Install ES File Explorer app on your device.
Don’t move it to SD card.
Open the app and tap the menu button
Now tap on ‘Tools’ and select ‘Root Explorer’
to turn it on.
Superuser will ask you to grant privilege or root
privileges to the app. Allow it.
Now go back to the main screen of the app and
select ‘/’ in the top corner of the screen.
Go to system -> bin. Find
the busyboxand su file and delete them. If you
can’t find any of them, just skip to the next step.
Go back to system folder then open ‘xbin’ folder
and delete the busyboxand su file there (if you
Now go back to the system folder again and open
‘app’ folder and then delete the supeuser.apk file
located in the folder. That’s all.
Now restart your device and it should be unrooted.