how can you downgrade a 4.05 psp firmware to3.03

I had a friend who upgraded my psp firmware and now my psp sometimes freezes when I put my game in, and my psp now don't want to read the game. What should I do? T-T

I love the good ol' U.S.A.!!2008-08-11T16:12:53Z

Favorite Answer

That has nothing to do with you Firmware update. I updated mine and its fine. Unless you have the original psp. I have the slim and I have no problems at all.