Help!!! My PSP won't Turn on. The Green light comes on, but the UMD drive doesn't spin up, the memory card light doesn't flash and there's no picture. I was upgrading the firmware and then it stopped at 50%!!! The psp battery was full and it was plugged in, but it still shut off! Now I don't get anything. It's not under waranty so i'm free to tamper with it. Is there any reset code? I tried lots, but none seem to work. Is there something on the mother board that can fix it? My charger AND Battery works on a friends psp, so it's not that! PLEASE HELP!!!!!!