si no te quieres complicar mucho instalando un cfroot por odin puedes realizar este metodo que esta sacado de XDA
Rooting
- Download this File first and put in your SDCARD
- CWM via stock recovery or download zip from http://clockworkmod.com/rommanager
- SU-Busybox-Installer.zip
- Reboot to recovery.
- Choose apply update from external storage.
- Choose CWM.zip and wait until CWM recovery appear.
- Choose install zip from sdcard or external SD
- Choose and Install SU-Busybox-Installer.zip
- Reboot
- You are done and now your device is Rooted
Unroot
- Download this File first and put in your SDCARD
PD. donde dice SDCARD se refiere a la memoria interna aunque tambien te vale en la microsd