So my psp wont turn on, i was simply playing a game turned it off and it would not turn back on. I just want to know, i put a couple custom backgrounds on it, will that interfere with the warranty? I mean, if it cant turn on they wont know right? Or do they open it and fix it? Im lucky all my homebrew isnt on my 32

It happened to me ,i just took the batt out and cleaned the metal ends and put it back in connected the power and bang it worked again.Hope this works for you.

I tried cleaning with an eraser, no go. It doesn't even power when no battery is in and the power ac plugged in.

Well i could be wrong but doesnt it still need the batt in even if you are using the mains ?
anyway hope you get it sorted soon m8.

You can't use an battery based system unless it has a battery in it. Duh.

Actually it does work with no battery in you ignorant newb.

thats very true...when i first got my psp i was in such a rush to charge it quickly before i had to leave i didnt put the battery in...and the light came on and everything. Then when i was getting the case and the last couple of bits together i realised i hadnt put the battery in