Its really weird usually my phone works fine but it seems more recently ive been having this issue. I'll have the phone on but when i try to get it out of sleep mode the screen stays black and doesnt react to anything. Usually it will react when i receive a phone call or txt message than it lights up and ill be able to mess with it but as soon as it goes back to sleep same issue...i usually have to connect the usb to it and keep it plugged than start messing with it again to fix it...anyone know the issue?