Database Develop

[Q] Rooting N900A to Lollipop while using T-mobile.

Ugh, I am having so many issues with this at the moment. One of those things being that I am using T-mobile as my carrier. I'm stuck on 4.4 at the moment, and need to update it. But, will that relock the phone? How do I re-unlock it if that happens? I've already read that I can't flash the phone to T-mobile ROM, but are there any custom ROMs that you would recommend [I do actually use the S-pen, not sure if any have been updated to where that can still be used.] Lastly, is there any way to get mobile hotspot and tethering to work now that I am using tmobile?

Spikemare said:
Ugh, I am having so many issues with this at the moment. One of those things being that I am using T-mobile as my carrier. I'm stuck on 4.4 at the moment, and need to update it. But, will that relock the phone? How do I re-unlock it if that happens? I've already read that I can't flash the phone to T-mobile ROM, but are there any custom ROMs that you would recommend [I do actually use the S-pen, not sure if any have been updated to where that can still be used.] Lastly, is there any way to get mobile hotspot and tethering to work now that I am using tmobile?
Click to expand...
Click to collapse
I never tried this Rom.
T-Mobile Alliance Lollipop Rom on ATT Note 3
http://forum.xda-developers.com/note-3-att/general/t-mobile-alliance-rom-att-note-3-t3065127 I don't think you would have to worry about any of this as you are using T-Mobile " After the phone came up, I went to settings..general..applications...running .... and found every Tmobile app and cleared cache and disabled them. The real important one here is the Visual Voicemail. Otherwise it will keep on trying to contact Tmobile and then you will get text messages saying there is an error. Thanks @sapps
Wifi Calling is throwing a sim card error (as you would expect). Only problem is it is shown in status bar and lockscreen. I'm sure there is a way to hide it or disable it. I just haven't had a chance to figure it out."

Rooted i747 said:
I never tried this Rom.
T-Mobile Alliance Lollipop Rom on ATT Note 3
http://forum.xda-developers.com/note-3-att/general/t-mobile-alliance-rom-att-note-3-t3065127 I don't think you would have to worry about any of this as you are using T-Mobile " After the phone came up, I went to settings..general..applications...running .... and found every Tmobile app and cleared cache and disabled them. The real important one here is the Visual Voicemail. Otherwise it will keep on trying to contact Tmobile and then you will get text messages saying there is an error. Thanks @sapps
Wifi Calling is throwing a sim card error (as you would expect). Only problem is it is shown in status bar and lockscreen. I'm sure there is a way to hide it or disable it. I just haven't had a chance to figure it out."
Click to expand...
Click to collapse
But it's the N900A, so it's the AT&T version. Won't that brick the phone if I put the tmobile ROM on it? That's what I've read in other threads on here anyway. [Honestly I shouldn't write when I'm tired, or I would have explained this better.]. Basically, I bought an unlocked AT&T phone. A Note 3 to be exact. It's stuck on 4.4 but can upgrade to lolipop. Nothing I try will let me upgrade the normal way. I'm not sure how to upgrade it without relocking the SIM card somehow. Or is the simcard already semi-locked and that's why it's giving me the error? I also can't even find a AT&T specific rooting guide for this phone. I saw every other carrier except AT&T, does that even make a difference? And are there any ROMs that can return S-pen programs after I install them, or should I just stop at rooting if I want that? If so, I just really want to upgrade to lollipop and root the phone. I would like my mobile hotspot and wifi calling to work, but I suppose I can make do with hangouts.

