How To Mod Your PSP - CFW 6.61 PRO Infinity - YouTube
Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | Page 2 | GBAtemp.net - The Independent Video Game Community
How to Mod Any PSP on Firmware 6.61 or Lower! - Infinity 2.0 Permanent CFW - YouTube
PSP Custom Firmware 6.00-6.61
PSP Custom Firmware 6.00-6.61
How To Easy Jailbreak Any PSP 6.61 CFW Permanent - Consoleinfo
Sony PSP CFW 6.61 on PSP-1000 and PSP-3000 - YouTube
Sony PSP CFW 6.61 on PSP-1000 and PSP-3000 – McRetro.net