hello guys . i have psp 3006 wid 6.35pro firmware and i m trying to downgrade it to fw 6.20 . I followed this tutorial http://forums.dashhacks.com/f133/downgrading-from-firmware-6-3x-to-firmware-6-t296612/
and getting ERROR , updater MD5 mismatch !
the module of my psp is 9g
so can u pls tell...