hold power home and vol up). You may see a updating android icon, but nothing should be happening yet.
You should now see the manual menu for the recovery, select the sideload update option
On your computer with ADB, sideload the OTA zip Do not unplug your phone
Your phone should reboot and you're now running OF4 while rootless
For 5.1.1
Flash the ODIN files with ODIN

Please note, you must be already rooted for this to work: I made the same mistake of upgrading to of4. Here's what I did, and my phone works just awesome and is still rooted with the Of4 base band.
1. Odin 3.10.6 OCE2
2. Reboot, at this point you'll have no carrier signal/data.
3. Ping pong root, install flash fire.
4. Install Rayman's ROM, Clean ROM, or Dennis ROM with flashfire (wipe first!).
5. Download the of4 root update here. forum.xda-developers.com/att-galaxy-s6/general/g920aucu2aof3-to-of4-flashfire-update-t3181135 ONTO YOUR PC. unrar. Flash via Odin the two files you unrar'd according to these instructions:
In Odin put boot.tar.md5 in the AP slot.
Put modem.tar.md5 in the CP slot.
Leave all other settings alone and click start.
Reboot, and you should be up and running with cell data and carrier signal.

dave812 said:
Please note, you must be already rooted for this to work: I made the same mistake of upgrading to of4. Here's what I did, and my phone works just awesome and is still rooted with the Of4 base band.
1. Odin 3.10.6 OCE2
2. Reboot, at this point you'll have no carrier signal/data.
3. Ping pong root, install flash fire.
4. Install Rayman's ROM, Clean ROM, or Dennis ROM with flashfire (wipe first!).
5. Download the of4 root update here. forum.xda-developers.com/att-galaxy-s6/general/g920aucu2aof3-to-of4-flashfire-update-t3181135 ONTO YOUR PC. unrar. Flash via Odin the two files you unrar'd according to these instructions:
In Odin put boot.tar.md5 in the AP slot.
Put modem.tar.md5 in the CP slot.
Leave all other settings alone and click start.
Reboot, and you should be up and running with cell data and carrier signal.
Click to expand...
Click to collapse
Worked like a charm thxs

Related

[GUIDE][HOW-TO] Install Any i537 AT&T Firmware

For instructions on how to root any i537 AT&T firmware, please read through the [GUIDE][HOW-TO] Root Any i537 AT&T Firmware thread.
For download links for i537 AT&T firmware as well as links to other information relevant to specific firmware, please read through the i537 AT&T Firmware Thread.
For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
Please select the firmware your phone is currently on to be directed to instructions for updating your specific firmware:
UCUAMF1(4.2.2)
UCUAMF2 (4.2.2)
UCUAMF3 (4.2.2)
UCUBMI2 (4.3)
UCUBML2 (4.3)
UCUCNC9 (4.4.2)
UCUCNE3 (4.4.2)
UCUCNH3 (4.4.2)
UCUCOC6 (5.0.1)
Download Mode
Download Mode is also known as Odin Mode on the XDA Wiki. The Galaxy S4 Active features the Android Download Mode which is a sub-system of your device that can be used to flash stock firmware files or any other type of customization file. Download Mode for Samsung devices allows you to install new OTA Updates by pushing them from your computer directly to your phone using only a data cable. Also, for your computer to work with the Download Mode you will need to have the Odin software present.
To enter Download Mode, make sure the phone is fully powered down, pull the battery if you’re not sure.
With the phone powered off, press and hold Volume Down + Home + Power.
Continue holding all three buttons until you see the Galaxy S4 Active Boot splash screen. Once the splash screen appears, released all three buttons.
You should now see a screen asking you if you want to enter Download Mode. Press Volume Up to continue or Volume Down to reboot.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Once you press Volume Up you should now be in Download Mode as shown in the screenshot below. If you are not, then power the phone down again and start over.
Recovery Mode
Android Recovery Mode is a hidden menu of your Samsung Galaxy S4 smartphone. It is a great tool that can be used to wipe data, factory reset, format system partition, install firmware and tons of other things that should allow you to improve your smartphone and its current OS. The Stock Recovery Mode is the first and original variant that comes packed with the smartphone after you purchase it. It works with stock and rooted phone.
To enter recovery mode, make sure the phone is fully powered down, pull the battery if you’re not sure.
With the phone powered off, press and hold Volume Up + Home + Power.
Continue holding all three buttons until you see the Galaxy S4 Active Boot splash screen. Once the splash screen appears, released all three buttons.
You should now be in Stock Recovery as shown in the screenshot below. If you are not, then power the phone down again and start over. [INSERT SCREENSHOT]
Odin
From AndroidCentral:
Odin is software that was first leaked back a couple years ago from Samsung. Samsung uses or used it to "flash" or "install" firmware/os/kernels/radio's onto the devices. Samsung still uses it or a form of it in certain releases as a Window's Upgrade Tool as its been known. Its still basically old Odin underneath a custom Window's UI skin. Odin is your friend, respect it. If used improperly it can brick a device since it has the ability to flash very vulnerable sections of your device.
Click to expand...
Click to collapse
IMPORTANT: Odin is a very powerful program that can make significant changes to your firmware and bootloader. When Odin is flashing files to your phone, do not unplug the usb cord, turn off your computer, or interrupt the process. You could permanently brick your phone making it completely unusable.
As posted by @O-T, you cannot have Kies installed in order for Odin to work properly. If you are having issues with Odin, make sure Kies is not installed.
Unfortunately there isn’t a central location for downloading Odin. The Odin Program can be downloaded from several locations on the internet, so be careful where you get it from an make sure you trust the site you’re downloading it from. There are also several different versions of Odin: v1.83, v1.85, v3.04, v3.06, v3.07, & v3.09. Most Samsung S4 Active users have had success using v3.07, which consequently comes bundled with some of the firmware downloads. If you are having trouble flashing files with v3.07, try using v3.09 or v3.04, users have reported having success when using other versions of Odin.

