The last missing piece: Permanent 6.60 CFWs for all PSPs in near future!? - Wololo.net
How To] Downgrade Firmware on PSP Fat/Slim From 6.60 to 6.XX In Less Than 7 Minutes - YouTube
Playstation Portable (PSP) softmod - Dreamcast.nu
Mod a PSP | Super Easy | 6.60 PRO-C - YouTube
PSPHACKS 1.01] How To Install 6.60 PRO-C Fix 3 using Infinity 2.0.3 Permanent Custom Firmware - YouTube
Guide How to UPDATE to Latest Firmware 6.61 For PSP and How to Fix Error Update 9.90 | Guide How to UPDATE to Latest Firmware 6.61 For PSP and How to Fix
Mod a PSP | Super Easy | 6.60 PRO-C - YouTube
Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | GBAtemp.net - The Independent Video Game Community
The last missing piece: Permanent 6.60 CFWs for all PSPs in near future!? - Wololo.net
PSP Custom Firmware 6.00-6.61
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community