Using the guide "Make the perfect Pandora".
Basically I upgraded to 5.01 without realising that it would stop my CFW. (I didn't CFW the PSP bought it off someone who did.) And obviously it's put me in a predicament. Been advised to make a Pandora's battery to fix it, have got the spare battery.
I'm currently on step one using Hellcat's pandora installer. I put it onto the memory stick and whenever I try to launch it, it claims that the data is corrupted. This has happened every time I've tried to do this process and am not sure what to do.
Any help would be appreciated.