For those who don't know, G960U is the model number of all of the US carrier versions of the Galaxy S9. The G960U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100% interchangeable among these models: any U or U1 firmware version can be flashed to any U or U1 device at any time, assuming that you're not trying to downgrade the bootloader. A "U to U" or "U1 to U1" flash does not require a factory reset, but changing from one firmware to the other will require one. Also, U firmware is identical for the 4 base files (AP, BL, CP, CSC) for each individual build, no matter which carrier it comes from. So if you download 2 different carrier versions of the exact same build, the 4 base files will be identical. Where the firmware differs is in the USERDATA file - that's where the carrier bloatware and customizations reside.
Manual Odin flashing is designed for those who:
- want to manually update to a newer version of U firmware on their U device, either because they don't want to wait for their carrier's OTA or because OTAs aren't working on their device, or a different carrier got a new feature/patch before they did
- want to flash U1 firmware to their U device
- want to convert from U1 firmware to carrier U firmware
- want to convert from one carrier's U firmware (with all apps and bloatware) to a different carrier's U firmware (with all apps and bloatware)
For those who aren't already aware, anyone can now download firmware for almost any Samsung device any time that they want, via SamFirm or Frija. There are threads and info about them here on XDA so I won't waste time explaining - do a search if you're not already familiar with these tools. But they only provide whatever the latest/newest/current version is - nothing older. I pay for a subscription to a site that gets the official releases (usually) before they hit SamFirm/Frija, so that's where my files come from. However, I don't have unlimited bandwidth on the site, and it's also quite time consuming to download the files, zip them up, and upload them to AFH. And, I do threads like this for every single Sx and Note x model - so I won't be uploading every single version. The only full builds that I upload are ones where I get access to a new bootloader and/or Android version early, before they hit SamFirm/Frija.
This is not a "beginner's guide to Odin flashing" -type post/thread, so I won't list basic, step-by-step flashing instructions. My threads are geared towards those who already know what they're doing. If you're new to manually flashing Samsung firmware (or haven't done it in a long time), I recommend you consult one of those "beginner's" guides- there are tons of them here on XDA.
Odin 3.13.1 3B Patched is required for flashing these.
Happy flashing!
U firmware: https://www.androidfilehost.com/?w=files&flid=257018
U1 firmware: https://www.androidfilehost.com/?w=files&flid=257047
Notes:
- DON'T QUOTE THE OP WHEN YOU REPLY, kthx
- I have lots of threads just like this one for other Samsung flagships, if it interests you. For those who have already made use of my previous threads for a different device and are upgrading to an S9+, welcome back
- My zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
- My naming method for folders on AFH is: build - bootloader - Android version
So "SAT - 1 - 9.0" means the full build number ends in SAT, it's bootloader version 1, and it's Android 9.0. When bootloader and Android versions increment, the first build to have those changes will have its folder notated appropriately.
- HOME CSC file keeps data intact; using the other CSC will wipe data. Flashing USERDATA will also wipe data.
- Since AT&T doesn't allow their firmware to be publicly available (for any of their devices), I'll try to always upload at least one USERDATA per bootloader increment for AT&T and Cricket. I'll also upload any full builds if AT&T is the only carrier to get that specific build, because you won't be able to find the files anywhere else.
- For identifying USERDATAS, and to know what region/CSC to use in SamFirm/Frija:
AIO = Cricket (not available via SamFirm/Frija)
ATT = AT&T (not available via SamFirm/Frija)
BST = Boost Mobile
CCT = Xfinity Mobile (Comcast)
CHA = Spectrum Mobile (Charter)
SPR = Sprint
TMB = T-Mobile
TMK = Metro PCS
USC = US Cellular
VZW = Verizon (available via SamFirm/Frija, but Manual Entry is required - Auto will not work)
XAA = U1 firmware
- the correct procedure for switching from one carrier's firmware to another is:
1. Flash full U1 firmware package including non HOME CSC
2. Upon boot, insert a SIM of the carrier whose firmware you want
3. Watch for the popup that says "reboot to apply new carrier settings" etc, and do it
4. After that restart completes, reboot back to Download mode and flash the full U firmware package, with the USERDATA file of the carrier whose firmware you want
want
Is this unlocked or a carrier?
Cozmo85 said:
Is this unlocked or a carrier?
Click to expand...
Click to collapse
I don't understand what you're asking
iBowToAndroid said:
I don't understand what you're asking
Click to expand...
Click to collapse
The firmware posted. Is it carrier specific, like AT&T version or Verizon version.
Anyone else try Odin on the S9? It just crashes for me but never had any issues on the S8. 3.2.13
Faulting application name: Odin3.exe, version: 2016.1.21.1, time stamp: 0x56a0c21a
Faulting module name: Odin3.exe, version: 2016.1.21.1, time stamp: 0x56a0c21a
Exception code: 0xc0000094
Fault offset: 0x0002ebd4
Faulting process id: 0x38b4
Faulting application start time: 0x01d3bc0249b0ff88
Faulting application path: C:\Users\Paul\Downloads\Odin3_v3.12.3\Odin3.exe
Faulting module path: C:\Users\User\Downloads\Odin3_v3.12.3\Odin3.exe
Report Id: b49e6a33-3057-4066-81c2-08dd29e7f55f
Faulting package full name:
Faulting package-relative application ID:
Never mind, grabbed the latest Odin.
Cozmo85 said:
The firmware posted. Is it carrier specific, like AT&T version or Verizon version.
Click to expand...
Click to collapse
Starting with the S8, firmware is universal. Bloatware and carrier customization is determined by the USERDATA file that you flash
GrandMstrBud said:
Anyone else try Odin on the S9? It just crashes for me but never had any issues on the S8. 3.2.13
Edit: Never mind, grabbed the latest Odin.
Click to expand...
Click to collapse
So these files do flash fine with latest Odin?
iBowToAndroid said:
Starting with the S8, firmware is universal. Bloatware and carrier customization is determined by the USERDATA file that you flash
So these files do flash fine with latest Odin?
Click to expand...
Click to collapse
So all I need to do is flash the userdata file in Odin?
GrandMstrBud said:
So all I need to do is flash the userdata file in Odin?
