What does unrooting Android mean?
“Unroot” is term used for removing root on your rooted Android smartphone or tablet device.
There’s two different terms of unrooting, first refers to simply removing root from your Android device. This simply means that you will be removing 2 or 3 files that gives your Android device superuser/admin access to your phone. Specifically, you will be removing the three files Superuser.apk (the SuperUser or SuperSU app) and su binaries (usually located in /system/bin and /system/xbin) directory. (If you want to learn how to manually remove root yourself using ES File Explorer, see How to Unroot Android Smartphone or Tablet.)