I downgraded my psp 1000 with the pandora battery and it worked fine, even with downloading and playing the games. My problem is, I ordered a replacement case for my son and since I changed it, it will still play the music on the memory card, but when I put a game on it, it attempts to load, but comes back saying "the game could not be started (80020321). I put it back together the way I took it apart even followed the video, also the damn thing wont read the umd disc either. Went and brought him another one (psp3000), had too I broke it LOL..
