Now device is Bootloader Unlocked + CWM recovery + S-ON & ready to flash custom rom. BUT IS HIGHLY RECOMMENDED TO BACKUP YOUR STOCK ROM PRIOR FLASHING CUSTOM ROM.
To ROOT STOCK ROM with STOCK BOOT.img/KERNEL ,
(i) download CWN-SuperSU-v0.96.zip [thread] by Chainfire
(ii) reboot into recovery mode
(iii) select install zip frm sdcard > choose zip frm sdcard > select zip file as in (i) step above > proceed to flash.
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?