Spikemare said:
But it's the N900A, so it's the AT&T version. Won't that brick the phone if I put the tmobile ROM on it? That's what I've read in other threads on here anyway. [Honestly I shouldn't write when I'm tired, or I would have explained this better.]. Basically, I bought an unlocked AT&T phone. A Note 3 to be exact. It's stuck on 4.4 but can upgrade to lolipop. Nothing I try will let me upgrade the normal way. I'm not sure how to upgrade it without relocking the SIM card somehow. Or is the simcard already semi-locked and that's why it's giving me the error? I also can't even find a AT&T specific rooting guide for this phone. I saw every other carrier except AT&T, does that even make a difference? And are there any ROMs that can return S-pen programs after I install them, or should I just stop at rooting if I want that? If so, I just really want to upgrade to lollipop and root the phone. I would like my mobile hotspot and wifi calling to work, but I suppose I can make do with hangouts.
Click to expand...
Click to collapse
It won't brick you phone. It's a T-Mobile Rom that's been ported for AT&T Note 3. After you flash the Rom, you have to Odin the N900A_OC1_ALL_Other_Stock_Partitions.tar.md5 using Odin's PDA slot. As far as rooting what you have now, just use Towel root https://towelroot.com/ (install on phone like any other app) and click "make it rain". Install Supersu, busybox and Safestrap. OR use Kingo Root http://www.kingoapp.com/ (Kingo Root will install supersu for you). The reason it won't upgrade to Lollipop is you have a T-Mobile sim card in it. It needs a AT&T sim card (I have AT&T and can't upgrade mine unless the sim card is in the phone). If you just want a rooted Lollipop Rom, but it's AT&T http://forum.xda-developers.com/showpost.php?p=59666958&postcount=2 You know since you're on T-Mobile you have to go into settings>more networks>mobile networks>access point names and change it to T-Mobile's APN. I would just root it and put the T-Mobile Alliance Lollipop Rom on ATT Note 3 on it. I gave it a try yesterday and it does have T-Mobile apps on it, just not for me. Just remember to change the APN to T-Mobile's ( just write down the one you using now).

Need help please

I currently am running cyanogen mod that a coworker installed on the S3 I have for a previous owner and in my eyes it was working fine when I purchased the phone third hand.
I had subscribed also to a few data plans and never had a problem until the last data plan subscription. I took it down to the service provider and the technician said it might be that my rooted phone is causing the issue. I never had a problem before so found it odd but he took my sim card out, put it in another phone and the data plan was working just fine but in my phone, it just wouldn't even though the settings are correct.
I would like to unroot the S3 now to see if I can have this problem fixed and would love some assistance. From what I can tell the phone is using SuperUser as that's what usually asks to request permission for apps that I install.
How do I return my phone to stock ROM without damaging it?
Thanks!

We need more details, did you check your baseband and try to flash another modem ?

bajanrose said:
I currently am running cyanogen mod that a coworker installed on the S3 I have for a previous owner and in my eyes it was working fine when I purchased the phone third hand.
I had subscribed also to a few data plans and never had a problem until the last data plan subscription. I took it down to the service provider and the technician said it might be that my rooted phone is causing the issue. I never had a problem before so found it odd but he took my sim card out, put it in another phone and the data plan was working just fine but in my phone, it just wouldn't even though the settings are correct.
I would like to unroot the S3 now to see if I can have this problem fixed and would love some assistance. From what I can tell the phone is using SuperUser as that's what usually asks to request permission for apps that I install.
How do I return my phone to stock ROM without damaging it?
Thanks!
Click to expand...
Click to collapse
For S3 (i9300) -> GT-I9300
For S3 LTE (i9305) -> GT-I9305
Instructions
Extract (unzip) the firmware file
Download Odin v3.10.6
Extract Odin ZIP file
Open Odin v.3.10.6
Reboot Phone in Download Mode (press and hold Home + Power + Volume Down buttons)
Connect phone and wait until you get a blue sign in Odin
Add the firmware file to AP / PDA
Make sure re-partition is NOT ticked
Click the start button, sit back and wait few minutes

Thank you very much
I contacted a friend and he told me that he doesn't think it's the phone but maybe the OS so I then switched the phone over to Omega Omni and so far the data plan is working properly.

