Samsung is yet to roll out the OF6 Android 5.1.1 update for T-Mobile Galaxy S6, but the firmware is already available for installation via Odin software. The build no. of the Android 5.1.1 update is G920TUVU2COF6, and its Odin flashable TAR is available for download.

You can update your T-Mobile Galaxy S6 to official Android 5.1.1 update right away, and don’t need unroot or remove TWRP recovery either — upon installing the update, both root and custom recovery would be gone automatically as all partitions will be flashed with Samsung stock ones. So, you will have stock recovery, and unrooted Galaxy S6, but you can install TWRP recovery again, and root too.

The changelog of the Android 5.1.1 update is now available as of now, but we expect it to be available shortly. Keep watching this space as we’ll be updating this post once we have our hands on it. For now, just download and install the Android 5.1.1 update on your S6. And do let us know what you feel about it. Do you see any noteworthy improvements in performance?

T-Mobile Galaxy S6 Android 5.1.1 Lollipop Update G920TUVU2COF6

Downloads

Supported devices

  • T-MOBILE SAMSUNG GALAXY S6 (model no. SM-G920T)
  • Don’t try this on Galaxy S6 Edge, whose model no. is G925T, or any other S6 or S6 Edge set from Samsung!
  • Don’t try on any other device whatsoever!

Instructions

Disclamer: Installing an official firmware through Odin doesn’t void your device’s warranty, but it remains an unofficial process and thus you need to be cautious of it. In any case, you only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.

Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files. Sometimes, Odin installation may delete everything on your device!

  1. Download Odin and firmware file from above.
  2. Install Galaxy S6 drivers (method 1 there!) first of all. Double click the .exe file of drivers to begin installation. (Not required if you have already done this.)
  3. Extract the firmware file now. You can use a free software like 7-zip for this. Install 7-zip, then right click on firmware file and under 7-zip, select ‘Extract here’.
  4. You should get the a file in .tar.md5 format now (G920TUVU2COF6_G920TTMB2COF6_G920TUVU2COF6_HOME.tar.md5). We will be loading this file into Odin, to be installed on your Galaxy S6 (in step 10 below).
  5. Extract the Odin file. You should get this file, Odin3 v3.10.6.exe (other files could be hidden, hence not visible).
  6. Disconnect your Galaxy S6 from PC if it is connected.
  7. Boot T-Mobile Galaxy S6 into download mode:
    1. Power off your S6. Wait 6-7 seconds after screen goes off.
    2. Press and hold the three buttons Volume Down + Power + Home together until you see warning screen.
    3. Press Volume Up to continue to download mode.
  8. Double click on extracted file of Odin, Odin3 v3.10.6.exe, to open the Odin window, as shown below. Be careful with Odin, and do just as said to prevent problems.
    Odin 3.10.6
  9. Connect your Galaxy S6 to PC now using USB cable. Odin should recognize your S6 . It’s a must. When it recognizes, you will see Added!! message appearing in the Log box in bottom left, and the first box under ID:COM will also show a no. and turn its background blue. Look at the pic below.
    • You cannot proceed until Odin recognizes your device and you get the Added!! message.
    • If it doesn’t, you need to install/re-install drivers again, and use the original cable that came with device. Mostly, drivers are the problem.
    • You can try different USB ports on your PC too, btw.
      Odin 3.10.6 Added message
  10. Load the firmware file into Odin (that you got in step 4 above). Click the AP button on Odin and the select the file: G920TUVU2COF6_G920TTMB2COF6_G920TUVU2COF6_HOME.tar.md5
    • Info: When you load files, Odin checks the md5 of firmware file, which takes time. So, simply wait until that’s done and the firmware file is loaded. Don’t worry if Odin gets unresponsive for a while, it’s normal. Binary size will also show up in Odin.
      Odin 3.10.6 Firmware loaded after md5 check
  11. Make sure Re-partition checkbox is NOT selected, under the Options tab. Don’t use PIT tab either. Go back to Log tab btw, it will show the progress when you hit start button in next step.
    Re-partition Remains Off
  12. Click the Start button on Odin now to start flashing the firmware on your T-Mobile Samsung Galaxy S6 . Wait till installation is finished, after which your Galaxy S6 will reboot automatically. You’ll get PASS message as show below upon successful installation from Odin.
    • If Odin gets stuck at setup connection, then you need to do steps 6 to 12 again. For this, close Odin, disconnect your S6, remove battery, insert it back after 5-6 seconds and then start from step 6 again.
    • Or, if you get FAIL in the top left box, you need to try flashing again, as stated just above.
      Odin 3.10.6 Pass Message Appears
  13. First start of the device may take time, so wait patiently again. Check the Settings > About phone to confirm new firmware.

That’s it. Enjoy the G920TUVU2COF6 Android 5.1.1 firmware, OF6 in short, on your T-Mobile Galaxy S6!

If you need any help with this, let us know via comments below and we will try our best to help you out.