Click to expand...
Click to collapse
I don't know if you can *only* flash USERDATA by itself. I suppose if the Build is the same, you can try.
iBowToAndroid said:
I don't know if you can *only* flash USERDATA by itself. I suppose if the Build is the same, you can try.
Click to expand...
Click to collapse
I tried with the entire build with the userdata and it's still the stock firmware with no sprint customization's.
GrandMstrBud said:
I tried with the entire build with the userdata and it's still the stock firmware with no sprint customization's.
Click to expand...
Click to collapse
Which carrier is yours from and/or where did you get it?
iBowToAndroid said:
Which carrier is yours from and/or where did you get it?
Click to expand...
Click to collapse
I'm on sprint and I used the Samfirm app to download the sprint firmware. Model SM-G960U and Region SPR.
I found some other sites with more files but not sure which would be proper ones to use nor do I have a way to get them as seem to require payments or premium download services.
They seem to be much larger in size so probably the full files we'd want?
http://samsung-updates.com/details/122078//SM-G960U1/SPR/G960U1UEU1ARBG.html - This one seems to indicate the unlocked model (U1) number but yet is SPR firmware somehow??
http://samsung-updates.com/details/121907/Galaxy_S9_SM-G960U/SM-G960U/SPR/G960USQU1ARB7.html - this one seems like it maybe the actual sprint one for the sprint model?
https://firmware.gem-flash.com/index.php?a=browse&b=category&id=14757 - This site seems to have other files with different names too. Maybe this is one without the security patch, IE the very first FW?
I like others purchased unlocked but want to load the bloat version to gain the extra features but want it to be able to auto update and be just like the branded ones.
On my old S7E people just had simple instructions with a single file or two to flip between unlocked and locked. This file the OP posted seems too small...
GrandMstrBud said:
I'm on sprint and I used the Samfirm app to download the sprint firmware. Model SM-G960U and Region SPR.
Click to expand...
Click to collapse
If you're on Sprint, then you should already have Sprint customizations
bryanu said:
This file the OP posted seems too small...
Click to expand...
Click to collapse
Ever heard of compression? I promise you, all the files you need are right there
I bought the unlocked one not the sprint version
GrandMstrBud said:
I bought the unlocked one not the sprint version
Click to expand...
Click to collapse
There's no guarantee you can convert. I convert from U to U1 every day for my customers. I don't think I've ever gone the other way though.
But if it's possible, you'd need to flash the full firmware with wipe CSC and SPR userdata, and then afterwards insert a Sprint SIM until you get the prompt to reboot to apply the CSC features
I’ve done it on the S8 I had the S8U and flashed to the sprint version and it worked just fine. Not sure what I’m doing wrong do I need he U1 firmware? It’s been a long time so I can’t remember
GrandMstrBud said:
I’ve done it on the S8 I had the S8U and flashed to the sprint version and it worked just fine. Not sure what I’m doing wrong do I need he U1 firmware? It’s been a long time so I can’t remember
Click to expand...
Click to collapse
No, U1 *is* what you purchased, if you got the unlocked model. Did you do everything I said, including inserting a Sprint SIM and watching for the reboot prompt?
Yes I flashed all 5 files and left the sprint SIM in there. The boot loader didn’t change to the sprint logo either like it did on the S8. Maybe the files from the samfirm app are not for sprint I don’t know but for region I put in SPR just like I did with the S8 or maybe I got them from uodato I can’t remember honestly
---------- Post added at 11:31 PM ---------- Previous post was at 11:28 PM ----------
SamFirm v0.3.6.0
Checking firmware for SM-G960U1/SPR/G960U1UEU1ARBG/G960U1OYM1ARBG/G960U1UEU1ARBG/G960U1UEU1ARBG
Model: SM-G960U1
Version: G960U1UEU1ARBG/G960U1OYM1ARBG/G960U1UEU1ARBG/G960U1UEU1ARBG
OS: Oreo(Android 8.0.0)
Filename: SM-G960U1_1_20180228143240_rjycp5j0hq_fac.zip.enc4
Size: 3701765232 bytes
LogicValue: 1d0ttjz7md60l2p1
Checking firmware for SM-G960U/SPR/G960USQU1ARBG/G960UOYN1ARBG/G960USQU1ARBG/G960USQU1ARBG
Error: Could not send BinaryInform. Status code 200/400
Request was invalid. Are you sure the input data is correct?
Checking firmware for SM-G960U/SPR/G960USQU1ARB7/G960UOYN1ARB7/G960USQU1ARB7/G960USQU1ARB7
Model: SM-G960U
Version: G960USQU1ARB7/G960UOYN1ARB7/G960USQU1ARB7/G960USQU1ARB7
OS: Oreo(Android 8.0.0)
Filename: SM-G960U_1_20180212190313_ut86u59ymj_fac.zip.enc4
Size: 4130493888 bytes
LogicValue: d9mn8e5rcebun1km
GrandMstrBud said:
Yes I flashed all 5 files and left the sprint SIM in there. The boot loader didn’t change to the sprint logo either like it did on the S8. Maybe the files from the samfirm app are not for sprint I don’t know but for region I put in SPR just like I did with the S8 or maybe I got them from uodato I can’t remember honestly
Click to expand...
Click to collapse
As long as you flashed USERDATA_SPR, that's what contains the carrier customizations. If that alone didn't do it, and if you didn't get the reboot prompt afterwards, then it might not be possible
I think the problem are these files are wrong/not the full conversion.
In my post with the links I put above I found the following.
http://samsung-updates.com/details/122078//SM-G960U1/SPR/G960U1UEU1ARBG.html - This one has U1 in name but states SPR, this seems to match these exactly.
Problem with this is that means it is U1 firmware with SPR user data. This means your bootup logo would NOT change to sprint because it's not the full sprint package which means other FW tweaks carrier specific would not be included, only userdata which would require a factory reset to possibly see by itself.
The one the OP found seems to be just the normal U1 firmwares with the data part different only, thus your boot logo etc. would not change because it's the same one and not actually the sprint one.