Firmware version blank/baseband blank/Imei null

I am lost. I have been reading through hours of material and am still not sure what to do. I purchased my att samsung galaxy note 3 n900a from a friend and it seems it use to be rooted. It has a custom recovery. I was able to verify the imei is good with att but had to use a program to locate it. My baseband is blank. It shows I have android 5.0 and that build is lrx21v. N900aucueoc2 4335446. But when I run a firmware test to see what I need to download (if that's even what I should be doing) it shows my phone is n900aucubmi9 android 4.3. My kernel shows 3.4.0-4335446. I'm not sure where to start for all the issues the phone has and I'm not sure I should download the 4.3 firmware when it's currently on 5.0. Please help.

hbaca25 said:
I am lost. I have been reading through hours of material and am still not sure what to do. I purchased my att samsung galaxy note 3 n900a from a friend and it seems it use to be rooted. It has a custom recovery. I was able to verify the imei is good with att but had to use a program to locate it. My baseband is blank. It shows I have android 5.0 and that build is lrx21v. N900aucueoc2 4335446. But when I run a firmware test to see what I need to download (if that's even what I should be doing) it shows my phone is n900aucubmi9 android 4.3. My kernel shows 3.4.0-4335446. I'm not sure where to start for all the issues the phone has and I'm not sure I should download the 4.3 firmware when it's currently on 5.0. Please help.
Click to expand...
Click to collapse
Not sure what it takes to get someone to reply on this but ok..... i was able to get a sim card and put service on it and it has made the phone work every now and then. It keeps slipping back into no mobile network and stops working though. I have updated the apn settings to the correct options. Still when it turns the network off it goes back to no baseband showing, no imei, tells me to insert sim. I'm wondering if it has something to do with the custom recovery that I have on it. I'm honestly not sure CAUSE IM NOT ABLE TO GET ANY FEEDBACK.

hbaca25 said:
Not sure what it takes to get someone to reply on this but ok..... i was able to get a sim card and put service on it and it has made the phone work every now and then. It keeps slipping back into no mobile network and stops working though. I have updated the apn settings to the correct options. Still when it turns the network off it goes back to no baseband showing, no imei, tells me to insert sim. I'm wondering if it has something to do with the custom recovery that I have on it. I'm honestly not sure CAUSE IM NOT ABLE TO GET ANY FEEDBACK.
Click to expand...
Click to collapse
I am no expert on this, and cannot offer much advice for it may violate the terms of this site. BUT, it sounds like you have a corrupt EFS partition, which is where the IMEI is stored. It is possible to set it right, but for that, you have to do your own research. Searching these forums for threads related to fixing EFS should be a good place to start.
Please note that I do not know if this is the case with your device. Its just where I would start my search. Good luck!

SM-N960U Stuck In Roaming After Moving From Sprint To Verizon

Hi
I have a Note 9 which was originally purchased through Sprint. It's carrier unlocked. After moving the phone to Verizon it remains stuck in Roaming. Technicians at Verizon store clam they've never seen this problem before.
The network's shown as "Preferred System." Factory reset did not help.
I think the phone has Sprint firmware since the Sprint logo shows upon restart.
What works on phone:
Incoming / Outgoing Calls
Internet [around 60MBps]
SMS messages
What's broke:
MMS messages using default "Messaging" application
My wife's pretty upset about this problem.
I am running Linux Mint and familiar with Heimdall.
Do I need to flash Verizon firmware onto this phone?

quackmaster said:
Hi
I have a Note 9 which was originally purchased through Sprint. It's carrier unlocked. After moving the phone to Verizon it remains stuck in Roaming. Technicians at Verizon store clam they've never seen this problem before.
The network's shown as "Preferred System." Factory reset did not help.
I think the phone has Sprint firmware since the Sprint logo shows upon restart.
What works on phone:
Incoming / Outgoing Calls
Internet [around 60MBps]
SMS messages
What's broke:
MMS messages using default "Messaging" application
My wife's pretty upset about this problem.
I am running Linux Mint and familiar with Heimdall.
Do I need to flash Verizon firmware onto this phone?
Click to expand...
Click to collapse
Since you've already done a factory reset I would think the next logical step is to flash the Verizon or the unlocked firmware. What about the SIM card, did they try a new one?

They only tried one SIM.
When flashing with Heimdal do I simply need to download the Verizon firmware from SamMobile?

quackmaster said:
They only tried one SIM.
When flashing with Heimdal do I simply need to download the Verizon firmware from SamMobile?
Click to expand...
Click to collapse
There is a thread somewhere in the guide section I recall seeing before from daillcyruz (I think was the OP). Search it and you will find instructions on how to install the VZ firmware.

