....how long have you had the phone ?? Could be defective and if so, take it back to where you bought it. Have you tried a system reset ??
Just recently got this phone used. I did a hard reset on it and got it activated with a pay as you go plan. When I turn it on and the home screen apears, I have a hard time sliding up the screen to unlock it. After that it freezes in certain places, ie a letter, app, phone etc. Now it's acting as if it has a mind of it's own and is going wonky with flashing back and forth to different places. Am wondering if it needs a new digitizer. Also, the battery life is poor. Any opinions as to this problem?