This will show you how to make a pandora battery in under 20 minutes.
What you need|
Spare battery (original SONY battery works great)
Memorystick (i used a 1gb)
First get hellcat's recovery flasher 1.60 then boot that up. once thats running hit X on i agree, now take me to the program. once on the main menu go down to the option that says make battery pandora one. Hit x now you should have a Pandora battery.
now to make the magic memorystick get the ofw 5.00 update rename it to 500.PBP copy the 500.pbp file to the root of your memorystick now download a program called RainsUltraLiteMMS 1.2 then hook up your psp to your pc then run RainsUltraLiteMMS 1.2 make sure the format memorystick option is highlighted then click on make MMS and if all goes well you should have a working pandora battery and magic memorystick which can be used to downgrade any OFW. To run Pandora fully turn off your psp then turn on the psp while holding the L button this will give you some options
install 5.00 OFW
install 5.00 M33
dump Naand or something like that.
To downgrade just hit x on install 5.00 m33 and it will automatically install CFW 5.00 m33-4 on any ofw even 5.51.