These are instructions on how to root Samsung Galaxy S3 GT-I9305T (running on android 4.1.1, built id JRO03C.I9305TDVALI6) using Odin on Windows Computer.

Requirements: Your Samsung Galaxy S3 GT-I9305T should have at least 30-40 percent of battery to perform the rooting process.

Root Samsung Galaxy S3 GT-I9305T using Odin

  1. Download and Install Samsung USB Driver on the computer. If in case Samsung USB Drivers are already installed on the computer, then SKIP this step.

    2. USB Logo

  2. Download and extract the root files on the computer. Once the archive is extracted, you will be able to see the following files:

    3. Chainfire Root File for Samsung Galaxy S3 GT-I9305T

  3. Enable Developer Options on your Samsung mobile. To Enable Developer Options: Open Settings > About Phone > Tap on the Built Number for 6-8 times until developers option is enabled.

    4. Galaxy Built Number

  4. Enable OEM unlock on your Samsung mobile. To Enable OEM Unlock: Open Settings > Developer Options > Tap on the OEM unlocking checkbox > Tap on Enable > Tap on Delete All button.

    5. Galaxy OEM Unlock

  5. Now, Power off your mobile device.

    6. Power Off Samsung Galaxy S3 GT-I9305T

  6. After switching-off the Smartphone, you need to boot into Download Mode. To boot into download mode Press and hold Volume Down, Home Button and Power Button at same time for 5-8 seconds (you have to press and hold the buttons at same time) until download mode is active.

    7. Samsung Galaxy S3 GT-I9305T Download Mode

  7. In the Download mode you will be able to see a Warning Yellow Triangle Sign. In this situation you have to press the Volume up key to continue.

    8. Samsung Galaxy S3 GT-I9305T Warning Sign

  8. Now, Open Odin3 (found in the extracted files, that you have downloaded in the Step#2) on your computer. Then connect your Smartphone to the computer.

    9. Open Odin3.07 for Samsung Galaxy S3 GT-I9305T

  9. Once you have connected the Smartphone to the computer, Odin will automatically recognize the device and displays Added message at the Log Area.

    10. Samsung Galaxy Added Odin 3.07

  10. Once your device detected by Odin, Click on the AP/PDA button and select the CF-Auto-Root.tar file (you have downloaded this file in step#2).

    11. Add PDA Odin 3.07 for Samsung Galaxy S3 GT-I9305T

    Odin3.07 PDA file for Samsung Galaxy S3 GT-I9305T

  11. Now, click on the Start button in Odin to begin the Flashing.

    12. Start Odin3.07 Flash Samsung Galaxy

  12. Flashing usually takes 30-50 seconds to complete the rooting process on your Samsung Galaxy S3 GT-I9305T. Once Rooting process got completed, you will be able to see a Green Box with Pass written on it in Odin. During this process Smartphone will re-boot automatically.

    13. Odin3.07 Flash Completed for Samsung Galaxy

  13. Once you see, the Pass message in Odin, you can disconnect your Device from the computer.
  14. Now, to make sure you have successfully rooted your Samsung Galaxy S3 GT-I9305T, open the Applications Menu on your Smartphone and Find SuperSU App. If this app exists on your Smartphone, then it means you have successfully rooted your device. Congratulations.

    15. SuperSU Installed on Samsung Galaxy S3 GT-I9305T

    Optional: You can also verify the root status of your device by using the Root Checker App.

Notes

[*] Warning: The above tutorial only works for Android 4.1.1 with the built id JRO03C.I9305TDVALI6.

[*] If your device isn’t running on the same built id JRO03C.I9305TDVALI6, then you may need to download and flash (install) the firmware based on the same build id. Later try to root your device from the above method.

[*] No data loss process: Your data including contacts, pictures, videos, music wont be affected using the above method. In short, no data loss process.

[*] Samsung Stock Firmware: If you are looking for the original firmware for your device, then head over to Download Samsung Stock Firmware page.

[*] Samsung USB Driver: If you are looking for the original USB Driver for your device, then head over to Download Samsung USB Driver page.

[*] Big thanks to Chainfire for their CF Auto Root file for Samsung Galaxy S3 GT-I9305T. Without using the CF-Auto Root file, the above tutorial was not possible.