How to Install Custom Firmware (CFW) on PSP 1000 and PSP 2000
Wireless PSP Custom Firmware installation is now possible! - Wololo.net
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
Custom Firmware 6.39 ME v2 para PSP – Joel's Blog
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
Hack MOST PSP on 6.39 with (L)CFW 6.39 ME-9.5 [Tutorial] - YouTube