We actually would need this one:
http://samsung-updates.com/details/121907/Galaxy_S9_SM-G960U/SM-G960U/SPR/G960USQU1ARB7.html
Oddly they both say Feb security patch yet are different FW version, BUT the model in this one is NOT the U1.
I could be wrong but I think this is the issue but no way to confirm since I can't get these other files...
Related
Hi.
I need to remove all Bloatware, from my Note9
I think one way to do it, is installing the N960U1 Firmware (USA unbranded)
Reading on the Internet and watching videos on YouTube, I obtained the following procedure:
My Note9:
Model: SM-N960U (AT&T)
FW: N960USQS1ARI5
1- Flash Stock Firmware (N960USQS1ARI5) and make a Wipe Data/Factory Reset
2- Flash CSC from Firmware (N960U1UEU1ARJ5)
3- Flash COMBINATION File (COMBINATION_FAC_FA81_N960USQU1ARG4)
Enter - Menu - Factory IME
Press *#243203855#
Select CSC = XAA (in my case)
Reboot
4- In ADB Shell, enter the following command: echo "XAA" > /efs/imei/mps_code.dat
5- Flash Stock Firmware (N960U1UEU1ARJ5)
6- Wipe Data/Factory Reset
7- Done
This is a summary procedure (without details), but...It is right?
I have a doubt with step 4...
Why is it done?
Is it necessary to do it?
Thank you.
Flashing stock firmware isn't going to help, there will be no Samsung provided Firmware without the bloat.
To remove the bloat, it's actually much easier than before, thanks to these recent versions of Android.
All you need to do is open an ADB Shell and paste in the contents of the quoted text in the first post in this thread. This will disable almost all bloat but personally, there are a couple parts of the bloat I like to keep, so I omit a few of the lines.
What bloatware are you wanting to remove?
Mr. Orange 645 said:
What bloatware are you wanting to remove?
Click to expand...
Click to collapse
Among others, the Operator (AT&T).
willhemmens said:
Flashing stock firmware isn't going to help, there will be no Samsung provided Firmware without the bloat.
To remove the bloat, it's actually much easier than before, thanks to these recent versions of Android.
All you need to do is open an ADB Shell and paste in the contents of the quoted text in the first post in this thread. This will disable almost all bloat but personally, there are a couple parts of the bloat I like to keep, so I omit a few of the lines.
Click to expand...
Click to collapse
I agree with you, "Flashing stock firmware is not going to help"...but, I will change from custom to Operator to un-customized.
and Maybe later, the list (Galaxy Note 9 Bloatware Removal Thread) that you mention can be shorten a little more.
hasbrone said:
Among others, the Operator (AT&T).
Click to expand...
Click to collapse
All you need to do is flash the U1 firmware with patched ODIN. All those other steps are unnecessary.
Mr. Orange 645 said:
All you need to do is flash the U1 firmware with patched ODIN. All those other steps are unnecessary.
Click to expand...
Click to collapse
So...
It will not be necessary to make the change of CSC?
The CSC ATT will remain and only the customization will be eliminated?
Thank you.
hasbrone said:
So...
It will not be necessary to make the change of CSC?
The CSC ATT will remain and only the customization will be eliminated?
Thank you.
Click to expand...
Click to collapse
Correct. Just flash the U1 firmware. If you're on ATT theres no reason to mess with the CSC. You wouldn't want to anyway.
Mr. Orange 645 said:
Correct. Just flash the U1 firmware. If you're on ATT theres no reason to mess with the CSC. You wouldn't want to anyway.
Click to expand...
Click to collapse
Yep, I flashed the U1 non-carrier specific firmware with the patched Odin yesterday. Absolutely no problems, ATT 4G LTE still works (even a little faster than before), Wifi Hotspot now works, and no ATT bloatware anymore (I re-installed Visual Voicemail from ATT, that is the only ATT specific app i have now). I even got two or three OTA updates for security right away.
keredini said:
Yep, I flashed the U1 non-carrier specific firmware with the patched Odin yesterday. Absolutely no problems, ATT 4G LTE still works (even a little faster than before), Wifi Hotspot now works, and no ATT bloatware anymore (I re-installed Visual Voicemail from ATT, that is the only ATT specific app i have now). I even got two or three OTA updates for security right away.
Click to expand...
Click to collapse
Thanks.
What is the model of your Note9?, before flashing the U1 Firmware...
What Firmware of U1 flashed?
Can you share your "Service provider SW ver."? (see the attachment in my case ATT/ATT/ATT), Please!.
hasbrone said:
Thanks.
What is the model of your Note9?, before flashing the U1 Firmware...
Can you share your "Service provider SW ver."? (see the attachment in my case ATT/ATT/ATT), Please!.
Click to expand...
Click to collapse
Attached is what it shows now
keredini said:
Attached is what it shows now
Click to expand...
Click to collapse
...and What model is your Note9?, What Firmware of the Note9 U1 you flashed?
Thanks.
hasbrone said:
...and What model is your Note9?, What Firmware of the Note9 U1 you flashed?
Thanks.
Click to expand...
Click to collapse
Your answers are in his photo he attached. He obviously has the ATT carrier-branded Note 9 model N960U, same as you.
He flashed software build N960U1UEU1ARJ5.
All of this can easily be found in this forum. You are seriously making this WAY more complicated than it really is.
Mr. Orange 645 said:
What bloatware are you wanting to remove?
Click to expand...
Click to collapse
Google Play Store.
hasbrone said:
Hi.
I need to remove all Bloatware, from my Note9
I think one way to do it, is installing the N960U1 Firmware (USA unbranded)
Reading on the Internet and watching videos on YouTube, I obtained the following procedure:
My Note9:
Model: SM-N960U (AT&T)
FW: N960USQS1ARI5
1- Flash Stock Firmware (N960USQS1ARI5) and make a Wipe Data/Factory Reset
2- Flash CSC from Firmware (N960U1UEU1ARJ5)
3- Flash COMBINATION File (COMBINATION_FAC_FA81_N960USQU1ARG4)
Enter - Menu - Factory IME
Press *#243203855#
Select CSC = XAA (in my case)
Reboot
4- In ADB Shell, enter the following command: echo "XAA" > /efs/imei/mps_code.dat
5- Flash Stock Firmware (N960U1UEU1ARJ5)
6- Wipe Data/Factory Reset
7- Done
This is a summary procedure (without details), but...It is right?
