Preparing My PSP GO For Infinity 2.0 Update! (6.61 PRO C2) - YouTube
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
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
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
Update to 6.61 Infinity? : r/PSP
How To Update Your PSP TO 6.61 Official Firmware in 2021 - YouTube