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUAMF1 (4.2.2) Released 2013-06-20 - LEAKED
MF1 to MF1 (Leaked: Released 2013-06-20)
Download the MF1 Odin package (Oneclick_I537UCUAMF1.7z) from the i537 Firmware Thread.
Extract Oneclick_I537UCUAMF1.7z using a program such as 7-zip.
Open Oneclick_I537UCUAMF1.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MF1 firmware, please visit the activeroot website.
Click to expand...
Click to collapse
MF1 to MF2 (Official: Released 2013-06-21)
Currently no MF2 files are available. It is not possible to return to stock MF2 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MF1 to MF3 (Official: Released 2013-06-21)
Currently no MF3 files are available. It is not possible to return to stock MF3 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MF1 to MI2 (Leaked: Released 2013-09-25)
Download the MI2 Odin package (OneClick_I537UCUBMI2.zip) from the [URL="http://forum.xda-developers.com/showthread.php?t=2629093"]i537 Firmware Thread[/URL].
Extract OneClick_I537UCUBMI2.zip using a program such as 7-zip.
Open OneClick_I537UCUBMI2.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MI2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF1 to ML2 (Official: Released 2014-01-07)
IMPORTANT: If you flash the ML2 bootloader you will not be able to downgrade to MF1 or MI2 firmware.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07.exe.
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF1 to NC9 (Official: Released 2014-04-16)
In order to update to NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF1 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF1 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
MF1 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUAMF2 (4.2.2) Released 2013-06-21 - OFFICIAL
MF2 to MF1 (Leaked: Released 2013-06-20)
Download the MF1 Odin package (Oneclick_I537UCUAMF1.7z) from the i537 Firmware Thread.
Extract Oneclick_I537UCUAMF1.7z using a program such as 7-zip.
Open Oneclick_I537UCUAMF1.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MF1 firmware, please visit the activeroot website.
Click to expand...
Click to collapse
MF2 to MF2 (Official: Released 2013-06-21)
Currently no MF2 files are available. It is not possible to return to stock MF2 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MF2 to MF3 (Official: Released 2013-06-21)
IMPORTANT: If you have rooted MF2 or modified the system files in any way, you cannot update to MF3. If you are on unrooted & unmodified MF2 and have an AT&T sim card inserted, you should be able to update using the phone’s internal updater by going to:
System Settings->More->About device->Software update
Download the MF3 OTA File from the link in the i537 Firmware Thread.
The file you downloaded should be named "MF3_update.zip". Within the zip file there is a file called "2400258.cfg", extract that file.
You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to MF3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from MF2.
Once it has completed you will be on stock, unrooted MF3. If you wish to root the MF3 firmware, please visit the activeroot website.
Click to expand...
Click to collapse
MF2 to MI2 (Leaked: Released 2013-09-25)
Download the MI2 Odin package (OneClick_I537UCUBMI2.zip) from the [URL="http://forum.xda-developers.com/showthread.php?t=2629093"]i537 Firmware Thread[/URL].
Extract OneClick_I537UCUBMI2.zip using a program such as 7-zip.
Open OneClick_I537UCUBMI2.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MI2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF2 to ML2 (Official: Released 2014-01-07)
IMPORTANT: If you flash the ML2 bootloader you will not be able to downgrade to MF1 or MI2 firmware.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07.exe.
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF2 to NC9 (Official: Released 2014-04-16)
In order to update to NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF2 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF2 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
MF2 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUAMF3 (4.2.2) Released 2013-06-21 - OFFICIAL
MF3 to MF1 (Leaked: Released 2013-06-20)
Download the MF1 Odin package (Oneclick_I537UCUAMF1.7z) from the i537 Firmware Thread.
Extract Oneclick_I537UCUAMF1.7z using a program such as 7-zip.
Open Oneclick_I537UCUAMF1.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MF1 firmware, please visit the activeroot website.
Click to expand...
Click to collapse
MF3 to MF2 (Official: Released 2013-06-21)
Currently no MF2 files are available. It is not possible to return to stock MF2 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MF3 to MF3 (Official: Released 2013-06-21)
Currently no MF3 files are available. It is not possible to return to stock MF3 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MF3 to MI2 (Leaked: Released 2013-09-25)
Download the MI2 Odin package (OneClick_I537UCUBMI2.zip) from the [URL="http://forum.xda-developers.com/showthread.php?t=2629093"]i537 Firmware Thread[/URL].
Extract OneClick_I537UCUBMI2.zip using a program such as 7-zip.
Open OneClick_I537UCUBMI2.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MI2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF3 to ML2 (Official: Released 2014-01-07)
IMPORTANT: If you flash the ML2 bootloader you will not be able to downgrade to MF1 or MI2 firmware.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07.exe.
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF3 to NC9 (Official: Released 2014-04-16)
In order to update to NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF3 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MF3 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
MF3 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUBMI2 (4.3) Released 2013-09-25 - LEAKED
MI2 to MF1 (Leaked: Released 2013-06-20)
Download the MF1 Odin package (Oneclick_I537UCUAMF1.7z) from the i537 Firmware Thread.
Extract Oneclick_I537UCUAMF1.7z using a program such as 7-zip.
Open Oneclick_I537UCUAMF1.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MF1 firmware, please visit the activeroot website.
Click to expand...
Click to collapse
MI2 to MF2 (Official: Released 2013-06-21)
Currently no MF2 files are available. It is not possible to return to stock MF2 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MI2 to MF3 (Official: Released 2013-06-21)
Currently no MF3 files are available. It is not possible to return to stock MF3 regardless of what firmware you are currently on.
Click to expand...
Click to collapse
MI2 to MI2 (Leaked: Released 2013-09-25)
Download the MI2 Odin package (OneClick_I537UCUBMI2.zip) from the [URL="http://forum.xda-developers.com/showthread.php?t=2629093"]i537 Firmware Thread[/URL].
Extract OneClick_I537UCUBMI2.zip using a program such as 7-zip.
Open OneClick_I537UCUBMI2.exe it should look like this:
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the MI2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MI2 to ML2 (Official: Released 2014-01-07)
IMPORTANT: If you flash the ML2 bootloader you will not be able to downgrade to MF1 or MI2 firmware.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07.exe.
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MI2 to NC9 (Official: Released 2014-04-16)
In order to update to NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MI2 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
MI2 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
MI2 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUBML2 (4.3) Released 2014-01-07 - OFFICIAL
ML2 to MF1 (Leaked: Released 2013-06-20)
If you already have the ML2 bootloader (if your phone is working properly on ML2 firmware then odds are you already have the ML2 bootloader), there is no way to downgrade to MF1, MF2, MF3 or MI2. If do not have the ML2 bootloader then follow any of the previous instructions for flashing the desired firmware.
Click to expand...
Click to collapse
ML2 to MF2 (Official: Released 2013-06-21)
If you already have the ML2 bootloader (if your phone is working properly on ML2 firmware then odds are you already have the ML2 bootloader), there is no way to downgrade to MF1, MF2, MF3 or MI2. If do not have the ML2 bootloader then follow any of the previous instructions for flashing the desired firmware.
Click to expand...
Click to collapse
ML2 to MF3 (Official: Released 2013-06-21)
If you already have the ML2 bootloader (if your phone is working properly on ML2 firmware then odds are you already have the ML2 bootloader), there is no way to downgrade to MF1, MF2, MF3 or MI2. If do not have the ML2 bootloader then follow any of the previous instructions for flashing the desired firmware.
Click to expand...
Click to collapse
ML2 to MI2 (Leaked: Released 2013-09-25)
If you already have the ML2 bootloader (if your phone is working properly on ML2 firmware then odds are you already have the ML2 bootloader), there is no way to downgrade to MF1, MF2, MF3 or MI2. If do not have the ML2 bootloader then follow any of the previous instructions for flashing the desired firmware.
Click to expand...
Click to collapse
ML2 to ML2 (Official: Released 2014-01-07)
IMPORTANT: If you flash the ML2 bootloader you will not be able to downgrade to MF1 or MI2 firmware.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07.exe.
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
ML2 to NC9 (Official: Released 2014-04-16)
In order to update to NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
ML2 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
ML2 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
ML2 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUCNC9 (4.4.2) Released 2014-04-16 - OFFICIAL
NC9 to MF1 (Leaked: Released 2013-06-20)
If you already on NC9 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NC9 to MF2 (Official: Released 2013-06-21)
If you already on NC9 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NC9 to MF3 (Official: Released 2013-06-21)
