So lets say I was playing a game on my psp that was a 2.71 and I saved the game then I made a back up of all the files that was on my psp and well in the end I upgraded my psp to a 3.40oe-a and now I try putting the saved files back onto the psp and continue the game I was playing but it wont work. The game works but the psp has no memory of the game. Even though I took the files out of "SAVEDDATA" (or whatever that folder's name is I forget) and put it in the same spot on my psp that is a 3.40 and then I go to my psp and look to see if I can see the saved data but its not there. But here is the funny thing I put the same files on another psp and the boom there you have it, I have all of my saved games on there. Any thoughts?/answers?