Release: Davee releases Project Infinity - 6.61 Permanent Patch for ME & PRO CFWs - Wololo.net
Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | Page 3 | GBAtemp.net - The Independent Video Game Community
Picked up a PSP-1000 on firmware 1.0. Any reason to NOT be on 6.61? : r/PSP
HowTo]PSP 3004 Flashen und CWCheats/screenshot Plugin in 5minuten - YouTube