If you already on NC9 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NC9 to MI2 (Leaked: Released 2013-09-25)
If you already on NC9 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NC9 to ML2 (Official: Released 2014-01-07)
IMPORTANT: There have been reported bugs with wireless connectivity and sound on ML2 when downgrading from NC9.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07exe.
Once opened, you need to load the files for the PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked. IMPORTANT: Do not load the Bootloader file. If you load the Bootloader file, the flash will fail. You will not brick your phone, but Odin will throw up an error and the flash will fail.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NC9 to NC9 (Official: Released 2014-04-16)
In order to return to stock, unrooted NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NC9 to NE3 (Official: Released 2014-06-06)
There are 2 methods for updating to NE3 depending on if you have rooted NC9 or modified NC9 system files. If the instructions for updating from Unrooted and Unmodified NC9 don’t work, then you can always use the instructions for Rooted or Modified NC9.
Unrooted and Unmodified NC9
Download the NC9 to NE3 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NE3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NC9.
Once it has completed you will be on stock, unrooted NE3. If you wish to root the NE3 firmware, please visit the towelroot website.
Rooted or Modified NC9
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NC9 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
NC9 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUCNE3 (4.4.2) Released 2014-06-06 - OFFICIAL
NE3 to MF1 (Leaked: Released 2013-06-20)
If you already on NE3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NE3 to MF2 (Official: Released 2013-06-21)
If you already on NE3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NE3 to MF3 (Official: Released 2013-06-21)
If you already on NE3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NE3 to MI2 (Leaked: Released 2013-09-25)
If you already on NE3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NE3 to ML2 (Official: Released 2014-01-07)
IMPORTANT: There have been reported bugs with wireless connectivity and sound on ML2 when downgrading from NE3.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07exe.
Once opened, you need to load the files for the PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked. IMPORTANT: Do not load the Bootloader file. If you load the Bootloader file, the flash will fail. You will not brick your phone, but Odin will throw up an error and the flash will fail.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NE3 to NC9 (Official: Released 2014-04-16)
In order to return to stock, unrooted NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NE3 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the Bootloader, PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NE3 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
NE3 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUCNH3 (4.4.2) Released 2014-09-25 - OFFICIAL
NH3 to MF1 (Leaked: Released 2013-06-20)
If you already on NH3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NH3 to MF2 (Official: Released 2013-06-21)
If you already on NH3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NH3 to MF3 (Official: Released 2013-06-21)
If you already on NH3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NH3 to MI2 (Leaked: Released 2013-09-25)
If you already on NH3 firmware, there is no way to downgrade to MF1, MF2, MF3 or MI2.
Click to expand...
Click to collapse
NH3 to ML2 (Official: Released 2014-01-07)
IMPORTANT: There have been reported bugs with wireless connectivity and sound on ML2 when downgrading from NH3.
Download the ML2 Odin package (I537UCUBML2.7z) from the i537 Firmware Thread.
Extract I537UCUBML2.7z using a program such as 7-zip.
Once extracted, open the Complete I537 4.3 Odin Package Folder that has been created.
Within that folder you should see 2 folders. Open Odin3_v3.07 and run Odin3_v3.07exe.
Once opened, you need to load the files for the PDA, Phone, and CSC. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked. IMPORTANT: Do not load the Bootloader file. If you load the Bootloader file, the flash will fail. You will not brick your phone, but Odin will throw up an error and the flash will fail.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the ML2 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NH3 to NC9 (Official: Released 2014-04-16)
In order to return to stock, unrooted NC9 firmware, you must first be on stock, unrooted/unmodified ML2 firmware. For instructions on how to update to ML2, please see above. IMPORTANT: If you have rooted ML2 or modified ML2 system files in any way you cannot update to NC9 without wiping and reflashing the ML2 firmware. If you have rooted ML2 you cannot simply unroot, you must wipe and reflash the stock ML2 firmware.
Once you are on unmodified ML2 firmware, download the NC9 OTA File from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NC9 will be done without a computer so the file must be on the phone itself.
Turn off your phne and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from ML2.
Once it has completed you will be on stock, unrooted NC9. If you wish to root the NC9 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NH3 to NE3 (Official: Released 2014-06-06)
Download the NE3 Full Odin Package from the i537 Firmware Thread.
Extract SGH-I537UCUCNE3_v4.4.2_ATT_ALL.zip using a program such as 7-zip.
Download the Windows program Odin. For more information about what Odin is and where to get it, please read the Odin section in the first post.
Open the version of Odin that you downloaded (preferably Odin v3.07)
Once opened, you need to load the files for the PDA, Phone, and CSC. IMPORTANT:Do not load or flash the bootloader file, Odin will fail to flash anything. The required files are located in the Odin Files folder. It should look exactly like the screenshot below with the appropriate checkboxes checked.
Next put your phone in download mode. For more information on how to put your phone in download mode, please read the download mode section in the first post.
Once your phone is in Download Mode, connect it to your computer using the cable that came with your phone. IMPORTANT: Odin and Samsung phones are very finicky when flashing firmware, the only usb cable that is guaranteed to work is the cable that came with your phone. You may use other usb cables, but Odin may not detect your phone. If Odin does not detect your phone try connecting to a different usb port or a different computer.
If your phone has connected properly it should show up properly in the Odin window similar to the following picture:
Once Odin has detected your phone, hit Start. It will take a long time to flash the package to your phone and will completely wipe your phone. DO NOT DISCONNECT THE CABLE OR TURN OFF YOUR COMPUTER. If the process is abruptly interrupted you risk permanently bricking your phone, so be careful.
When the program has finished it is safe to disconnect everything and reboot your phone. Your phone will be completely stock, unrooted and you will have to setup your phone from scratch again. If you wish to root the NE3 firmware, please visit the towelroot website.
Click to expand...
Click to collapse
NH3 to NH3 (Official: Released 2014-09-25)
IMPORTANT: If you want to update your phone to stock NH3 firmware you must first be on stock, unrooted NE3 firmware. Please follow the instructions above to flash stock, unrooted NE3 firmware and then follow the instructions to update to NH3 below.
Assuming you're on stock, unrooted NE3, download the Official OTA from the i537 Firmware Thread.
The file you download should be named 2400258.cfg. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to NH3 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NE3.
Once it has completed you will be on stock, unrooted NH3.
To root NH3, read through the discussion in this post.
Click to expand...
Click to collapse
NH3 to OC6 (Official: Released 2015-04-21)
IMPORTANT: If you want to update your phone to stock OC6 firmware you must first be on stock, unrooted NH3 firmware. Please follow the instructions above to flash stock, unrooted NH3 firmware and then follow the instructions to update to OC6 below.
IMPORTANT: If you want to have root on OC6 firmware you must start with rooted firmware. Once you've confirmed that you are on rooted firmware already, follow the great guide @muniz_ri put together for retaining root when updating to OC6 firmware. The procedure below will put you on stock, unrooted OC6 firmware and the only way to root this firmware is to start by flashing the NE3 Odin package which will completely wipe your phone.
Assuming you're on stock, unrooted NH3, download the Official NH3 to OC6 OTA from the i537 Firmware Thread.
The file you download should be named NH3toLollipop.zip. Inside this zip file should be a file named 2400258.cfg, extract it. You will need to rename this from “2400258.cfg” to “update.zip” This is an important step because the file must be named “update.zip” in order for it to be flashed through stock recovery.
Place the update.zip file on your phone’s internal storage. Updating the phone to OC6 will be done without a computer so the file must be on the phone itself.
Turn off your phone and reboot into the phone’s stock recovery. For more information on how to enter the phone’s stock recovery, please read the recovery mode section in the first post.
Once in stock recovery use the volume buttons to scroll to “apply update from external storage” and press the power button to select.
Select the update.zip file that you put on your phone to begin installing the update. This process will not wipe your phone and should save all your settings and data from NH3.
Once it has completed you will be on stock, unrooted OC6.
Click to expand...
Click to collapse

