Flash This autoroot file by Chainfire with Odin:
CF-Auto-Root-tblte-tbltexx-smn915f.zip
Download this CWM recovery and flash via Odin:
n915f-cwm-recovery-6.0.5.1(1128).tar
Put this file on SDCard:
UPDATE-SuperSU-v2.46.zip Enter Recovery Mode:
Install UPDATE-SuperSU-v2.46.zip
Reboot, Run SuperSu (update if necessary)
Check Root