For some odd reason my LG Optimus one day went nuts. It turned off and then back on, i didn't check it until i returned home, and i saw that it had done some sort of update while having been rooted. It's no longer rooted, even though it says it is. How do i truly unroot? I have tried several things and can't find anything more on google. Will factory reset help? I've heard it only removes user data?