For my question, let me give some background. My business is to data clear phones and tablets. I've been tasked with research into rooted devices. I have a very basic grasp of this concept. I think what I've found is that rooted devices can be 'unrooted' but only if one knows what rooted it originally. I've found this:
You’ll have to use either a terminal emulator or ADB. Here are the commands to uninstall it:
mount -o remount,rw /system rm /system/app/Superuser.apk
Would that be a good way to remove the root from all cells across the board?
Specifically what I need to know is what do rooted devices mean to the cell phone data clear industry? Is there user data in a rooted device after data clearing it manually?