Since updating to 2.2 my phone randomly has started to shut off. I can't turn it back on until I do a battery pull. The battery is at full power too! It even happened while on the charger! Any suggestions?
Make sure your sd card isn't corrupted. Take it out and reboot the phone. If the problem goes away with no added card in, you will need to back up the card and reformat it. Then move only essential files and folders back.