I know there are battery and or battery gauge issues. I don't know if this is related or not. The phone when being idle for an extended period of time, with the screen off and no usage, either turns off and freezes or just freezes. I have had this happen three times. Twice the phone was set down during a movie. When I picked it up, the screen would not come on when I hit the red button. I held down the red button as if trying to turn the phone on, and nothing. I sat the phone down once during a nap and fortunately woke up on my own, the alarm didn't go off because the same thing happened. The only way to get the phone back on was to take the battery out and put it back in again. Then the phone started up fine.