I have a psp 3000 with cfw 5.03 promethues-3 V2 installed. This is where I got it. http://pspslimhacks.com/custom-firmware-5-...sp2000-psp3000/ It's advertised to be able to play 6.31 games. But it doesn't work for me. When I try to start the game it says your psp is software 5.03, to start you must be at 6.31 or later. The game is dragonball z tenkaichi tag team. I'm using the umd, not an iso. Is there anyway to make it work? I thought about backing up the iso from the umd and try playing that, but I didn't want to take up unnecessary space on my memory stick, especially when I still have the umd.