so i have the at&t version g960u, if i flash u1 firmware will i then have "oem unlock" option in developer options?
i flashed U1 firmware just fine, it finished with no problems and showed my phone as U1 in settings, i tried to flash to TMO and it went back to just at&t, tried sprint and verizon too all said success but phone says erasing as it boots and boots with at&t logo, whats going on?, i like the U1 unbranded look but its clocked at 2.5Ghz wheras just the U is clocked at 2.8, 300Mhz may not be much but i would rather have that option plus unbranded at&t junk. what should i do?
i flashed U1 firmware just fine, it finished with no problems and showed my phone as U1 in settings, i tried to flash to TMO and it went back to just at&t, tried sprint and verizon too all said success but phone says erasing as it boots and boots with at&t logo, whats going on?, i like the U1 unbranded look but its clocked at 2.5Ghz wheras just the U is clocked at 2.8, 300Mhz may not be much but i would rather have that option plus unbranded at&t junk. what should i do?
Do you have the SIM of the carrier firmware you are flashing to in the device when flashing from U1 to U? Are you using the HOME_CSC, because that prevents conversion?
i dont have a sim card, using HOME_CSC to flash the new U firmware, like i said the U1 firmware flashes just fine its when i try other U firmwares that it says erasing as it boots after flash then boots as at&t again with no changes.
The HOME_CSC prevents conversion by preserving data that needs to be wiped. It might flash successfully, but it isn't erasing and writing over what it needs to because the HOME_CSC is being used. Using the SIM card of the carrier firmware you are flashing to helps because it specifies what needs to be configured on setup. Otherwise, it will just assume you are going to be using the same carrier the device was originally configured for.
im getting a weird error in windows explorerI've done it!
I've completed this task tonight thanks to some great help from a user that stepped me through it on a TMO Forum.
First an FYI, I first was able to flash my AT&T S9 version from SM-960U to a Stock SM-960U1. It worked great. After that, I was able to flash the TMO Rom and it's also working perfect. I'm not sure if it's required or not to flash the phone to a U1 first or if the TMO Rom can just be flashed. After I flashed the TMO firmware, I had no issues downloading and installing the latest TMO update. (My device is unlocked as well)
It's best to use Samsung switch first to backup your texts, pics, etc. first if you want to restore them to the device after completing the flash. The below instructions will start the phone up as if it was new out if the box.
Here is what I was provided with and the steps I followed.
To Flash the SM-G960U to a SM-G960U1
1. Allow\Enable USB Debugging in Developers settings.
2. Download the U1 Firmware here: https://androidfilehost.com/?w=files&flid=257063
(this is the U1 from Samsung, it's compressed but once extracted it will be around 4GB's of data.)
3. Download the ADB tools: https://devfiles.co/download/PDYvOWBg/platform-tools-latest-windows.zip. Create a folder on your desktop and name it ADB (for easy reference)
4. Download Odin: https://drive.google.com/file/d/10dSyPTuccP8Km9MnDrvbRdS-CAcgFZB3/view
5. From windows, run command prompt, in the command prompt type the following: cd C:\Users\XXX\Desktop\ADB
(XXX is your username)
6. Connect your phone to a USB port on your computer, your phone should prompt you to allow the connection to\from your computer. Allow the connection. Might be best to choose to "Always Allow"
7. Return to the command prompt and type in: adb devices You should see your device listed.
8. In the same command window, type in: adb reboot bootloader This will auto reboot your device into the "Download" mode.
9. Open and run Odin, add the corresponding tar files to the respective area's, in the "options tab" in Odin, make sure that only "Auto Reboot" and "F. Reset Time" is checked.
Click "Start" and the process will take a few minutes to complete.
Allow the device a few minutes to auto reboot and start up.
After you get through all the post boot setup screens, open a phone dial pad and type in, *#2263#. then make sure that all LTE bands are enabled.
Here you can find the SM-G960U T-Mobile Files: https://www.droiddosh.com/2018/04/samsung-galaxy-s9-sm-g960u-firmware-tmobile-usa-G960USQU1ARBG.html
I've done it!
I've completed this task tonight thanks to some great help from a user that stepped me through it on a TMO Forum.
First an FYI, I first was able to flash my AT&T S9 version from SM-960U to a Stock SM-960U1. It worked great. After that, I was able to flash the TMO Rom and it's also working perfect. I'm not sure if it's required or not to flash the phone to a U1 first or if the TMO Rom can just be flashed. After I flashed the TMO firmware, I had no issues downloading and installing the latest TMO update. (My device is unlocked as well)
It's best to use Samsung switch first to backup your texts, pics, etc. first if you want to restore them to the device after completing the flash. The below instructions will start the phone up as if it was new out if the box.
Here is what I was provided with and the steps I followed.
To Flash the SM-G960U to a SM-G960U1
1. Allow\Enable USB Debugging in Developers settings.
2. Download the U1 Firmware here: https://androidfilehost.com/?w=files&flid=257063
(this is the U1 from Samsung, it's compressed but once extracted it will be around 4GB's of data.)
3. Download the ADB tools: https://devfiles.co/download/PDYvOWBg/platform-tools-latest-windows.zip. Create a folder on your desktop and name it ADB (for easy reference)
4. Download Odin: https://drive.google.com/file/d/10dSyPTuccP8Km9MnDrvbRdS-CAcgFZB3/view
5. From windows, run command prompt, in the command prompt type the following: cd C:\Users\XXX\Desktop\ADB
(XXX is your username)
6. Connect your phone to a USB port on your computer, your phone should prompt you to allow the connection to\from your computer. Allow the connection. Might be best to choose to "Always Allow"
7. Return to the command prompt and type in: adb devices You should see your device listed.
8. In the same command window, type in: adb reboot bootloader This will auto reboot your device into the "Download" mode.
9. Open and run Odin, add the corresponding tar files to the respective area's, in the "options tab" in Odin, make sure that only "Auto Reboot" and "F. Reset Time" is checked.
Click "Start" and the process will take a few minutes to complete.
Allow the device a few minutes to auto reboot and start up.
After you get through all the post boot setup screens, open a phone dial pad and type in, *#2263#. then make sure that all LTE bands are enabled.
Here you can find the SM-G960U T-Mobile Files: https://www.droiddosh.com/2018/04/samsung-galaxy-s9-sm-g960u-firmware-tmobile-usa-G960USQU1ARBG.html
Any chance anybody has success doing this? It seems like a "Must Have" feature to switch carrier roms on the G960U between carriers, including Boot Screen/Logo, Firmware, Bloatware, etc.
All the goodies.
Any help?
Thank you,
B"H
Ok, thank you.
1. So stock G960U (Original Carrier) -> Flash to U1 -
2. Then, Go from G960U1 -> Stock G960U (Any Carrier)
Few questions:
1. Which CSC file are you using to flash -- CSC_HOME?
2. In moving from U1 -> U, do you need the final carrier SIM inside the phone?
I've tried this with a Verizon phone I'd like to convert to XFinity (CCT). I flashed the G960U VZW to G960U1 XXA. That worked fine. Then I flashed the G960U CCT rom, and the phone just boots up Verizon. When I check the CSC, it says "VZW/VZW/VZW", even though I flashed the CCT rom.
I don't have an XFinity sim card, so perhap that is the problem.
Any help would be great.
Thanks, I have a question, I am try to flash T-Mobile ROM on xifinity S9 that has android 8 on it. should I proceed with the same process. or get the latest T-Mobile ROM. Please help