You can download & install SuperSU from playstore...
Open SuperSU it will prompt you that the binary needs to be installed, click ok! It will then say failed and give the option to install it via cmw or twrp click ok! The system will now reboot to the stock recovery, exit out and reboot to safestrap. Once in safestrap choose install and go to "/cache/recovery" and select "update.zip" swipe to flash then reboot to system. Open SuperSU and now it should be working.
Lmk if this works for you...
Sent from my SM-N900V using XDA Premium 4 mobile app
Access and security are some of the key issues facingmobile technology. Whether … more
20 Sep 2014
By Faiz Malkani
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?