IMEI(EFS) Tool N5 S6 E+ [Root] v1.2
Requirements: 4.4W and up 
Overview: Requirement : Rooted Samsung Galaxy Note5 SM-N920 / SM-G928
WITHOUT ROOT ACCESS THIS APP WON’T WORK. 

It is small utility to backup/Restore EFS for Smamsung galaxy NOTE 5 and S6 Edge +
Features
This ... http://www.apkformod.com/imeiefs-tool-n5-s6-e-root-v1-2/