Links for AT&T USERDATAs

[iBowToAndroid]

I know these are much tougher to find - can't be obtained from SamFirm or SamMobile. So I'll be uploading one for each bootloader version. Firmware is universal on U models so you can use the other 4 files from any other matching collection. Can probably even mix and match builds, if you can't find files for the exact same build. Can't mix and match bootloaders though, so the other 4 files have to at least be from the same bootloader.

USERDATAs for any other CSCs can be gotten from SamFirm - for the latest version. If you need an old USERDATA for a CSC that's not commonly found on SamMobile (ACG, LRA, TFN, etc), let me know and I can probably get it.

https://www.androidfilehost.com/?w=files&flid=283206

 

[zeiguy17]

Can I use the userdata file for G55USQU5CRF5 with the other four files being from the build G55USQS5CRF5? I'm not sure what the difference between SQU and SQS is, and if it is significant. Thank you!

 

[iBowToAndroid]

Can I use the userdata file for G55USQU5CRF5 with the other four files being from the build G55USQS5CRF5? I'm not sure what the difference between SQU and SQS is, and if it is significant. Thank you!

Yes, you can. There basically is no difference

 

[sean8102]

I'm begging someone to help me. I flashed my AT&T S8+ to the G955U1 unlocked firmware, then got accepted into the beta and installed it via OTA update. I now want to go back to a AT&T rom so I can have stuff like Wi-fi calling and VOLTE back. I've tried so many different roms with ATT userdata and they all fail with ODIN. I'm guessing its something to do with bootloader version. Is there any way I can get back to a AT&T ROM from the G955U1 Pie beta firmware.

 

[iBowToAndroid]

I'm begging someone to help me. I flashed my AT&T S8+ to the G955U1 unlocked firmware, then got accepted into the beta and installed it via OTA update. I now want to go back to a AT&T rom so I can have stuff like Wi-fi calling and VOLTE back. I've tried so many different roms with ATT userdata and they all fail with ODIN. I'm guessing its something to do with bootloader version. Is there any way I can get back to a AT&T ROM from the G955U1 Pie beta firmware.

Well the beta has to still be Bootloader 5, so just flash any 5 build

 

[sean8102]

Well the beta has to still be Bootloader 5, so just flash any 5 build

I finally managed to get Odin to flash a ROM. All of them I tried were bootloader 5. But now the problem is I cant get OTA updates. My phone is back to being a AT&T one with the AT&T boot screen and wi-fi calling etc etc. But everytime I check for updates it says its up to date even though I have CRL1 and the latest AT&T firmware is U5CSA4. I would update form SD card but that wipes the phone every time. I had to do that 4 or 5 times just to get to CRL1 because it kept saying my phone is up to date.

 

[iBowToAndroid]

I finally managed to get Odin to flash a ROM. All of them I tried were bootloader 5. But now the problem is I cant get OTA updates. My phone is back to being a AT&T one with the AT&T boot screen and wi-fi calling etc etc. But everytime I check for updates it says its up to date even though I have CRL1 and the latest AT&T firmware is U5CSA4. I would update form SD card but that wipes the phone every time. I had to do that 4 or 5 times just to get to CRL1 because it kept saying my phone is up to date.

1. AT&T phones don't OTA if you're using a carrier other than AT&T - even their own MVNOs

2. If you are using AT&T, OTA rollouts are staged. It just came out less than a week ago, so your phone might not have been green-lit yet

3. Both 1 and 2 are really irrelevant anyways, because you can just Odin flash any update you want. Using HOME CSC will ensure data isn't wiped

 

[sean8102]

1. AT&T phones don't OTA if you're using a carrier other than AT&T - even their own MVNOs

2. If you are using AT&T, OTA rollouts are staged. It just came out less than a week ago, so your phone might not have been green-lit yet

3. Both 1 and 2 are really irrelevant anyways, because you can just Odin flash any update you want. Using HOME CSC will ensure data isn't wiped

I am using AT&T. I know rollouts are staged but I've never had it tell me my phone is up to date when it is 7 versions behind which it was because I had to start at CRF5 since that is the newest AT&T Userdata file I could find. I checked after doing the update from SD card method each time, making sure to put the date on my phone forward since AT&T only lets you manually check once a day. No matter what it said I was up to date despite being several versions behind.

I'm gonna try using Odin to flash one more time because not being able to do OTA update is a HUGE PIA. Dose it matter that the user data is called "ATT_G955USQU5CRF5" despite the firmware being USQS because I couldn't find a USQUCRF5 and besides AT&T's update history shows USQSCRF5 anyways. What I did was downloaded a verizon G955USQS5CRF5 ODIN file (because for some reason AT&T odin files are really hard to find) and replaced the Verizon user data with the AT&T one.

Also if I flash say CSA4 verizon with the verizon user data the put my AT&T sim card in it dose it not download all the the carrier bloatware and what not? dose that basically turn it back into a AT&T phone? or could I take that CSA4 and flash it with the CRF5 AT&T user data?

 

[iBowToAndroid]

I am using AT&T. I know rollouts are staged but I've never had it tell me my phone is up to date when it is 7 versions behind which it was because I had to start at CRF5 since that is the newest AT&T Userdata file I could find. I checked after doing the update from SD card method each time, making sure to put the date on my phone forward since AT&T only lets you manually check once a day. No matter what it said I was up to date despite being several versions behind.

