Hey, I have a psp that was on 6.6 CFW for a while but all my games suddenly started giving me an error when I tried to run them. So, I decided to reinstall 6.6, but when I tried running proupdate after uninstalling it gave me an empty black screen. I downgraded to 6.2 OFW and using the 6.2 CFW but it still gives me the black screen. I also tried formatting the memory stick, which did nothing. Any ideas?