hi, ive tried doing this with this guy who gave me a web to do it, http://forums.qj.net/f-psp-firmware-discussion-253/t-tutorial-271-generic-downgrader-73464.html.... but it is very difficult to get to get everything right with that way, which you have to change names which ive tried lots of times and read other peoples reviews and see what they have said. but still cant get it to work. i think i got half of it right though. can anyone have any other ideas, other websites or do the same with the web on top but explain carefully how to do it please. i dont understand it well because i tried everything it says and tried what other people said but still wont work. ive done mine to a 3.40 OE-A but this is for my freind which he is on 2.60 and i was already on 2.71. thanks.