I have a doubt with step 4...
Why is it done?
Is it necessary to do it?
Thank you.
Click to expand...
Click to collapse
what others said is correct, just flash u1 in modified odin and ull be on xaa with little or no bloat..
the dialer code is nice to do it on the fly.. u can use it to only apply network settings or change the brand or both..
the adb commands are not needed at all.. i also am pretty sure they dont work at all (permission denied) on note 9..
keep in mind pie builds are different.. i dont think it matters what u flash, it changes based on sim inserted.. the csc code also doesnt work on latest pie builds so no way to change it up unless u put in another sim card.. i think one of the earlier pie builds i was on the csc dialer code worked..
on latest pie build i notice a new line in dl mode, anyone by chance know what "KG Status" is?
Mr. Orange 645 said:
Your answers are in his photo he attached. He obviously has the ATT carrier-branded Note 9 model N960U, same as you.
He flashed software build N960U1UEU1ARJ5.
All of this can easily be found in this forum. You are seriously making this WAY more complicated than it really is.
Click to expand...
Click to collapse
Hi.
Do you recommend flash the Firmware with these options?
Re-Partition (with PIT file)
Nand Erase All
When is it recommended to use those options?
Thank you.
hasbrone said:
Hi.
Do you recommend flash the Firmware with these options?
Re-Partition (with PIT file)
Nand Erase All
When is it recommended to use those options?
Thank you.
Click to expand...
Click to collapse
I recommend you leave all checkboxes in patched Odin exactly as you found them and touch nothing.
hasbrone said:
Hi.
Do you recommend flash the Firmware with these options?
Re-Partition (with PIT file)
Nand Erase All
When is it recommended to use those options?
Thank you.
Click to expand...
Click to collapse
Don't check those unless you know what you're doing.
U1 firmware and Patched Odin
Mr. Orange 645 said:
All you need to do is flash the U1 firmware with patched ODIN. All those other steps are unnecessary.
Click to expand...
Click to collapse
Can you please explain in detail the steps, and also from where to get the U1 firmware?
Am also on AT&T.
thanks
tahrang said:
Can you please explain in detail the steps, and also from where to get the U1 firmware?
Am also on AT&T.
thanks
Click to expand...
Click to collapse
Search here through the forums. The files are linked in a few threads, as are the instructions.
You could just Google ODIN instructions and find it.
As per the title, bought an unlocked G970U instead of U1 by mistake. Should I expect a Verizon splash screen greeting me in the bootloader? I don't wanna see any branding anywhere in my phone. Can I get rid of any of that flashing U1 firmware?
redsmith said:
As per the title, bought an unlocked G970U instead of U1 by mistake. Should I expect a Verizon splash screen greeting me in the bootloader? I don't wanna see any branding anywhere in my phone. Can I get rid of any of that flashing U1 firmware?
Click to expand...
Click to collapse
Which G970U phone you have bought. If it was a Verizon branded, then their logo should greet you If you bought T-Mobile variant, then its logo will be present while booting the phone. Flashing is possible and it depends which carrier you have. Also don't you have the phone in hand yet?
Charkatak said:
Which G970U phone you have bought. If it was a Verizon branded, then their logo should greet you If you bought T-Mobile variant, then its logo will be present while booting the phone. Flashing is possible and it depends which carrier you have. Also don't you have the phone in hand yet?
Click to expand...
Click to collapse
Yeah, the phone hasn't arrived yet. In the pictures I can see the box has no carrier logo, but I'm guessing it's Verizon because I haven't seen a Verizon branded box yet. Also, the box definitely says G970U.
I've been a Nexus/Pixel user all my flashing life, so I'm well versed in the fastboot/adb dark arts. How does this compare to Odin? There are so many new terms that I'm still trying to understand: CSC, HOME CSC, USERDATA, etc. Is there any guide I can follow to flash my incoming phone to U1 firmware?
redsmith said:
Yeah, the phone hasn't arrived yet. In the pictures I can see the box has no carrier logo, but I'm guessing it's Verizon because I haven't seen a Verizon branded box yet. Also, the box definitely says G970U.
I've been a Nexus/Pixel user all my flashing life, so I'm well versed in the fastboot/adb dark arts. How does this compare to Odin? There are so many new terms that I'm still trying to understand: CSC, HOME CSC, USERDATA, etc. Is there any guide I can follow to flash my incoming phone to U1 firmware?
Click to expand...
Click to collapse
The T-Mobile version is also G970U, so it can be pretty much any carrier. USERDATA file is present in carrier firmware, if you flash unlocked firmware you won't need/have this file.
Link below is for S8, but works for S10 as well. Of course you would need to use firmware files for your phone. I would also use instructions under "Flashing standard firmware" first using Standard Odin. If you get an error when staring to flash, then use (Patched) Prince Comsy's Odin.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817
Charkatak said:
The T-Mobile version is also G970U, so it can be pretty much any carrier. USERDATA file is present in carrier firmware, if you flash unlocked firmware you won't need/have this file.
Link below is for S8, but works for S10 as well. Of course you would need to use firmware files for your phone. I would also use instructions under "Flashing standard firmware" first using Standard Odin. If you get an error when staring to flash, then use (Patched) Prince Comsy's Odin.
https://forum.xda-developers.com/gal...rrier-t3625817
Click to expand...
Click to collapse
Thanks a lot. One last question. I'm based in Mexico (we only get Exynos here), so I got a U version to get the Snapdragon CPU. Obviously I don't want any US carrier branding/blotware in the phone since I couldn't benefit whatsoever from it. What about OTA's, though? Will I get them whenever Samsung releases an update for U1? Or will that depend on my carrier? Should I update monthly using Odin? Do I have to factory reset? So many questions :silly:
The link you provided doesn't work, btw. But I've since found some other Odin guides. Thanks!
redsmith said:
Thanks a lot. One last question. I'm based in Mexico (we only get Exynos here), so I got a U version to get the Snapdragon CPU. Obviously I don't want any US carrier branding/blotware in the phone since I couldn't benefit whatsoever from it. What about OTA's, though? Will I get them whenever Samsung releases an update for U1? Or will that depend on my carrier? Should I update monthly using Odin? Do I have to factory reset? So many questions :silly:
The link you provided doesn't work, btw. But I've since found some other Odin guides. Thanks!
