Quote Originally Posted by Video_freak
Once you downgrade, update to 2.0 then downgrade again to get a "clean" firmware.
what if the psp is already a 2.0 firmware ?? can it be downgrade from that to 1.5 and have a clean 1.5 ? or should i upgrade to 2.5/2.6/2.71 and downgrade to 1.5 and then upgrade back to 2.0 then down to 1.5 ????