Q: hi i have a psp slim cfw 3.90, jus wonderin is it possible to upgrade to a cfw or downgarde and then upgrade , any help appreciated thnx in advance
A: u cant upgrade or downgrade with ofw alone(unless u have 3.50 and below) or you buy a pandora battery, and use this new program wich can write the msipl file to the memory stick without a psp with cfw. or u can send it 2 me, but i dont think u wanna do that lmao. buut if u want more detail msg me. dueces