The T-Mobile variant of the Samsung Galaxy S6 with model number G900T is finding a new over the air update that boosts the operating system to UVU1DOB1 Android 5.0 Lollipop. As long as you’ve already updated to that firmware and software build, you can now unchain the system internals with root access by following this guide.

Once you have opened the ports with root access, you can add extra power, use apps to help with battery life, remove unwanted apps and bloatware that come from the OEM or phone carrier network you are a subscriber with, plus the usual tricks like flashing a custom ROM. Read how it’s all done after the drop.

Samsung Galaxy S6 T-Mobile

You shouldn’t lose data from the S6 smartphone just by following this guide because it’s not applying a factory reset. However, that doesn’t mean you won’t find yourself wanting a factory reset if something happens to the smartphone. Backup the media, phone contacts, SMS texts and Settings using apps or the built-in backup option that Samsung gives. You might also prefer downloading Samsung Kies to sync the device and install the Samsung USB Drivers.

Turn on the S6 smartphone and point to the Settings > About Device and tap on the build number seven times. Once done, go back to the Settings screen and enter the Developer Options menu. Inside the Developer Options you must enable the USB Debugging Mode. With that mode enabled you can now connect to the Windows PC and use programs.

Flashing rooting files through Odin does void the warranty and probably trips Knox. Chainfire’s tools are fantastic but they always trip Knox. Moreover, you are voiding the warranty by following this guide, but you can unroot in most cases and get that warranty working again. You hear mixed results as to whether tripping Knox matters or not.

How to root the Samsung Galaxy S6 G900T on Android 5.0 Lollipop UVU1DOB1 firmware

  1. Download Odin 1.85 here.
    – use the desktop of the Windows PC for downloading the file.
  2. Download the CF rooting file provided by Chainfire here.
    – you also want the file here on the desktop.
  3. Unzip both files by putting the mouse over the files and right-clinking. Now select to extract the contents of both files.
  4. You are left with some files inside that you can use. Click the executable Odin file that’s inside the Odin package you just unzipped. That program will now run on the desktop of the computer.
  5. Completely Power down your Galaxy S6 now and we want to reboot that in Download Mode.
    – to do that, hold the Volume Down, Power and Home keys down at the same time and don’t release them until the screen changes. You should see some written text and a warning triangle beneath the text.
  6. At this screen you now want to press the Volume Up button to complete getting in the Download Mode.
  7. Once in Download Mode we are ready to connect the Galaxy S6 to the computer with the USB cable.
  8. You should see the Odin app (on the computer)  change the color of the ID: COM port and your S6 device is now connected. if that doesn’t happen for you it’s time to update the USB drivers from Samsung’s website.
  9. Once satisfied that the S6 is connected, click the PDA button and browse the desktop for the rooting tar.md5 file that’s inside the CF-Auto-Root file from Chainfire you downloaded earlier.
  10. Leave Odin’s settings as they are by default. If you have changed them, you’ll need to check the re-partition is empty, the Auto reboot and F Reset Time options and on and working.
  11. Now click the Start button inside Odin to start the rooting of the Galaxy S6 on the new  UVU1DOB1 software update.
  12. Eventually the Odin app on the computer should tell you that the device passed and then the S6 will automatically reboot. Once done, you can regain control of your Google account and start downloading applications from Google Play that you couldn’t use before.

Unfortunately, the Odin app made by Samsung does not tell us if the Samsung Galaxy S6 has root access or not, so you need to check that it worked a different way. Download the root checker app from Google Play, open it from the app drawer and check that it is working. Checking the root permissions will save you time so you don’t go to install a custom recovery image only to find it doesn’t work. from there you are ready to flash custom ROMs. remember to read reviews on the ROMs before making your choice as some are a great deal more professional than others from third-party sources.