It was working fine till this morning. I charged it to full battery assuming it was dead overnight. However, the screen wouldn't turn on. BUT, it had that vibrate when u turn on the phone. I tried calling my cell phone, it vibrated once and it said my voicemail is full, very confused. Also, even my alarm clock works but the screen won't turn on. Can anyone help me with this? Thank you. Also, i have not dropped or damaged my device at all. When i slide the keyboard makes a different sound though, maybe that's the problem?