Click to expand...
Click to collapse
I corrected the link in case you need it.
To answer OTA question: I had unlocked U1 model of S8 and when I flashed it with T-Mobile firmware then my phone got OTA from T-Mobile when they release it. I assume if you have carrier branded phone and flash it with U1(XAA) firmware then most likely your phone will get updates when Samsung releases them. You won't have to use Odin every time there is an update if you flash properly. Also, it would be advisable to flash using CSC file instead of HOME CSC, so your phone would be wiped. It is because you change firmware and want your software to be fully compatible. After flashing and you check your phone's software update and see that is shows "not compatible or something similar", then I would just suggest you to do "reset"(factory reset) from setting and after you setup your phone, that message will disappear. Also don't do any software update before flashing as you phone may get a fresher firmware than the one you might be trying to flash.
1) Check your current phone firmware
2) Download firmware you want, but if you can, get the firmware that is a previous one than the current one, so you will check to see how your phone gets OTAs
3) Flash using Odin
4) After that disconnect and let the phone do its thing
5) Set it up and check to see if software update section in settings don't give you any messages such as the one I outlined above, if it does, just factory reset the phone
For those who aren't already aware, G991U is the model number of all of the US carrier versions of the S21. The G991U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100% interchangeable among these models: any U or U1 firmware version can be flashed to any U or U1 device at any time, assuming that you're not trying to downgrade the bootloader. A "U to U" or "U1 to U1" flash does not require a factory reset, but changing from one firmware to the other will require one. Also, U firmware is identical for the 4 base files (AP, BL, CP, CSC) for each individual build, no matter which carrier it comes from. So if you download 2 different carrier versions of the exact same build, the 4 base files will be identical. Where the firmware differs is in the USERDATA file - that's where the carrier bloatware and customizations reside.
Manual Odin flashing is designed for those who:
- want to manually update to a newer version of U firmware on their U device, either because they don't want to wait for their carrier's OTA or because OTAs aren't working on their device, or a different carrier got a new feature/patch before they did
- want to flash U1 firmware to their U device
- want to convert from U1 firmware to carrier U firmware
- want to convert from one carrier's U firmware (with all apps and bloatware) to a different carrier's U firmware (with all apps and bloatware)
For those who aren't already aware, anyone can now download firmware for almost any Samsung device any time that they want, via the various firmware download tools posted here on XDA like SamFirm or Frija. There are threads and info about them here on XDA so I won't waste time explaining - do a search if you're not already familiar with these tools. But they only provide whatever the latest/newest/current version is - nothing older. I pay for a subscription to a site that gets the official releases (usually) before they hit the firmware download tools, so that's where my files come from.
This is not a "beginner's guide to Odin flashing" -type post/thread, so I won't list basic, step-by-step flashing instructions. My threads are geared towards those who already know what they're doing. If you're new to manually flashing Samsung firmware (or haven't done it in a long time), I recommend you consult one of those "beginner's" guides- there are tons of them here on XDA.
Happy flashing!
U firmware: https://www.androidfilehost.com/?w=files&flid=322084
U1 firmware: https://www.androidfilehost.com/?w=files&flid=322085
Notes:
- DON'T QUOTE THE OP WHEN YOU REPLY, kthx
- I have lots of threads just like this one for other Samsung flagships, if it interests you. For those who have already made use of my previous threads for a different device and are upgrading to an S21, welcome back
- My zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
- it's quite time consuming to download the files, zip them up, and upload them to AFH. And, I do threads like this for every single Sx and Note x model - so I won't be uploading every single version. The only full builds that I upload are ones where I get access to a new bootloader and/or Android version early, before they hit the firmware download tools.
- My naming method for folders on AFH is: build - bootloader - Android version
So "SAT - 1 - 9.0" means the full build number ends in SAT, it's bootloader version 1, and it's Android 9.0. When bootloader and Android versions increment, the first build to have those changes will have its folder notated appropriately.
- HOME CSC file keeps data intact; using the other CSC will wipe data. Flashing USERDATA will also wipe data.
- Since AT&T doesn't allow their firmware to be publicly available (for any of their devices), I'll try to always upload at least one USERDATA per bootloader increment for AT&T (and Cricket, if they get this model). I'll also upload any full builds if AT&T is the only carrier to get that specific build, because you won't be able to find the files anywhere else.
- For identifying USERDATAS, and to know what region/CSC to use in the firmware download tools if you're downloading yourself:
AIO = Cricket (not available via firmware download tools)
ATT = AT&T (not available via firmware download tools)
BST = Boost Mobile
CCT = Xfinity Mobile (Comcast)
CHA = Spectrum Mobile (Charter)
SPR = Sprint
TMB = T-Mobile
TMK = Metro PCS
USC = US Cellular
VZW = Verizon (available via firmware download tools, but Manual Entry is required - Auto will not work)
XAA = U1 firmware
- the correct procedure for switching from one carrier's firmware to another is:
1. Flash full U1 firmware package including non HOME CSC
2. Upon boot, insert a SIM of the carrier whose firmware you want
3. Watch for the popup that says "reboot to apply new carrier settings" etc, and do it
4. After that restart completes, reboot back to Download mode and flash the full U firmware package, with the USERDATA file of the carrier whose firmware you want
Initial U firmware and AT&T USERDATA are posted, along with U1 firmware. U firmware is not yet accessible in the firmware download tools like SamFirm and Frija, but if anyone wants a different carrier's USERDATA (for flashing bloatware to a U1 device or for converting a U device from one carrier's bloatware to a different one), let me know and I'll get it for you
Thanks for the firmware links!
Odin blocks flashing from U to U1 or U1 to U. To successfully flash: Use the patched/modded odin found here.
