Samsung Galaxy Note 2 (T-Mobile) SGH-T889 users who have already updated their devices with Android 4.3 Jelly Bean, may root their devices using the tutorial below.
This tutorial uses CF-Auto-Root file released by Senior Recognized 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 4.3 Jelly Bean and future firmware as well. Head over to the CF-Auto-Root main thread to learn more about the root method.