I am getting an error with Heimdall that there's no firmware.xml.
Indeed the firmware from SamFiles does not contain any xml files.
Any idea how these can be obtained? Goggle does not seem to help.

quackmaster said:
I am getting an error with Heimdall that there's no firmware.xml.
Indeed the firmware from SamFiles does not contain any xml files.
Any idea how these can be obtained? Goggle does not seem to help.
Click to expand...
Click to collapse
Maybe try using Odin?

BladeRunner said:
Maybe try using Odin?
Click to expand...
Click to collapse
I do not have a Windows machine. Only Linux.
Maybe I can run a VM.

quackmaster said:
I do not have a Windows machine. Only Linux.
Maybe I can run a VM.
Click to expand...
Click to collapse
I ran across a thread where someone had posted a version of Odin that ran on Linux.
Here's one: https://forum.xda-developers.com/android/general/utility-odin-linux-jodin3-casual-t3777030
and another: https://forum.xda-developers.com/android/general/odin4-v1-0-linux-t3782930

None of these work. I am not able to get the PIT from device.

quackmaster said:
None of these work. I am not able to get the PIT from device.
Click to expand...
Click to collapse
you might be able to use odin in wine.. i never tried it tho.. heimdall i havent got to work either..
what firmware are you on? pie is pretty good at switchin csc based on sim inserted.. also crk3 i think it is you can access the csc.apk and change csc easily to any csc.. i havent found any other firmware it works on tho besides crk3..
if u can manage that, theres update.zips you can adb sideload but u need to b on specific firmware versions to update to certain firmwares..
i was messin around with firmwares and changed my csc to sprint.. i have vzw.. although it says roaming i am connected to verizon network so dont think its actually roaming but im not 100% sure

OK
Thanks everyone for help!
I was able to successfully flash using a Windows 10 VM running in Oracle VirtualBox VM. I used Odin v3.13_B. I did not re-partition.
I used this firmware:
https://www.sammobile.com/firmwares/galaxy-note9/SM-N960U/VZW/download/N960USQS1ARJ9/242777/
There were no errors though after the phone rebooted it said there was an "unauthorized attempt" to install software.
It then tells me to connect to Wifi in order to verify my identity.
I cannot skip this process.
The Sprint firmware still seems to be present as I see Sprint applications. I am still roaming on Verizon though the port request was completed at least that's what they said at the store.
Interestingly the Sprint logo does not appear upon booting phone. Only the Samsung logo.
To remove Sprint firmware do I need to flash to the non-carrier firmware first before trying Verizon?

I sounds like someone else had the same problem with the SM-N960U.
The solution in that thread seems to be using the SM-N960U1 firmware.
Can anyone confirm this would be a safe fix to try?

SamMobile is a horrible website
I paid the 8 euro fee and the download for https://www.sammobile.com/firmwares/galaxy-note9/SM-N960U1/VZW/download/N960U1UES1ARJ9/244757/ still takes like an hour.

It seems there's some Google phone protection targeted to deter thieves. That could be why it requires me to sign into the previous Google account after flashing.
I am removing my Google account from the phone, doing factory reset, then will try to flash Verizon firmware.

After flashing again it looks like some software called "Sprint OMDAM" still present on the phone. This loads after flashing. When I try to activate on network it comes up while the phone remains in roaming. Again Sprint unlocked the phone.
Should I re-partition?

OK
I wiped the cache partition and did factory reset.
I will yet again try another flash.

The Sprint logo is gone but Sprint apps still remain.
Should I try to re-partition the phone? I don't understand why Sprint applications are showing up when I flash Verizon firmware using Odin.

Make sure you have a Verizon SIM card in the phone.
1. Remove your accounts (Google and Samsung) under settings.
2. Factory reset under settings.
3. Download the U1 firmware using the SamFirm tool
4. Using modded ODIN 3.13.1B flash all four files (use CSC_OYN not the HOME_CSC file).
Optional, if you want WiFi calling and VoLTE:
Download the VZW N960U firmware using the SamFirm tool and flash it the same way using modded ODIN, but this time include the USERDATA file as well.

