I tried to update my brothers phat 1000 from 3.51 m33-7 last night. I don't know much about the scene anymore and everything I tried to update to failed until I eventually tried a 3.52 m33 upgrade and now I can't get into the XMB. It just stays on a black screen for 20 seconds or so then powers off. I can get into the m33 recovery menu and run the hellcats recovery flasher but it says I need to be at least 2.71 to work. Is there ANYTHING I can do to recover with such and old firmware? I don't have a pandora battery but I have another PSP phat 1000 with Promethius loaded. Can I make a pandora battery to recover the other one then get it back to normal for my PSP? Or is the pandora mod one way? If I need to I will just have to buy a pandora battery and stick.