I heard through news reports that a sign that your phone is bugged or taken over is if the screen comes on for no reason. I have noticed that after I send a text, or shut down an app, that the screen saver kicks in and shuts off. Right after that, it turns back on. The screen is on again until the screen saver shuts it off again. What could it be? Also, my phone freezes constantly. Not sure if it's related. Any help would be greatly appreciated.