I have the samsung galaxy ace IIx I was using it all day just fine, although it had said it never acknowledged that I unplugged the charger. Then tonight I go to use it and press the button to wake it up. Nothing happens the screen remains black. I plug it in and try again, still nothing. I pull out he battery and SIM card, multiple times for different lengths and still nothing. What can I do next, what is wrong with my phone?