For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
IMPORTANT: If your phone has 4.3 or 4.4.2 firmware on it, then there is no way to downgrade to 4.2.2 firmware. If your phone has 4.4.2 firmware on it, it is still possible to downgrade to 4.3, but many users have reported bugs after downgrading.
I537UCUCOC6 (5.0.1) Released 2015-04-21 - OFFICIAL
This post will be updated with the proper procedure for downgrading from OC6 firmware to other firmware once time permits. If you're looking for methods to update to the OC6 firmware, please see the other posts above.

How do I know which firmware I'm using. I recently just got this Samsung S4 Active with root but I really want to upgrade to the 4.4.2 update. I do have recovery mode working finally. Just need a pointer on which one I should download.

Menu, settings, more, then about phone. Scroll through to see your phone's info.
Sent from my SAMSUNG-SGH-I357 using Tapatalk 2

Devo7v said:
For any update process, make sure to back up anything you don’t want to lose to an external SD card or source. Many of the updates will completely wipe the phone taking your back to the way the phone was when it came out of the box. Once everything has been backed up, remove the SD card and SIM card from your phone and follow the steps below.
Click to expand...
Click to collapse
Remove the SIM? Never did that before- last update was from update.zip which was actually ON the SD card. Is this just an extra precaution for the fragile 'secure element' cards?

APeter001 said:
Remove the SIM? Never did that before- last update was from update.zip which was actually ON the SD card. Is this just an extra precaution for the fragile 'secure element' cards?
Click to expand...
Click to collapse
Exactly. Odds are that there won't be any problems, but when using Odin (a very powerful program) it never hurts to be overly cautious. I'm sure there are people out there that say nothing bad could possibly happen with the SIM card in, but I'd rather not take the chance. Ultimately it is up to the user, these are just my recommendations.

I can't seem to find the answer anywhere... Are any roms able to run on the ne3 firmware, or should I downgrade? Thanks in advance!
Sent from my SAMSUNG-SGH-I537 using XDA Free mobile app

angelle97 said:
I can't seem to find the answer anywhere... Are any roms able to run on the ne3 firmware, or should I downgrade? Thanks in advance!
Sent from my SAMSUNG-SGH-I537 using XDA Free mobile app
Click to expand...
Click to collapse
This question doesn't belong in this thread, but yes there are plenty of ROMs that will run on SafeStrap with NE3 firmware. Please read through this thread, it will have the information you are looking for.

Thanks
Sent from my SAMSUNG-SGH-I537 using Tapatalk

Added instructions to OP for NH3 firmware released on September 25, 2014.

Odin will not see My S4 Active. Yes I have all the drivers, tried 3 computers and 10 cables. Odin and the computer see the phone just fine when NOT in download mode. Any help?

rekamyenom said:
Odin will not see My S4 Active. Yes I have all the drivers, tried 3 computers and 10 cables. Odin and the computer see the phone just fine when NOT in download mode. Any help?
Click to expand...
Click to collapse
Uninstall Kies.

