Installing Custom Firmware on a PSP : 9 Steps - Instructables
Got this baby. System version is 6.39. Never been hacked. What should I do to hack it? 6.60 or 6.61? Confirmation button is O. Can I switch it to X with Infinity
Wireless PSP Custom Firmware installation is now possible! - Wololo.net
Amazon - Hacking the PSP: Cool Hacks, Mods, and Customizations for the Sony Playstation Portable (ExtremeTech): Auri Rahimzadeh: 9780471778875: Books