Hello everyone is it possible to downgrade my 5.51 firmware into 4.(something)? my psp is (psp 2003) I told my friend to upgrade my psp with the latest version of firmware and i forgot to ask the pros and cons of this firmware! And now im having problems with games... my cso's and iso's doesnt work with this firmware! Is it possible to downgrade it back to 4.(something) firmware again? THANKS!
i have the same problem as you...when i upgraded to 5.51 and it took off my CFW causing my iso and cso to not work also if you find anything please repost it here...from what i'm told we may have no choice except for a PANDORA.