Hey, everyone I recently purchased a copy of Lumines to downgrade my PSP 3.40, i downloaded the 3.50 firmware update, yet when i select the upgrade it appears as a corrupt icon, that and a message appears telling me the very same thing. Odd since its an official sony upgrade. Can anyone tell me how to fix this or send me atleast a link to a good updater. Honestly i really am confused on this. Plz any help would be appreciated, afterdawn has come through for me many many times. Again thanks.