Well get this. I was going to flash a PSP for a friend. I put in the magic mem stick and Pandora.....all the lights turn on but thats it like the pandora doesn't work...So I try on my PSP works fine...I'm like WTF. Then I try few more things like using a normal battery and running it of the charger, nothing worked...it was basically a hardware brick. When I opened it up the ribbon for the menu buttons bar thing (start, volume, select etc...) was unplugged....I plug it back in and it worked fine...but then I screwed it up coz I put the wrong screw in the wrong hole and it went to far and cracked the screen. lol. So yeah maybe something inside unplugged itself...or a component got damaged...First try re-flash it. If it still doesn't work open it up.