I think now on Verizon network after using U1 firmware!

Please help! Flashing AT&T N960U firmware on N960U1 device with Android 10

Hi guys,
I have a question about obtaining Android 10 AT&T firmware for the SM-960U. I'm currently having an issue where I bought the Samsung Galaxy Note 9 N960U1 factory unlocked from Samsung themselves. My current carrier is AT&T. However, I've realized for a while that my area doesn't have a good signal (1 bar to no service) due to the location where I am. I am trying to install AT&T's firmware with the boot logo and its software's bloatware to obtain Wi-Fi calling. However, I am having trouble. Currently, I've flashed my N960U1 with AT&T's U1 Android 10 firmware from the site using Odin. I see that it's been flashed successfully after doing a clean install and see AT&T firmware in the phone. However, it did not give me an AT&T boot logo screen or give me the Wi-Fi calling option. This is carrier unbranded. It's still the same like it's from the factory unlock no carrier firmware. So, after doing some research, I see that what I have to do is: clean flash AT&T's U1 firmware on the device (which I did), then, finally, install the U firmware to bring on the AT&T boot logo screen and WiFi calling. However, I am unable to do the 2nd part, because the only available firmware for U firmware (AT&T's bloatware) is Android 8. Due to the bootloader being version 4 in Android 10 and version 2 in android 8, I cannot downgrade even on a cracked Odin version. The phone gives me a SW REV error and odin gives me a write error. I worked on this for 8 hours, don't try to fight me on this lol. This is because Odin understands that the phone can't be downgraded due to the bootloader version being higher. This can be seen in the firmware names when comparing (Android 8: N960USQU1ARG6. Android 10: N960U1UES4DTD1).
In summary, I need to find the SM-960U AT&T carrier-branded Android 10 firmware. Right now, on Sam Mobile for N960U, the only firmware that comes up is Android 8. Downloading the latest firmware for the SM-N960U1 on Sam Mobile doesn't help me obtain wifi calling and the AT&T boot logo. Any suggestions? I really need help and appreciate it if you guys could help me. I can't find AT&T's U anywhere. Thanks!

You can flash any U firmware they are the same. As long as you have At&t sim it will provision to your sim. Since you are U1 you will need to do factory reset before flashing with Odin. You can use USC..Tmobile..Verizon. Dont use User data when flashing just use BL..AP..CP..CSC. At&t doesnt post their locked firmware for whatever reason.
Sent from my SM-N960U using Tapatalk

butchieboy said:
You can flash any U firmware they are the same. As long as you have At&t sim it will provision to your sim. Since you are U1 you will need to do factory reset before flashing with Odin. You can use USC..Tmobile..Verizon. Dont use User data when flashing just use BL..AP..CP..CSC. At&t doesnt post their locked firmware for whatever reason.
Sent from my SM-N960U using Tapatalk
Click to expand...
Click to collapse
Awesome. I’m going to try this tomorrow. I’ll update this post with the results! Thanks for the help.

