Sun Jun 26, 2005 11:11 am by Danopoly
That is true, you cannot downgrade your PSP AT ALL! So far in this time. But just recently, the PSP-DEV's said that its was possible to crack 1.51 & 1.52. They are still working on it. So all we have to do is wait and pray.
but 1.5 is downgradable. Its called FirmwareDump. Made my the japanese to get rid of their 1.50 (this was during the time of the MSWSAP)
I still have it on my computer, but i dont need it anymore.