Patched Odin 3.13.1
For those looking for a modified, modded, or patched odin that is a newer build than all the fake and renamed prince comsy 3.12.3 versions floating around. I patch recent Odin versions to offer similar functionality to the princecomsy; in that...
forum.xda-developers.com
realbbb
Sinker Slime
Anyone from T-Mobile move to u1? If so better or worse. Not sure if I should make the move. Thanks
Is the Verizon userdata available? I have an ATT version and I want to switch to Verizon.
Thanks.
N0v1c3 said:
Is the Verizon userdata available? I have an ATT version and I want to switch to Verizon.
Thanks.
Click to expand...
Click to collapse
U firmware is available via the various firmware download tools like SamFirm and Frija
Hey guys, I'm curious if anybody could help me fix an issue I'm having with flashing. I'm trying to flash from the U variant to the U1 but it seems to be csc locked to TMB. I've tried multiple firmwares, pulling the sim out before flashing and even flashing back and forth from U to U1 I can't seem to get the carrier update pop-up at all. I'm kinda at a loss and would appreciate any help you guys could give me
braxf said:
Hey guys, I'm curious if anybody could help me fix an issue I'm having with flashing. I'm trying to flash from the U variant to the U1 but it seems to be csc locked to TMB. I've tried multiple firmwares, pulling the sim out before flashing and even flashing back and forth from U to U1 I can't seem to get the carrier update pop-up at all. I'm kinda at a loss and would appreciate any help you guys could give me
Click to expand...
Click to collapse
Are you saying the service provider codes stay as TMB/TMB/TMB, even after you flash U1?
Yes the csc is locked to TMB for some reason. I did the full csc non home flash several times with no luck
braxf said:
Yes the csc is locked to TMB for some reason. I did the full csc non home flash several times with no luck
Click to expand...
Click to collapse
S21 Ultra users are reporting the same thing. Not sure what's going on with T-Mo this time
Yes I saw the thread. Do you think a repartition could possibly work? It's much more in depth but it would be a completely clean install
braxf said:
Yes I saw the thread. Do you think a repartition could possibly work? It's much more in depth but it would be a completely clean install
Click to expand...
Click to collapse
If you know how to repartition it, go for it
I don't, I read that you need a pit code. How would you go about getting that?
braxf said:
I don't, I read that you need a pit code. How would you go about getting that?
Click to expand...
Click to collapse
If you mean a PIT file, that's already included in the CSC file. So that is flashed, if you flash that file
So it's relatively the same concept but you use the csc file in the pit section?
braxf said:
So it's relatively the same concept but you use the csc file in the pit section?
Click to expand...
Click to collapse
Huh? No. The only thing that can go in the pit section is the pit file
Oh I misunderstood, you're saying when you flash the csc it automatically flashes that pit file?
braxf said:
Oh I misunderstood, you're saying when you flash the csc it automatically flashes that pit file?
Click to expand...
Click to collapse
Yep
Update: I'm completely lost. I downloaded the Canadian firmware which gave me the xac csc then I flashed back to U1 which also updated to Xaa. But I still showed only t-mobile n41 and 71 bands so I flashed back to U with Verizon bloatware and now I have a Verizon U firmware with xaa csc and still only showing t-mobile bands
braxf said:
Update: I'm completely lost. I downloaded the Canadian firmware which gave me the xac csc then I flashed back to U1 which also updated to Xaa. But I still showed only t-mobile n41 and 71 bands so I flashed back to U with Verizon bloatware and now I have a Verizon U firmware with xaa csc and still only showing t-mobile bands
Click to expand...
Click to collapse
I don't guarantee that any particular bands will work on any particular firmware. Also, carriers don't use every single band in every single area
For those who aren't already aware, G998U is the model number of all of the US carrier versions of the S21 Ultra. The G998U1 is the model number of the same device, but sold by Samsung SIM unlocked and with no carrier bloatware. Firmware is 100% interchangeable among these models: any U or U1 firmware version can be flashed to any U or U1 device at any time, assuming that you're not trying to downgrade the bootloader. A "U to U" or "U1 to U1" flash does not require a factory reset, but changing from one firmware to the other will require one. Also, U firmware is identical for the 4 base files (AP, BL, CP, CSC) for each individual build, no matter which carrier it comes from. So if you download 2 different carrier versions of the exact same build, the 4 base files will be identical. Where the firmware differs is in the USERDATA file - that's where the carrier bloatware and customizations reside.
Manual Odin flashing is designed for those who:
- want to manually update to a newer version of U firmware on their U device, either because they don't want to wait for their carrier's OTA or because OTAs aren't working on their device, or a different carrier got a new feature/patch before they did
- want to flash U1 firmware to their U device
- want to convert from U1 firmware to carrier U firmware
- want to convert from one carrier's U firmware (with all apps and bloatware) to a different carrier's U firmware (with all apps and bloatware)
For those who aren't already aware, anyone can now download firmware for almost any Samsung device any time that they want, via the various firmware download tools posted here on XDA like SamFirm or Frija. There are threads and info about them here on XDA so I won't waste time explaining - do a search if you're not already familiar with these tools. But they only provide whatever the latest/newest/current version is - nothing older. I pay for a subscription to a site that gets the official releases (usually) before they hit the firmware download tools, so that's where my files come from.
This is not a "beginner's guide to Odin flashing" -type post/thread, so I won't list basic, step-by-step flashing instructions. My threads are geared towards those who already know what they're doing. If you're new to manually flashing Samsung firmware (or haven't done it in a long time), I recommend you consult one of those "beginner's" guides- there are tons of them here on XDA.
Happy flashing!
U firmware: https://www.androidfilehost.com/?w=files&flid=322089
U1 firmware: https://www.androidfilehost.com/?w=files&flid=322090
Notes:
- DON'T QUOTE THE OP WHEN YOU REPLY, kthx
- I have lots of threads just like this one for other Samsung flagships, if it interests you. For those who have already made use of my previous threads for a different device and are upgrading to an S21, welcome back
- My zips are compressed extra small for space and bandwidth savings. The default Windows extractor can't handle it, so you'll need a 3rd party tool like 7zip, WinRAR, etc
- it's quite time consuming to download the files, zip them up, and upload them to AFH. And, I do threads like this for every single Sx and Note x model, so I won't be uploading every single version. The only full builds that I upload are ones where I get access to a new bootloader and/or Android version early, before they hit the firmware download tools.
