QuickTip: Fix SuperSU not being detected by some apps
You’ve probably experienced some root-related issues when trying to request root-rights with older apps on Android. This is due to Chainfire changing the su-path, some applications simply stop detecting root because they they don’t know where the root binaries are now.
To fix this you can use the following commands on an already rooted Android phone inside of Terminal Emulator (as example):
su mount -o remount,rw /system ln -s /su/bin/su /system/xbin/su mount -o remount,ro /system
This will, at least, fix ES File Explorer. However I’ve contacted those guys and they’ll hopefully bring an update out soon.