butchieboy said:
You can flash any U firmware they are the same. As long as you have At&t sim it will provision to your sim. Since you are U1 you will need to do factory reset before flashing with Odin. You can use USC..Tmobile..Verizon. Dont use User data when flashing just use BL..AP..CP..CSC. At&t doesnt post their locked firmware for whatever reason.
Sent from my SM-N960U using Tapatalk
Click to expand...
Click to collapse
Hi guys! After 18 straight hours of fiddling and researching, not getting a definite answer from XDA and Sammobile forums since my phone was on the latest bootloader v4: I've finally been able to find out how to do this, thanks to butchieboy and a culmination other forums, I've finally been able to successfully figure this out!
Basically, here are the steps to successfully do it if you're on Android 10/bootloader v4 and want to make the switch without downgrading the software on a lower bootloader. Make sure you do a clean reinstall beforehand. Everything should be off the phone.
1. Download and flash U1 firmware from samfw as a clean install. I used ATT's U1 firmware (follow the instructions below to do so). I did this first and was confused about why I didn't get the bloatware after. However, this is only the first step.
2. I found the latest firmware from Verizon for the SM-960U (not U1), and downloaded patched Odin 3.13.1b onto my computer. I downloaded these both from samfw's website. You'll need the patched version to be able to switch from U1 to U firmware. I used Verizon's instead of T-Mobile's because they had posted the latest version for Android 10.
3. Run Odin as admin, make sure you're using a computer with open USB ports for data transfer (one of my computers gave me an error, switched to another one, it worked fine). Make sure you use a good data transfer cable also.
4. Enable USB debugging on the device, and reboot the phone into recovery mode. Don't connect it to the computer yet. Do not remove the SIM card during any part of this process. Leave it inserted the entire time.
4. Load up BL..AP..CP..CSC as butchieboy states. Do not use home_csc and do not use userdata. They are not needed. CSC needs to be used because it has to be a clean install in order for this to work properly. By not using userdata, the device will load up the appropriate carrier bloatware automatically using the SIM card provided!
5. Go ahead and connect the phone via a data transfer cable. You will see a serial COM port labeled in blue connected on top. Now flash Verizon's U firmware
6. The phone should successfully flash via Odin, and it will reboot
7. I had gotten into this weird recovery state at first when it rebooted. I forgot the error name on the bottom and was confused at first it was SW REV or something I think. However, I think the reason for this is because the phone doesn't know which carrier setting to apply just yet. There were options to reboot, update from SD card, and more.
8. Select "reboot" using the power button!
9. You'll see the AT&T logo as the phone reboots! Not sure why my phone didn't end up erasing, it just apparently did an update.
The first thing I see after the apps loaded was... the WiFi calling setup screen... Victory! Thanks to everybody who posted on online forums. And thanks to butchieboy for the straightforward answer. I hope this helps anybody online looking to do the same thing whether it's their Note 9 or any other device. Good luck!

robertj51 said:
Hi guys! After 18 straight hours of fiddling and researching, not getting a definite answer from XDA and Sammobile forums since my phone was on the latest bootloader v4: I've finally been able to find out how to do this, thanks to butchieboy and a culmination other forums, I've finally been able to successfully figure this out!
Basically, here are the steps to successfully do it if you're on Android 10/bootloader v4 and want to make the switch without downgrading the software on a lower bootloader:
1. Download and flash U1 firmware from samfw as a clean install. I used ATT's U1 firmware (follow the instructions below to do so). I did this first and was confused about why I didn't get the bloatware after. However, this is only the first step.
2. I found the latest firmware from Verizon for the SM-960U (not U1), and downloaded patched Odin 3.13.1b onto my computer. I downloaded these both from samfw's website. You'll need the patched version to be able to switch from U1 to U firmware. I used Verizon's instead of T-Mobile's because they had posted the latest version for Android 10.
3. Run Odin as admin, make sure you're using a computer with open USB ports for data transfer (one of my computers gave me an error, switched to another one, it worked fine). Make sure you use a good data transfer port also.
4. Enable USB debugging on the device, and reboot the phone into recovery mode. Don't connect it to the computer yet.
4. Load up BL..AP..CP..CSC as butchieboy states. Do not use home_csc and do not use userdata. They are not needed. CSC needs to be used because it has to be a clean install in order for this to work properly. By not using userdata, the device will load up the appropriate carrier bloatware automatically using the SIM card provided!
5. Go ahead and connect the phone via a data transfer cable. You will see a serial COM port in blue connected on top. Now flash Verizon's U firmware
6. The phone should successfully flash via Odin, and it will reboot
7. I had gotten into this weird recovery state at first when it rebooted. I forgot the error name on the bottom and was confused at first it was SW REV or something I think. However, I think the reason for this is because the phone doesn't know which carrier setting to apply just yet. There were options to reboot, update from SD card, and more.
8. Select "reboot" using the power button!
9. You'll see the AT&T logo as the phone reboots! Not sure why my phone didn't end up erasing, it just updated.
The first thing I see after the apps loaded was... the WiFi calling setup screen... Victory! Thanks to everybody who posted on online forums. And thanks to butchieboy for the straightforward answer. I hope this helps anybody online looking to do the same thing whether it's their Note 9 or any other device. Good luck!
Click to expand...
Click to collapse
I am really glad I found your post and I'm going to attempt this same procedure today. Quick question, does it matter if / when your SIM is inserted into the phone? Just wondering if I need to leave it in or out during this process or whether that will even have an affect? Is your Wi-Fi calling still working currently, btw?

