Originally Posted by Teet1
The root is temporary whether or not you reboot. After a while, root stops working and sometimes makes your phone unstable. Everything may start to crash and you'd have to reboot your phone.
This is true, I've seen it too.
What is interesting is that root checker claims that there is /system/xbin/su present by Kingroot. But /system is always read only. ES explorer appears to create files in /system, but if you quit and re-launch, there are no files there.
From shell, I tried to quickly replace KingRoot with SuperSu :
This did not work since in shell it claims that the file system is read only.
I wonder how Kingroot manages to maintain the illusion of /system/xbin/su for a while.
There could be a way to authorize SuperSu with Kingroot, and keep the temporary root all the way until a reboot.