- My naming method for folders on AFH is: build - bootloader - Android version
So "SAT - 1 - 9.0" means the full build number ends in SAT, it's bootloader version 1, and it's Android 9.0. When bootloader and Android versions increment, the first build to have those changes will have its folder notated appropriately.
- HOME CSC file keeps data intact; using the other CSC will wipe data. Flashing USERDATA will also wipe data.
- Since AT&T doesn't allow their firmware to be publicly available (for any of their devices), I'll try to always upload at least one USERDATA per bootloader increment for AT&T (and Cricket, if they get this model). I'll also upload any full builds if AT&T is the only carrier to get that specific build, because you won't be able to find the files anywhere else.
- For identifying USERDATAS, and to know what region/CSC to use in the firmware download tools if you're downloading yourself:
AIO = Cricket (not available via firmware download tools)
ATT = AT&T (not available via firmware download tools)
BST = Boost Mobile
CCT = Xfinity Mobile (Comcast)
CHA = Spectrum Mobile (Charter)
DSH = Dish Network
SPR = Sprint
TMB = T-Mobile
TMK = Metro PCS
USC = US Cellular
VZW = Verizon (available via firmware download tools, but Manual Entry is required - Auto will not work)
XAA = U1 firmware
- the correct procedure for switching from one carrier's firmware to another carrier's firmware is:
1. Flash full U1 firmware package including non HOME CSC
2. Upon boot, insert a SIM of the carrier whose firmware you want
3. Watch for the popup that says "reboot to apply new carrier settings" etc, and do it
4. After that restart completes, reboot back to Download mode and flash the full U firmware package, with the USERDATA file of the carrier whose firmware you want
Flashing the U1 right away when my Devices arrives
Polishow said:
Flashing the U1 right away when my Devices arrives
Click to expand...
Click to collapse
That's why I post it
That, and so that anyone interested can dig through the firmware for anything interesting.
I'm uploading in order of model number, so Ultra is last unfortunately - and my upload speed is only 10 Mbps. Should be up in the next few hours though
Initial U firmware and AT&T USERDATA are posted, along with U1 firmware. U firmware is not yet accessible in the firmware download tools like SamFirm and Frija, but if anyone wants a different carrier's USERDATA (for flashing bloatware to a U1 device or for converting a U device from one carrier's bloatware to a different one), let me know and I'll get it for you
Are anyone know if Is the version SM-998U or SM-998U1 have or not dual SIM?
Thanks for doing this ! My phone arrives Wed and of course I wanna flash the U Home CSC to my unlocked U1 device so I can get the AT&T calling features. Are the ones you've uploaded the latest firmwares?
And thanks again for always taking time to do this!!!
Sorry for the possible silly question, but I am coming back to the Galaxy after 4 years on the Pixel and haven't been flashing for a while.
I am getting an Ultra from T-Mobile. If I flash the U1 (to remove the bloat) and then follow the instructions above, it says it will put the carrier files on there. Will that just put the bloat back on? I guess I was wondering if it would make it "stock" going forward. I just wanted to figure that out before I set the phone up since it requires a factory reset. Thanks!
crowax said:
Sorry for the possible silly question, but I am coming back to the Galaxy after 4 years on the Pixel and haven't been flashing for a while.
I am getting an Ultra from T-Mobile. If I flash the U1 (to remove the bloat) and then follow the instructions above, it says it will put the carrier files on there. Will that just put the bloat back on? I guess I was wondering if it would make it "stock" going forward. I just wanted to figure that out before I set the phone up since it requires a factory reset. Thanks!
Click to expand...
Click to collapse
No, that's not what it says - I think you're mis-reading. Flashing U1 removes bloat, period. If you want the bloat gone, you have no need to do anything else other than simply flashing U1 firmware
iBowToAndroid said:
No, that's not what it says - I think you're mis-reading. Flashing U1 removes bloat, period. If you want the bloat gone, you have no need to do anything else other than simply flashing U1 firmware
Click to expand...
Click to collapse
Oh perfect. I checked again after your post and my confusion was at
"the correct procedure for switching from one carrier's firmware to another is". I was thinking it was the procedure to switch from a carrier firmware to any other firmware including U1. So the re-adding of the carrier files didn't make sense.
Thank you very much for your quick answer!
OP Requested my linked deleted
bANONYMOUS said:
Here are links to both Canadian and US official samsung firmwares without bloat
Samsung Official Unlocked Firmware:
Canada = XAC
United States = XAA
Click to expand...
Click to collapse
Go create your own thread if you're going to post links other than the ones in my OP
I do have my own thread about these firmwares, I was just including the Canadian bloat free firmware because you only have the US firmwares. The links are to samfw because they update them regularly so people can get the latest releases where as your links are the current version you linked so if you don't update them then they'll be out of date versions. Do you get paid from your Android File Host links or something? What's the issue? No need to be hostile, just trying to help provide information
EDIT:
Also, when you're flashing between different carrier firmware's, you should only use CSC and not HOME_CSC because keeping the user data sometimes includes the bloat apps preinstalled.
The rule of thumb is if you're CHANGING anything, start fresh with CSC
If you're UPDATING from the same carrier firmware to a newer version, use HOME_CSC.
So for anyone using this guide, it's not recommended to use HOME_CSC when converting over to the bloat free firmware as it's a different carrier release. Not saying it won't work, it's just not recommended, almost like a dirty flash so it could cause stability issues down the road after a few OTA's or something.
bANONYMOUS said:
I do have my own thread about these firmwares, I was just including the Canadian bloat free firmware because you only have the US firmwares.
Click to expand...
Click to collapse
XAC is for model G998W. The title of this thread makes it clear that this is only for models G998U and G998U1. So kindly delete your posts, and keep them in your own thread
Okay, post deleted, but it's probably worth noting that you don't know what the G998W is. Because it's the same phone as the U and U1. During the One UI 3.0 Beta on the S20 Ultra, I flashed G988U on my G988W, and when the beta continued onto the U1, I flashed those firmware files as well. The Canadian S20/S21 is just a non branded T-Mobile with more supported radio bands in the firmware.
