Gave my permanent CFW an update to Infinity 2.0 : r/PSP
Davee's Infinity CFW - Permanent 6.61 CFW on All 3000 & Go Models! | GBAtemp.net - The Independent Video Game Community
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
Tutorial] Install PSP 6.61 Pro-C Infinity Custom Firmware | GBAtemp.net - The Independent Video Game Community
How To Mod Your PSP - CFW 6.61 PRO Infinity - YouTube
How to Mod Any PSP on Firmware 6.61 or Lower! - Infinity 2.0 Permanent CFW - The GamePad Gamer