Carl_Sagan_Cosmos said:
I am really glad I found your post and I'm going to attempt this same procedure today. Quick question, does it matter if / when your SIM is inserted into the phone? Just wondering if I need to leave it in or out during this process or whether that will even have an affect? Is your Wi-Fi calling still working currently, btw?
Click to expand...
Click to collapse
Hey Carl! Sorry for the late response. I'm glad you found my post as well!
I apologize for this, I should've mentioned this in my original post: please leave the AT&T SIM card inserted in the device the entire time during this process! When the phone reboots after Odin flashes, the first thing it searches for is what SIM is inserted so it can flash the appropriate carrier setting. Do not remove the SIM during any part of the process from start to finish.
Secondly, yes! The WiFi calling feature is working great on the phone. I'm glad after two years of having the phone I was able to get the feature this month. Good luck. Please let me know if you were successful in flashing the firmware, I'd really like to hear your results! My notifications are turned back on for this thread.

robertj51 said:
Hi guys! After 18 straight hours of fiddling and researching, not getting a definite answer from XDA and Sammobile forums since my phone was on the latest bootloader v4: I've finally been able to find out how to do this, thanks to butchieboy and a culmination other forums, I've finally been able to successfully figure this out!
Basically, here are the steps to successfully do it if you're on Android 10/bootloader v4 and want to make the switch without downgrading the software on a lower bootloader. Make sure you do a clean reinstall beforehand. Everything should be off the phone.
1. Download and flash U1 firmware from samfw as a clean install. I used ATT's U1 firmware (follow the instructions below to do so). I did this first and was confused about why I didn't get the bloatware after. However, this is only the first step.
2. I found the latest firmware from Verizon for the SM-960U (not U1), and downloaded patched Odin 3.13.1b onto my computer. I downloaded these both from samfw's website. You'll need the patched version to be able to switch from U1 to U firmware. I used Verizon's instead of T-Mobile's because they had posted the latest version for Android 10.
3. Run Odin as admin, make sure you're using a computer with open USB ports for data transfer (one of my computers gave me an error, switched to another one, it worked fine). Make sure you use a good data transfer cable also.
4. Enable USB debugging on the device, and reboot the phone into recovery mode. Don't connect it to the computer yet. Do not remove the SIM card during any part of this process. Leave it inserted the entire time.
4. Load up BL..AP..CP..CSC as butchieboy states. Do not use home_csc and do not use userdata. They are not needed. CSC needs to be used because it has to be a clean install in order for this to work properly. By not using userdata, the device will load up the appropriate carrier bloatware automatically using the SIM card provided!
5. Go ahead and connect the phone via a data transfer cable. You will see a serial COM port labeled in blue connected on top. Now flash Verizon's U firmware
6. The phone should successfully flash via Odin, and it will reboot
7. I had gotten into this weird recovery state at first when it rebooted. I forgot the error name on the bottom and was confused at first it was SW REV or something I think. However, I think the reason for this is because the phone doesn't know which carrier setting to apply just yet. There were options to reboot, update from SD card, and more.
8. Select "reboot" using the power button!
9. You'll see the AT&T logo as the phone reboots! Not sure why my phone didn't end up erasing, it just apparently did an update.
The first thing I see after the apps loaded was... the WiFi calling setup screen... Victory! Thanks to everybody who posted on online forums. And thanks to butchieboy for the straightforward answer. I hope this helps anybody online looking to do the same thing whether it's their Note 9 or any other device. Good luck!
Click to expand...
Click to collapse
What to do if i don't have at&t sim card, not even usa sim card, i'm in egypt and brought my n960u from usa, i installed u1 firm but realized that no wifi calling or volte so tried to install tmobile carrier firm and nothing appeared then tried at&t and also nothing appeared, neither the options nor the boot logo for tmobile or at&t.
what to do please help!
Thanks in advance

