I have a PSP 1000 running Prometheus 5.50 and I was thinking if I should install a new CFW (can I even do that?). I have a pandora battery but only used it to install the CFW 2 or 3 years ago. I don't remember anything at all so I would really appreciate your opinion on this. Prometheus plays fine most of the games so I'm not really that eager to update. :/ Thanks!