my son got psp yesterday (xmas day !) - he loaded brand new open season game andwas asked to perform software update. he didnt have ac adaptor plugged in ( he didnt realise that he should have !) update got to 69% then crashed completely ! psp not working at all now - power light comes on for approx 20 secs then off again - ive tried pressing and holding in all buttons with no joy. surely my son is not the first person to cause this to happen - read through psp manual - cant find any referance to a solution. please help !