If you actually look at the carrier info for the S20 Unlocked U/U1/W firmware, they all say XAC and XAA at the bottom no matter whether it's U/U1/W. They are all the same phone and Samsung even uses the same firmware merged, just different radio bands, and because Canadian radio bands support ALL bands, it makes the W firmware the a merge of both U and U1, so it's actually the better choice from what you have posted because it supports every U/U1/W the best. So your post is relevant to the W models whether you want to accept it or not.
That's why I included a link to the firmware, because it's the same device, same flashing process, completely same procedure, so this thread IS relevant to the W models even if you said U and U1 only, the W is also included in that even if you didn't say it was, doesn't make it true.
Also the only difference between U and U1 is U is unlocked but INCLUDES carrier bloat, U1 is unlocked and has NO carrier bloat.
So, closing info here.
U1 is unlocked, no carrier bloat, US radio bands
U is unlocked, HAS carrier bloat, US radio bands
W is unlocked, no carrier bloat, ALL radio bands
You just need to make sure it's the SM-G998W for AXC and it's the best choice with no bloat.
Just because you clearly didn't know this about the W phones, doesn't mean you gotta get all snappy, I'm just trying to help the community.
bANONYMOUS said:
Okay, post deleted, but it's probably worth noting that you don't know what the G998W is.
Click to expand...
Click to collapse
I'm absolutely very well aware of what W models are. Thanks.
Then why are you mad I included it when it's the same device? I don't get why you're being salty about it. I'm just trying to help out.
bANONYMOUS said:
Then why are you mad I included it when it's the same device? I don't get why you're being salty about it. I'm just trying to help out.
Click to expand...
Click to collapse
1. Not mad at all
2. It's the same device internally, yes. But this thread is about software - not hardware. And the software being discussed is the USA firmware, not the Canadian firmware.
sorry I've also been out of the firmware game for a while too. I have a U1 from Samsung unlocked S21 Ultra and need to put the ATT carrier firmware on it. If I'm reading this right, I'm using Odin and flashing the XAA U1 firmware without a sim, when it reboots and reads updated SIM carrier setting at reboot then I am shutting it down and immediately attempting to install the ATT U1 firmware (all BL, AP, CP, CSC (non HOME CSC)? I don't see where I would select USERDATA but I need the ATT options (was going to exchange it but I got all the incentives)
alfredtv said:
sorry I've also been out of the firmware game for a while too. I have a U1 from Samsung unlocked S21 Ultra and need to put the ATT carrier firmware on it. If I'm reading this right, I'm using Odin and flashing the XAA U1 firmware without a sim, when it reboots and reads updated SIM carrier setting at reboot then I am shutting it down and immediately attempting to install the ATT U1 firmware (all BL, AP, CP, CSC (non HOME CSC)? I don't see where I would select USERDATA but I need the ATT options (was going to exchange it but I got all the incentives)
Click to expand...
Click to collapse
1. If your phone is already running U1 firmware, there's no need to flash it again
2. If you don't see the USERDATA slot, you have a very old version of Odin
It is running U1 but I need the ATT bloatware.....I'm on FirstNet and the only way it will connect correctly is if it's running the ATT built in config files. So I'm trying to go from clean to dirty!!
I have a U.S. Unlocked (snapdragon) S21 Ultra that I'm currently using on AT&T (SM-G998U1). Using the dialer method, I obtained my CSC of OYM. Frija will not recognize OYM which I guess means multiple CSCs are supported? I don't want to install carrier-branded software. I tried the CSC code of USC and Frija accepted it. Is this the right code to use? I don't want to install the wrong firmware and brick my phone. Any guidance will be appreciated
rmc6901 said:
I have a U.S. Unlocked (snapdragon) S21 Ultra that I'm currently using on AT&T (SM-G998U1). Using the dialer method, I obtained my CSC of OYM. Frija will not recognize OYM which I guess means multiple CSCs are supported? I don't want to install carrier-branded software. I tried the CSC code of USC and Frija accepted it. Is this the right code to use? I don't want to install the wrong firmware and brick my phone. Any guidance will be appreciated
Click to expand...
Click to collapse
So if you don't want to install AT&T Firmware then the best option is to stick with the USC Firmware which is the software on your device. What's the motivation to replace your firmware with the same firmware already on your device? Your Primary CSC can't be changed, it will always be USC. Changing firmware with a different CSC typically causes more problems than it solves. OYM means it's a Multi-CSC phone, USC is your actual Primary CSC. Whatever service provider's SIM you use will be the Active CSC. One drawback in Unlocked Samsung phones is they are the last variant to receive OTA Updates.
varcor said:
So if you don't want to install AT&T Firmware then the best option is to stick with the USC Firmware which is the software on your device. What's the motivation to replace your firmware with the same firmware already on your device? Your Primary CSC can't be changed, it will always be USC. Changing firmware with a different CSC typically causes more problems than it solves. OYM means it's a Multi-CSC phone, USC is your actual Primary CSC. Whatever service provider's SIM you use will be the Active CSC. One drawback in Unlocked Samsung phones is they are the last variant to receive OTA Updates.
Click to expand...
Click to collapse
The motivation is I'm tired of waiting a month after release of updates to get it on my device. This particular update is supposed to offer camera improvements of which I'm anxious to see. No, I don't want to change CSC or carrier software. I just wanted to make sure I was using the correct code for my device. I'll give it a try shortly and thanks for your help.
rmc6901 said:
The motivation is I'm tired of waiting a month after release of updates to get it on my device. This particular update is supposed to offer camera improvements of which I'm anxious to see. No, I don't want to change CSC or carrier software. I just wanted to make sure I was using the correct code for my device. I'll give it a try shortly and thanks for your help.
Click to expand...
Click to collapse
I got it updated. The zip file app I was using (IZArc) kept returning an error on the AP file. I switched to 7-zip and problem solved. I got a pass from Odin and phone rebooted into the OS so all is good. It should go fast and easy next time. Thanks again varcor for your help.
That's great, next time you're looking to see if there's an update try Smartswitch. Much easier than flashing firmware.