the phone was working fine then the next time i pulled it out of my pocket it was off. i pushed the power button and it came on but would only display a dark screen with the motorola symbol. it won't go any further to pull up the usual screen saver with options to use the phone. i have tried charging it and taking the battery out and back in. i am with boost so there is no sim card and i am scared of loosing all my data....anyone have any ideas?????