I'm gonna try using Odin to flash one more time because not being able to do OTA update is a HUGE PIA. Dose it matter that the user data is called "ATT_G955USQU5CRF5" despite the firmware being USQS because I couldn't find a USQSCRF5 and besides AT&T's update history shows USQSCRF5 anyways. What I did was downloaded a verizon G955USQS5CRF5 ODIN file and replaced the Verizon user data with the AT&T one.

Also if I flash say CSA4 verizon with the verizon user data the put my AT&T sim card in it dose it not download all the the carrier bloatware and what not? dose that basically turn it back into a AT&T phone? or could I take that CSA4 and flash it with the CRF5 AT&T user data?

1. I have no idea what the difference is between SQS and SQU. Even on the same network, it seems to be completely random as to which one gets assigned to each new update. I don't think it matters

2. Don't flash userdata if you're going to Odin flash a different carrier's version. Just do the normal 4 files

 

[sean8102]

Sorry for the late reply. But just wanted to say that this method of getting from a G955U1 (US Unlocked) firmware back to AT&T branded firmware did end up working. I did eventually start getting OTA updates after using the method I mentioned (flashing Verizon USQS5CRF5 ROM files with AT&T G955USQS5CRF5 USERDATA file using ODIN Odin3 v3.13.1 3B Patched). Then updating to the then latest version using the update.zip method using files from the "Firmware Science" site (I think that's the name). Then about two days after AT&T released a new update I actually got it OTA. However after it installed successfully my chrome app became broken. Opening it and hitting the ... button in the top right would open the menu but all the options just said "chrome". Tried clearing the cache and files of Chrome but then it just crashed when launched. Had to do a reset (not a big deal since I had a Samsung SmartSwitch backup on my SD Card). Just hope that dose not happen every OTA, but guessing it was a weird fluke.

 

[balu4386]

Sorry for the late reply. But just wanted to say that this method of getting from a G955U1 (US Unlocked) firmware back to AT&T branded firmware did end up working. I did eventually start getting OTA updates after using the method I mentioned (flashing Verizon USQS5CRF5 ROM files with AT&T G955USQS5CRF5 USERDATA file using ODIN Odin3 v3.13.1 3B Patched). Then updating to the then latest version using the update.zip method using files from the "Firmware Science" site (I think that's the name). Then about two days after AT&T released a new update I actually got it OTA. However after it installed successfully my chrome app became broken. Opening it and hitting the ... button in the top right would open the menu but all the options just said "chrome". Tried clearing the cache and files of Chrome but then it just crashed when launched. Had to do a reset (not a big deal since I had a Samsung SmartSwitch backup on my SD Card). Just hope that dose not happen every OTA, but guessing it was a weird fluke.

Hey I am in the same boat. Can you please help pointing to the files you used to ODIN to get back to ATT version.

 

[iBowToAndroid]

SC1 USERDATA was added a few days ago, for anyone wanting to jump to Pie

 

[iBowToAndroid]

USERDATA added for bootloader 6

 

[iBowToAndroid]

USERDATA added for bootloader 7

 

[jetracer]

Ive been researching and reading most of the day about returning to stock on an att 955u. The only download i can find that wont take 6 hours is from samfirm and is G955USQS7DSL2. Can i use this and the userdata from your link to return this back to stock?

 

[iBowToAndroid]

Ive been researching and reading most of the day about returning to stock on an att 955u. The only download i can find that wont take 6 hours is from samfirm and is G955USQS7DSL2. Can i use this and the userdata from your link to return this back to stock?

Since the USERDATA is TA5, I would recommend using a build that's closer to that one. You can get TA3 from SamFirm under regions/CSCs ACG, CCT, LRA, SPR, TFN, or VZW.

When you say "returning to stock", what firmware is currently on the device?

 

[jetracer]

Since the USERDATA is TA5, I would recommend using a build that's closer to that one. You can get TA3 from SamFirm under regions/CSCs ACG, CCT, LRA, SPR, TFN, or VZW.

When you say "returning to stock", what firmware is currently on the device?

I was on a verizon build. I ended up returning to stock with G955USQS6DSG4, got one update and now says no firmware. Currently shows G955USQU6DSH8.

SamMobile actually had pretty decent speed.

 

[iBowToAndroid]

I was on a verizon build. I ended up returning to stock with G955USQS6DSG4, got one update and now says no firmware. Currently shows G955USQU6DSH8.

SamMobile actually had pretty decent speed.

Do you have all of AT&T's apps and bloatware now? If so, it should be updating at least to SJ3, if not up to TA5. You would need an active AT&T SIM inserted in order to pull the update though

 

[jetracer]

Do you have all of AT&T's apps and bloatware now? If so, it should be updating at least to SJ3, if not up to TA5. You would need an active AT&T SIM inserted in order to pull the update though

Yea just uninstalled and disabled a bunch of att and samsung bloat. I am currently running an att sim. Should i possible download the v7 files and try again? Shouldn't matter that the firmware was from "tmobile" right its the userdata that counts iirc.

 

[iBowToAndroid]

Yea just uninstalled and disabled a bunch of att and samsung bloat. I am currently running an att sim. Should i possible download the v7 files and try again? Shouldn't matter that the firmware was from "tmobile" right its the userdata that counts iirc.

What do the 3 service provider codes show as, under Software Information?