abulnass said:
What to do if i don't have at&t sim card, not even usa sim card, i'm in egypt and brought my n960u from usa, i installed u1 firm but realized that no wifi calling or volte so tried to install tmobile carrier firm and nothing appeared then tried at&t and also nothing appeared, neither the options nor the boot logo for tmobile or at&t.
what to do please help!
Thanks in advance
Click to expand...
Click to collapse
If you are trying to flash T-Mobile or AT&T bloat ware without a carrier SIM card, it will not work.

Hi. What if I have an AT&T sim card, but I'm also outside US. Not sure if the sim card is active or not.
My biggest worry was, I just had my phone factory unlocked so I can use a local sim card here in the country.
Will this work? And if it will, will my phone go back to being locked by AT&T?

Hi, I tried this process the way you have it listed and it is not working. I keep getting a device info error in Odin. Tried the newest firmware and an older version

robertj51 said:
Hi guys! After 18 straight hours of fiddling and researching, not getting a definite answer from XDA and Sammobile forums since my phone was on the latest bootloader v4: I've finally been able to find out how to do this, thanks to butchieboy and a culmination other forums, I've finally been able to successfully figure this out!
Basically, here are the steps to successfully do it if you're on Android 10/bootloader v4 and want to make the switch without downgrading the software on a lower bootloader. Make sure you do a clean reinstall beforehand. Everything should be off the phone.
1. Download and flash U1 firmware from samfw as a clean install. I used ATT's U1 firmware (follow the instructions below to do so). I did this first and was confused about why I didn't get the bloatware after. However, this is only the first step.
2. I found the latest firmware from Verizon for the SM-960U (not U1), and downloaded patched Odin 3.13.1b onto my computer. I downloaded these both from samfw's website. You'll need the patched version to be able to switch from U1 to U firmware. I used Verizon's instead of T-Mobile's because they had posted the latest version for Android 10.
3. Run Odin as admin, make sure you're using a computer with open USB ports for data transfer (one of my computers gave me an error, switched to another one, it worked fine). Make sure you use a good data transfer cable also.
4. Enable USB debugging on the device, and reboot the phone into recovery mode. Don't connect it to the computer yet. Do not remove the SIM card during any part of this process. Leave it inserted the entire time.
4. Load up BL..AP..CP..CSC as butchieboy states. Do not use home_csc and do not use userdata. They are not needed. CSC needs to be used because it has to be a clean install in order for this to work properly. By not using userdata, the device will load up the appropriate carrier bloatware automatically using the SIM card provided!
5. Go ahead and connect the phone via a data transfer cable. You will see a serial COM port labeled in blue connected on top. Now flash Verizon's U firmware
6. The phone should successfully flash via Odin, and it will reboot
7. I had gotten into this weird recovery state at first when it rebooted. I forgot the error name on the bottom and was confused at first it was SW REV or something I think. However, I think the reason for this is because the phone doesn't know which carrier setting to apply just yet. There were options to reboot, update from SD card, and more.
8. Select "reboot" using the power button!
9. You'll see the AT&T logo as the phone reboots! Not sure why my phone didn't end up erasing, it just apparently did an update.
The first thing I see after the apps loaded was... the WiFi calling setup screen... Victory! Thanks to everybody who posted on online forums. And thanks to butchieboy for the straightforward answer. I hope this helps anybody online looking to do the same thing whether it's their Note 9 or any other device. Good luck!
Click to expand...
Click to collapse
right at the beginning using odin it threw me an error, but it's probably because I used CSC home ...? How can I verify on Samsung Note 9 if I have an unlocked bootloader ..?
Edit: He used CSC not CSC home and an older version of odin. And I have a sim from Europe and it works great.

I need help, i have a sm n960u factory unlocked at&t branded using straight talk at&t sim. I have no volte or wifi calling settings. With special code they are greyed out and provisioned. Is there any way i can fix this issue?