How I downgraded my baseband/fixed 4.4.2 lag

Background: I had updated to OA1 4.4.4 on s5 900A. I had some issues, so I decided to downgrade as described in the upgrade thread here: http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120.
I would downgrade by flashing in odin the G900A_Downgrade_to_NCE.tar, as well as the G900A_ND3_Stock_Kernel, rerooting with towelroot, installing safestrap, and flashing one of the many 4.4.2 roms.
However, upon boot all of the 4.4.2 roms would be laggy, I would sometimes get a green/pixilated effect on the lockscreen when unlocking, and battery life would be sub par. I came across this app on play store:https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en , and even though I had downgraded the kernel, the bootloader read as OA1, even after flashing in Odin the ND3 stock kernel.
I believed that was causing the issues I was having, and was under the impression that the bootloader could not be downgraded. In a fit of frustration I did the following, and fixed the problem!
Solution:
This is not a step by step, but a rough approximation of what I did, if you need more detail, just ask.
1. I downloaded and put on my SD card G900A_NCE_to_NG3_OTA.zip https://www.androidfilehost.com/?fid=95916177934525665
2. In odin 3.09 I flashed G900A_Downgrade_to_NCE.tar https://www.androidfilehost.com/?fid=23622183712464416,
3. Also in the AP slot I flashed G900A_ND3_Stock_Kernel https://www.androidfilehost.com/?fid=23622183712464356
3. My phone was unrooted at this time. I let it boot up, downloaded the Phone INFO ★Samsung★ to the phone from the playstore, opened and my bootloader remained OA1. The camera was normal, and the boot was slow, so I was where I was many times before.
4. I shut down the phone, I rebooted holding volume up, power and start until I got to the standard, built in samsung recovery.
5. I located my download of G900A_NCE_to_NG3_OTA.zip, and flashed it via the samsung recovery. It took about 5 minutes.
6. The phone rebooted, and the phone info app said I had and NG3 baseband! It had downgraded! However, towel root was not compatible.
7. I flashed in odin G900A_ND3_Stock_Kernel again. Now towelroot rooted the phone. I installed busybox and superuser from the playstore, then safestrap again.
Now I can flash any of the 4.4.2 roms, none of the slowbooting, stuttering lockscreen or battery issues seem to be present, and Phone INFO ★Samsung★ has my baseband and bootloader as NG3.
All credit goes to muniz_ri, these are all his tools! I just stumbled across this method and thought others might benefit.

I can confirm this.
I was on OA1 after flashing OA1 OTA zip from recovery.
Later, I downgraded by flashing G900A_Downgrade_to_NCE.tar. Bootloader after this was OA1.
Flashed G900A_NCE_to_NG3_OTA.zip from recovery. Bootloader and baseband changed to NG3.
Bootloader and Baseband version was verified using 'phone info' app from play store.

yoonus said:
I can confirm this.
I was on OA1 after flashing OA1 OTA zip from recovery.
Later, I downgraded by flashing G900A_Downgrade_to_NCE.tar. Bootloader after this was OA1.
Flashed G900A_NCE_to_NG3_OTA.zip from recovery. Bootloader and baseband changed to NG3.
Bootloader and Baseband version was verified using 'phone info' app from play store.
Click to expand...
Click to collapse
does that ota have to be used if your on stock nce? im running alliance rom right now... also can it be flashed in SS?

iamthedj said:
does that ota have to be used if your on stock nce? im running alliance rom right now... also can it be flashed in SS?
Click to expand...
Click to collapse
I think it can be flashed only from stock ROM. This is stock OTA.

yoonus said:
I think it can be flashed only from stock ROM. This is stock OTA.
Click to expand...
Click to collapse
forgot i had a stock nce rooted backup so just started from there flashed the ota in sammy recovery and bam back to the old bootloader thanks a bunch man much appreciated

I think I will give this a try in the next few days. I'm on the rooted 5.0 by muniz_ri and I love Lollipop but I miss being able to flash custom roms.

MetalHead66 said:
I think I will give this a try in the next few days. I'm on the rooted 5.0 by muniz_ri and I love Lollipop but I miss being able to flash custom roms.
Click to expand...
Click to collapse
Likewise, just did it, I found with me, the OTA zip file would not install with the ND3 kernel installed. So I did the original odin downgrade to NCE, booted, then the OTA zip file, booted, Then the ND3 kernel Tar file in odin. Worked .Good luck:good:

so the nce to ng3 downgrade goes in the ap or BL?

Vortex_User said:
so the nce to ng3 downgrade goes in the ap or BL?
Click to expand...
Click to collapse
NCE. to NG3. OTA zip is done in original recovery by pressing power + volume up + home key. Then install update from Sd external.

i fixed my phone with this!
thanks!!!!!!!

maxirn05 said:
i fixed my phone with this!
thanks!!!!!!!
Click to expand...
Click to collapse
+1
was on Muniz 5.0, downgraded to xtreme dynamic kitkat. Still had oa1 bootloader, and was laggin really bad on boot.
Flashed this in stock recovery (wipes data part ) and reloaded my apps.
All seems to be well, without the need to go back to stock in between.

Thank you - this totally worked for me and got rid of the lag in my 4.4.2 ROM (XDK) as I had taken the upgrade to 4.4.4 way back when!

Hi,
do you do step 2 & 3 at the same time?
which field in Odin do you put the .tar file?
Thanks,
h
dave812 said:
Background: I had updated to OA1 4.4.4 on s5 900A. I had some issues, so I decided to downgrade as described in the upgrade thread here: http://forum.xda-developers.com/att...to-root-g900aucu2aoa1-4-4-4-2-3-2015-t3021120.
I would downgrade by flashing in odin the G900A_Downgrade_to_NCE.tar, as well as the G900A_ND3_Stock_Kernel, rerooting with towelroot, installing safestrap, and flashing one of the many 4.4.2 roms.
However, upon boot all of the 4.4.2 roms would be laggy, I would sometimes get a green/pixilated effect on the lockscreen when unlocking, and battery life would be sub par. I came across this app on play store:https://play.google.com/store/apps/details?id=org.vndnguyen.phoneinfo&hl=en , and even though I had downgraded the kernel, the bootloader read as OA1, even after flashing in Odin the ND3 stock kernel.
I believed that was causing the issues I was having, and was under the impression that the bootloader could not be downgraded. In a fit of frustration I did the following, and fixed the problem!
Solution:
This is not a step by step, but a rough approximation of what I did, if you need more detail, just ask.
1. I downloaded and put on my SD card G900A_NCE_to_NG3_OTA.zip https://www.androidfilehost.com/?fid=95916177934525665
2. In odin 3.09 I flashed G900A_Downgrade_to_NCE.tar https://www.androidfilehost.com/?fid=23622183712464416,
3. Also in the AP slot I flashed G900A_ND3_Stock_Kernel https://www.androidfilehost.com/?fid=23622183712464356
3. My phone was unrooted at this time. I let it boot up, downloaded the Phone INFO ★Samsung★ to the phone from the playstore, opened and my bootloader remained OA1. The camera was normal, and the boot was slow, so I was where I was many times before.
4. I shut down the phone, I rebooted holding volume up, power and start until I got to the standard, built in samsung recovery.
5. I located my download of G900A_NCE_to_NG3_OTA.zip, and flashed it via the samsung recovery. It took about 5 minutes.
6. The phone rebooted, and the phone info app said I had and NG3 baseband! It had downgraded! However, towel root was not compatible.
7. I flashed in odin G900A_ND3_Stock_Kernel again. Now towelroot rooted the phone. I installed busybox and superuser from the playstore, then safestrap again.
Now I can flash any of the 4.4.2 roms, none of the slowbooting, stuttering lockscreen or battery issues seem to be present, and Phone INFO ★Samsung★ has my baseband and bootloader as NG3.
All credit goes to muniz_ri, these are all his tools! I just stumbled across this method and thought others might benefit.
Click to expand...
Click to collapse

hegel22 said:
Hi,
do you do step 2 & 3 at the same time?
which field in Odin do you put the .tar file?
Thanks,
h
Click to expand...
Click to collapse
Do step 2 and 3 separate. Use the ap slot for both

dirtydodge said:
Do step 2 and 3 separate. Use the ap slot for both
Click to expand...
Click to collapse
After i update G900A_NCE_to_NG3_OTA from sd card while rebooting i get samsung account locked. Each time i enter the correct samsung account and password it displays processing failed. What should i do??? please help

