This tutorial uses CF-Auto-Root file released by recognised XDA Developers, Chainfire. The CF-Auto-Root file allowing Galaxy Note 2 users to root their devices easily without depending on the firmware. It completely supports Android 4.1.2 Jelly Bean and future firmware as well.
Disclaimer: Rooting voids the warranty of your device. We and the developer of this rooting procedures shall not be held responsible if any undesirable outcomes may happen to your device. use of this root guide is solely at your own risk!
1. Install USB Driver for Samsung Galaxy Note on the computer.
2. Enable USB Debugging Mode on the phone.
3. Make a backup of all your important data before following the guide.
4. The Galaxy Note 2 should be factory unlocked and not locked to any particular carrier.
5. Ensure the battery of the phone is charged more than 80 per cent.
6. The CF-Auto-Root file works only on Samsung Galaxy Note 2 N7100. Applying this on any incorrect variant will brick the device. Verify the model number of the Galaxy Note 2 by navigating to Settings >> About Phone.
1. CF-Auto-Root for Galaxy Note 2 N7100 (CF-Auto-Root-t03g-t03gxx-gtn7100.zip)
2. Odin 3.07
Steps to Root Galaxy Note 2 N7100 on Android 4.1.2 XXDMD2 Jelly Bean
Step 1: Extract downloaded CF-Auto-Root zip file and you will find a .tar.md5 file within it.
Step 2: Extract Odin zip file and you will get Odin3 v3.07.exe along with few other files.
Step 3: Power off your phone. Wait 5-6 seconds for vibration to confirm complete switch off.
Step 4: Boot the device into Download Mode by pressing and holding Volume Down + Home buttons together and then press the Power button until the device turns on. Now press the Volume Up button to enter Download Mode.
Step 5: Run Odin on the computer as an Administrator.
Step 6: Connect the Galaxy Note 2 to the computer using USB cable while it is in the Download Mode. Wait until Odin detects the device. When the device is connected successfully, the ID: COM box will turn yellow with the COM port number. Additionally, the successful connected will be indicated by a message saying Added. If Odin fails to detect the device then re-install USB driver.
Step 7: Select these files in Odin at respective buttons:
- Click the PDA Button, and select CF-Auto-Root-t03g-t03gxx-gtn7100.tar.md5.
Step 9: Verify everything suggested in Step 7 and Step 8 is done correctly. Then hit the START button to begin the flashing process.
Step 10: Once flashing completed, your phone will restart and soon you will see a PASS message with green background in the left-most box at the very top of the Odin. You can now unplug the USB cable to disconnect your device from computer.
Your Samsung Galaxy Note 2 N7100 running on Android 4.1.2 XXDMD2 Jelly Bean firmware is now rooted successfully. You may now install any app that requires root permission.
Thank's to all fellas at XDA who first tried out this rooting technique. This root method was originally posted via XDA-Developers original thread.