Hi all, my psp which was on 5.00 m33-6 was reset to default and firmware 5.00 was reinstalled on it. which means i now have bad keys and cant run homebrew. i have a pandora battery but all methods i have tried (upgrading and downgrading) do not work. im at a loss because i only have a few games that will run on 5.00 and i cant update (i get the drnf... error) or use homebrew. any help would be much appreciated. thank you.