Praveenshrestha1991 said:
After i update G900A_NCE_to_NG3_OTA from sd card while rebooting i get samsung account locked. Each time i enter the correct samsung account and password it displays processing failed. What should i do??? please help
Click to expand...
Click to collapse
I'm not sure. Sounds like the reactivation was locked before you downgraded. I'm not sure how to fix that.

Odin

I was running stock rooted Lollipop ....Wanted to try out a new rom so when I tried to reboot to TWRP nothing happened...So I decided to just reflash TWRP via Odin and it failed...tried to reflash cf auto root via Odin and failed. I was able to flash the NK4 firmware via Odin. And same fail message came up for Cf Auto Root and TWRP...Went to check recovery and I'm back to stock. Tried doing a factory reset in stock recovery and failed...preload destination does not exist! Fudge bananas! So I flashed the firmware (OC6). It's working fine but I can not use Cf Auto root nor flash TWRP via Odin....Any ideas what's going on?

re: flashing issues
jutaejrtouch said:
I was running stock rooted Lollipop ....Wanted to try out a new rom so when I tried to reboot to TWRP nothing happened...So I decided to just reflash TWRP via Odin and it failed...tried to reflash cf auto root via Odin and failed. I was able to flash the NK4 firmware via Odin. And same fail message came up for Cf Auto Root and TWRP...Went to check recovery and I'm back to stock. Tried doing a factory reset in stock recovery and failed...preload destination does not exist! Fudge bananas! So I flashed the firmware (OC6). It's working fine but I can not use Cf Auto root nor flash TWRP via Odin....Any ideas what's going on?
Click to expand...
Click to collapse
Perhaps you don't have the latest versions of cf-autroot. odin and twrp recovery.
The latest versions are twrp v2.8.6.0, odin v3.10.0 and cf-autoroot.
Both twrp and cf-autoroot are specifically for the N910T Tmobile Note 4.
Here is a direct download link to the latest versions:
https://www.dropbox.com/s/i25yjb1o97o96nb/CF-Autoroot & TWRP v2.8.6.0 and ODIN3 v3.10.0.zip?dl=0
p.s. Be sure to use the original Note 4 charging cable.
Good luck!

Misterjunky said:
Perhaps you don't have the latest versions of cf-autroot. odin and twrp recovery.
The latest versions are twrp v2.8.6.0, odin v3.10.0 and cf-autoroot.
Both twrp and cf-autoroot are specifically for the N910T Tmobile Note 4.
Here is a direct download link to the latest versions:
https://www.dropbox.com/s/i25yjb1o97o96nb/CF-Autoroot & TWRP v2.8.6.0 and ODIN3 v3.10.0.zip?dl=0
p.s. Be sure to use the original Note 4 charging cable.
Good luck!
Click to expand...
Click to collapse
I'm using the same files as I did Monday when I initially went to Lollipop on Monday. I was on stock rooted Lollipop.

I can flash firmwares without errors, it's cf auto root and twrp that fail.

re: cf autoroot and twrp issues
jutaejrtouch said:
I can flash firmwares without errors, it's cf auto root and twrp that fail.
Click to expand...
Click to collapse
I just looked at your two screen shots and noticed that your activation
lock is ON, so go into settings>security and turn it OFF.
Then power off the phone and go into download
mode and start odin flashing cf-autoroot and twrp.
Good luck!

Your lock ? is defintley your issue. I still using twrp 2.8.4 with no issues and odin 3.9.
BAD ASS NOTE 4

Misterjunky said:
I just looked at your two screen shots and noticed that your activation
lock is ON, so go into settings>security and turn it OFF.
Then power off the phone and go into download
mode and start odin flashing cf-autoroot and twrp.
Good luck!
Click to expand...
Click to collapse
Geez that sounds right. Forgot I turned that on when installed Lollipop. Can't wait till I get home to change that back. Thanks my friend!

Thanks
Home from work and I ran to my computer! That''s exactly what was wrong. I'm rooted again and flashed TWRP with no issues. Thanks again guys!

[GUIDE][G870A] Downgrade S5 Active MM6.0->LP5.0

DISCLAIMERI am not responsible for any damage done to your device. The following guide is to be used at your discretion, you are taking the risk of rendering your phone unusable. It is also advised to Factory Reset while following this guide, so backup, backup, backup! Only attempt if you are confident in doing so!
Marshmallow to LollipopA recent development has allowed us to root the G900A/G870A on 5.1.1., which you can find here. There is a guide for G900A users to downgrade from 6.0 to 5.0, but I wanted to provide a guide for Active users to do the same. Once you have downgraded to 5.0, you can root using this new method, or update to 5.1.1 and root. I was regretting my upgrade to MM, it wasn't worth the cost of root and custom roms, so this was exactly what I needed to love this phone again. Now, on to the guide.
Step 1
Download the necessary files using the following links:
G870A OF3 ODIN TARBALL
ODIN 3.11
Step 2
I will make the assumption you have the Samsung USB Drivers installed and can see your phone in File Explorer. Extract both of the downloaded files wherever you'd like, you'll have an Odin folder, and four files from the tarball: BL, AP, CP, and CSC files. Put them in their own folder, just to avoid any mistakes with flashing. Run Odin as Admin and you'll see 4 slots, which you'll fill with the 4 tar.md5 files you just extracted. You'll load the tar files into their appropriate slots, IE AP_* into the AP slot, and you will encounter delays as Odin reads and verifies the files.
Step 3
As a precaution, it's recommended to have your phone charged to at least 75%. Now to restart the phone into Download Mode, you do so by powering off the phone, then power on the phone holding the Volume Down + Home keys. Once in download mode, hook the phone up to your USB cable attached to your PC. (Most failed ODIN flashes are due to USB cables, you may need to try a few)
Step 4
Go back to Odin and you should see your phone show up in COM box. Once you've verified that the phone is showing up, verify that you have all of the tar files loaded into the appropriate slots, and push Start. You'll see the progress as each file is flashed, look for any error messages. Once everything is flashed, your phone should reboot and you'll see a green pass. At this point, I recommend doing a battery pull or hold down Volume Down + Home + Power keys until the phone reboots. Once it shuts off, immediately hold down Volume Up + Home to boot into recovery. Now just do a quick factory reset, wipe the cache, and reboot. You should now be back to OF3, you can verify this in recovery, or by going to About Device under Settings, under baseband it should read G870AUCU2BOF3.
Step 5
At this point, you can use the previously mentioned guide to obtain root. If interested, once you have root you can head over to the Unofficial List of Roms and use FlashFire to flash a shiny new rom.
I'd just like to thank @AptLogic for his contributions, as well as @719c6 for finding the OF3 tarballs.

