Custom firmware help

Hey, Its been a while since ive put a custom firmware on a psp. I have the pandora battery still. I just need a guide to do the rest. I cant find the guide i used like 2 years ago. whats the best guide to use now adays for the best starting firmware. Let me know. Thanks

Pandora method and 5.00 M33 is the best. Gen D has no internet play (stupid if you ask me) so go find the m33 installer (make a magic memstick) and go for it! best mms maker was rainlight or something like that.