3.40 OE-A downgrade
so on my old pc (which had a hard drive failure) i had all of my firmwares, homebrew games, emulators, roms, you name it.... and now i kinda want to start everything back up with my psp fresh... so i was wondering how i could downgrade my psp back to 1.50 and maybe have a fresh start (since with my CFW my whole menu is screwed up for some reason unknown to me)
thanks