T-Mobile Samsung Galaxy S3 non-LTE (SGH-T999) and LTE (SGH-T999L) has received an update to Android 4.3 Jelly Bean. The non-LTE version has been getting updates earlier, in November 2013 with build number T999UVUEMJC, while the new LTE-enabled devices got it at the end of last year, features T999LUVUBMK4 software version.
If you have taken the software update, then you might lose root, considering that the internal storage will be wiped and replaced with the new firmware from the OTA. The former root method might not be suitable for the new firmware as it brings major OS updates and new Samsung’s security feature.
However, there is no need to worry about the loss of root permanently, since there is one method that could root our T-Mobile Galaxy S3 running Android 4.3 (MJC or MK4 software version), thanks to mrRobinson, a recognized contributor from xda who have been providing the latest stock firmware with rooted system image injected into it. So now we are more confident to obtain this update, as superuser privileges can be achieved just as before.
- Download the Galaxy S3 drivers, if you’re a KIES user, you’re advised to update it to the KIES 3, mainly because it’s designed for Samsung devices running Android 4.3 Jelly Bean.
- Get the Odin flash tool, it required to flash a firmware to our computer, for Mac/Linux users, you could try Heimdall.
- Get the stock rooted firmware from mrRobinson’s thread on xda forums. Be sure you don’t pick the wrong firmware, T999UVUEMJC is for non-LTE version and T999LUVUBMK4 is for LTE version. And never use an older version of firmware once updated to 4.3.
Easily root T-Mobile Galaxy S3 runs Android 4.3 (MJC or MK4 update)
- Extract the firmware you’ve downloaded before by using 7zip, once extracted you will see a tar file there.
- Turn off your phone and then put it into download mode by hold volume down + home + power button for a few seconds.
- Unzip Odin package, select Odin version you desire then run the executable file (*.exe).
- Once Odin shows up, in Option section leave the F. Reset Time and Auto Reboot checked.
- Connect the phone to the computer, OEM USB cable and a PC with USB 2.0 slots is preferable. If you are connected properly, your device will be recognized by the app.
- Click PDA button and point to the extracted tar file (step 1).
- Hit Start button and let Odin flash the firmware for you. Once done, the phone should reboot and your T-Mobile Galaxy S3 should rooted now and running latest Android 4.3 (MJC or MK4 update).