My brother just upgraded my psp fat (psp 1000) to firmware 5.50 using psphack's Custom Firmware 5.50 Gen-D. He followed the instructions and when the firmware was installed, it couldn't play games anymore so he booted it again and chose the second option "Flash install firmware 5.50". it installed successfully but here's the problem: we can't access the recovery menu(hold R1+power including the plus 5 secs). we tried running the program again but we got a message "File is corrupt" so we can't run it anymore WTF?! Can anybody help me? is there a place here in cebu that can help me with this?