Hello I have 2 psp 1 is CFW 4.01m33-2 The other i bought recently and its OFW 4.05. When i insert my pandora battery and magic memory stick the screen goes all black. (they do work becuase did the same with my 4.01m33-2 psp and it showed the screen) PS i am running psp 2001 on both one of them the CFW came with 3.60 and the other OFW came with 4.05