Thanks a lot! Just wanted to report I downgraded successfully and will try to work on rooting next. Thanks!

Hello,
same here, downgraded via ODIN to 5.0.... I'd really like to update, though but couldnt find the data file yet -
coluld anyone help me with a link to a suitable update file from OF3 to OI5?
Thanks
plx
EDIT: oops, sorry, wasnt OI5 but OJ3 - found and updated...

IJoxer said:
DISCLAIMERI am not responsible for any damage done to your device. The following guide is to be used at your discretion, you are taking the risk of rendering your phone unusable. It is also advised to Factory Reset while following this guide, so backup, backup, backup! Only attempt if you are confident in doing so!
Marshmallow to LollipopA recent development has allowed us to root the G900A/G870A on 5.1.1., which you can find here. There is a guide for G900A users to downgrade from 6.0 to 5.0, but I wanted to provide a guide for Active users to do the same. Once you have downgraded to 5.0, you can root using this new method, or update to 5.1.1 and root. I was regretting my upgrade to MM, it wasn't worth the cost of root and custom roms, so this was exactly what I needed to love this phone again. Now, on to the guide.
Step 1
Download the necessary files using the following links:
G870A OF3 ODIN TARBALL
ODIN 3.11
Step 2
I will make the assumption you have the Samsung USB Drivers installed and can see your phone in File Explorer. Extract both of the downloaded files wherever you'd like, you'll have an Odin folder, and four files from the tarball: BL, AP, CP, and CSC files. Put them in their own folder, just to avoid any mistakes with flashing. Run Odin as Admin and you'll see 4 slots, which you'll fill with the 4 tar.md5 files you just extracted. You'll load the tar files into their appropriate slots, IE AP_* into the AP slot, and you will encounter delays as Odin reads and verifies the files.
Step 3
As a precaution, it's recommended to have your phone charged to at least 75%. Now to restart the phone into Download Mode, you do so by powering off the phone, then power on the phone holding the Volume Down + Home keys. Once in download mode, hook the phone up to your USB cable attached to your PC. (Most failed ODIN flashes are due to USB cables, you may need to try a few)
Step 4
Go back to Odin and you should see your phone show up in COM box. Once you've verified that the phone is showing up, verify that you have all of the tar files loaded into the appropriate slots, and push Start. You'll see the progress as each file is flashed, look for any error messages. Once everything is flashed, your phone should reboot and you'll see a green pass. At this point, I recommend doing a battery pull or hold down Volume Down + Home + Power keys until the phone reboots. Once it shuts off, immediately hold down Volume Up + Home to boot into recovery. Now just do a quick factory reset, wipe the cache, and reboot. You should now be back to OF3, you can verify this in recovery, or by going to About Device under Settings, under baseband it should read G870AUCU2BOF3.
Step 5
At this point, you can use the previously mentioned guide to obtain root. If interested, once you have root you can head over to the Unofficial List of Roms and use FlashFire to flash a shiny new rom.
I'd just like to thank @AptLogic for his contributions, as well as @719c6 for finding the OF3 tarballs.
Click to expand...
Click to collapse
you can help me downgrade s5 active MM 6.0.1 to 4.4 (NE4) with ODIN 4 file (BL, AP, CP, CSC)
tks

anhminhvip said:
you can help me downgrade s5 active MM 6.0.1 to 4.4 (NE4) with ODIN 4 file (BL, AP, CP, CSC)
tks
Click to expand...
Click to collapse
The lowest you can downgrade to is OF3, which you can do by following the guide. The OF3 firmware uses the same bootloader as MM, so we were able to downgrade, NE4 uses an older bootloader, and we are not able to downgrade bootloaders.
Sorry.

How do install superSU on OF3?

anhminhvip said:
How do install superSU on OF3?
Click to expand...
Click to collapse
It was linked in the OP, but it's in this thread. Apparently, they're having an issue getting it to root now, so if you get it to root, report feedback on the thread and make sure to keep it. I was lucky enough to downgrade, root, and flash my favorite rom, Xtrestolite. Finally have my phone running nice and smooth again, I won't be jeopardizing my root on this phone anymore.
Good luck!

I have install sussces kingroot but i replace superSU then it not complete

anhminhvip said:
I have install sussces kingroot but i replace superSU then it not complete
Click to expand...
Click to collapse
Are you using Supersume?
That app (it is paid) automatically uninstalls kingroot and replaces it with supersu, and as far as I know, you have to use it for everything to work properly.
Good luck!

IJoxer said:
Are you using Supersume?
That app (it is paid) automatically uninstalls kingroot and replaces it with supersu, and as far as I know, you have to use it for everything to work properly.
Good luck!
Click to expand...
Click to collapse
I have downgrade 6.0.1 to 5.0 OF3 and root with kingroot again but it faile

anhminhvip said:
I have downgrade 6.0.1 to 5.0 OF3 and root with kingroot again but it faile
Click to expand...
Click to collapse
Yea, refer to the linked root thread in OP, there was some modification to kingroot that broke the exploit. I haven't been there in a few days, not sure if they found a workaround yet.
It's unfortunate, but another method or workaround could pop up anytime.
Sorry.

<ID:0/006> Odin engine v(ID:3.1101)..
<ID:0/006> File analysis..
<ID:0/006> SetupConnection..
<ID:0/006> Initialzation..
<ID:0/006> Set PIT file..
<ID:0/006> DO NOT TURN OFF TARGET!!
<ID:0/006> FAIL!
<ID:0/006>
<ID:0/006> Re-Partition operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Click to expand...
Click to collapse
Any reason as to why its happening?

daunow said:
Any reason as to why its happening?
Click to expand...
Click to collapse
I need more then that to go on. Off the top of my head, I'd recommend a different USB cable and also a verification that the PIT files were downloaded properly, as in, they aren't somehow corrupted.

