How to Install Custom Firmware (CFW) on PSP 1000 and PSP 2000
Just bought a PSP 1004! this thing is in almost excellent shape, everything is working. its on firmware 2.81! i am gonna put CFW on it. I owned a Street model(E1004) before
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Page 2 | Digiex
3 Ways to Hack a PlayStation Portable - wikiHow
OLD] How to Mod Your PSP on Firmware 6.61 or Lower! - Infinity Permanent CFW - YouTube