Whenever you press the “Shift-Delete” or empty the Recycle Bin (or Trash) to permanently delete files, that actually don’t “permanently delete” files. That means you can get those files back like Magic !!! Software required to do that magic are called file recovery software. This could be very useful if you’ve accidentally deleted important files even wiped whole disk you can get almost everything back.
Lucky Patcher is a very useful applications for any rooted Android device. Normally people use it just for removing Advertisements, still there are lots of good uses includes change application permissions, make a normal app to system app. For the security purpose changing app permissions is very useful. The question is why would you like to change application permissions ? so here is the reason which would make you do it,