I rooted my LG Optimus L7 P705 over a year ago. About two months ago whenever I tried turning on my phone it would get just past the password screen but as it was "scanning internal memory" it vibrated four times and the screen went black (the four lights at the bottom stayed on). Then it restarts itself and does the same thing over and over. I had tried rebooting it, taking the battery out, safe mode, etc. Nothing worked. Can someone please advise me on what to do?