I' just recently had to buy a new psp because my old one broke due to an unexpected flood in my basement. I have already tried downgrading to earlier firmware but it says that my psp will not allow downgrades. Is there anyway that I can alter my psp or download something that will allow such firmware on a brand new psp? My goal is to play Monster Hunter 3rd (english patched) but it says the files are corrupted on my current firmware. Currently I have 6.60 Pro B9 CFW and I need to downgrade quite far. Please help. Thanks.