Has anyone else have the same problem?? My screen will turn its self on and off and its killing my battery life. The cycle seems to be that it will turn its self on for 30 seconds then it'll turn off for 30 seconds, then back on for 30 seconds and so on and so forth..... It started doing this when I got the last update (back in early Sept). When I first got the phone I was getting 20-23 hours on the battery. Sometimes I'm lucky if I get 12-14 hours on the battery. It even charges slower because the screen keeps popping on and off.. PLEASE HELP!