IJoxer said:
I need more then that to go on. Off the top of my head, I'd recommend a different USB cable and also a verification that the PIT files were downloaded properly, as in, they aren't somehow corrupted.
Click to expand...
Click to collapse
Downloaded the files 3 times, and used 2 different usb.

With this guide could I change from the pb1 update? I'm on a g870a. If so what are my options?

IJoxer said:
DISCLAIMERI am not responsible for any damage done to your device. The following guide is to be used at your discretion, you are taking the risk of rendering your phone unusable. It is also advised to Factory Reset while following this guide, so backup, backup, backup! Only attempt if you are confident in doing so!
Marshmallow to LollipopA recent development has allowed us to root the G900A/G870A on 5.1.1., which you can find here. There is a guide for G900A users to downgrade from 6.0 to 5.0, but I wanted to provide a guide for Active users to do the same. Once you have downgraded to 5.0, you can root using this new method, or update to 5.1.1 and root. I was regretting my upgrade to MM, it wasn't worth the cost of root and custom roms, so this was exactly what I needed to love this phone again. Now, on to the guide.
Step 1
Download the necessary files using the following links:
G870A OF3 ODIN TARBALL
ODIN 3.11
Step 2
I will make the assumption you have the Samsung USB Drivers installed and can see your phone in File Explorer. Extract both of the downloaded files wherever you'd like, you'll have an Odin folder, and four files from the tarball: BL, AP, CP, and CSC files. Put them in their own folder, just to avoid any mistakes with flashing. Run Odin as Admin and you'll see 4 slots, which you'll fill with the 4 tar.md5 files you just extracted. You'll load the tar files into their appropriate slots, IE AP_* into the AP slot, and you will encounter delays as Odin reads and verifies the files.
Step 3
As a precaution, it's recommended to have your phone charged to at least 75%. Now to restart the phone into Download Mode, you do so by powering off the phone, then power on the phone holding the Volume Down + Home keys. Once in download mode, hook the phone up to your USB cable attached to your PC. (Most failed ODIN flashes are due to USB cables, you may need to try a few)
Step 4
Go back to Odin and you should see your phone show up in COM box. Once you've verified that the phone is showing up, verify that you have all of the tar files loaded into the appropriate slots, and push Start. You'll see the progress as each file is flashed, look for any error messages. Once everything is flashed, your phone should reboot and you'll see a green pass. At this point, I recommend doing a battery pull or hold down Volume Down + Home + Power keys until the phone reboots. Once it shuts off, immediately hold down Volume Up + Home to boot into recovery. Now just do a quick factory reset, wipe the cache, and reboot. You should now be back to OF3, you can verify this in recovery, or by going to About Device under Settings, under baseband it should read G870AUCU2BOF3.
Step 5
At this point, you can use the previously mentioned guide to obtain root. If interested, once you have root you can head over to the Unofficial List of Roms and use FlashFire to flash a shiny new rom.
I'd just like to thank @AptLogic for his contributions, as well as @719c6 for finding the OF3 tarballs.
Click to expand...
Click to collapse
Please, i want to know, does root work on this? I need root for my device. Thank

Just want to check, but for obtaining root I would follow Steps 1-6 in the OP linked guide and then do I follow through with Step 7 (flash 900a PreRooted OF3 ROM -- as described in the link) or do I jump straight to a new custom ROM?
If it helps, I'm trying to flash this ROM (XtreStoLite) to my 870a, which should work based on this post

,,,,
Sent from my SM-G550T1 using XDA-Developers Legacy app

Im already on OF3, but when I try to install the "combination" file from the guide you mention, ODIN doesnt install anything, tried different PC , usb ports, and usb cables aswell. is this the only way to get root? I mean it would be easier if we had a TWRP working for our device.

That's not for the active. It's for the 900A
Sent from my SAMSUNG-SM-G870A using XDA-Developers Legacy app

Unrooting Samsung Galaxy Note 8 (Exynos)

I have rooted my phone using this video (watch?v=ygcDFTPT248)
I was on Android 9
Everything seemed to go well, but the Magisk app was not installed (only the TWRP one) and a root checker I tried told me I was not rooted
I decided to let it go, but now not only does Netflix not work but I cannot even use Smart View, so I want to unroot (Or return to the normal samsung bootloader, whatever will fix my issues)
I tried downloading multiple firmwares for my phone, but I cannot install them.
I downloaded Odin3 from the official page, I put my phone in download mode, set AP to the AP_... file and the others the same (I had 2 CSC files: CSC_... and HOME_CSC... and I tried both), but I always get a fail text no matter what firmware I try to get
Is there some app like Apple's iTunes that can quickly just put the official firmware back on my phone or what could I do?

zzz__bob said:
I have rooted my phone using this video (watch?v=ygcDFTPT248)
I was on Android 9
Everything seemed to go well, but the Magisk app was not installed (only the TWRP one) and a root checker I tried told me I was not rooted
I decided to let it go, but now not only does Netflix not work but I cannot even use Smart View, so I want to unroot (Or return to the normal samsung bootloader, whatever will fix my issues)
I tried downloading multiple firmwares for my phone, but I cannot install them.
I downloaded Odin3 from the official page, I put my phone in download mode, set AP to the AP_... file and the others the same (I had 2 CSC files: CSC_... and HOME_CSC... and I tried both), but I always get a fail text no matter what firmware I try to get
Is there some app like Apple's iTunes that can quickly just put the official firmware back on my phone or what could I do?
Click to expand...
Click to collapse
Will need more information like
Current firmware
Firmware trying to flash
Odin version
Errors with Odin
Also with installing magisk if no manager app then you will have to install separately.

spawnlives said:
Will need more information like
Current firmware
Firmware trying to flash
Odin version
Errors with Odin
Also with installing magisk if no manager app then you will have to install separately.
Click to expand...
Click to collapse
I have fixed my issue
Here is for others that might find this thread:
Current firmware: N950FXXU6DSF3
Firmware I am trying to flash: N950FXXSADTC4
Odin version: 3.13.1
Initially I was getting a big FAIL! in the box above my phone, with nothing else that stood out in the console besides telling me the thread ended
I believe I was accidentally putting one of the CSC files in the USERDATA box
I only used BL, AP and CP and I succesfully installed the software!
Thanks anyways, bro

Database Develop

welcome