VERY EASY) Install Custom Firmware 6.60 PRO B10 PSP 1000, 2000, 3000 + DL - YouTube
Wololo on Twitter: "So, my kids were playing Astro's Playroom yesterday, and when they unlocked the PSP Go, I told them "We have this thing at home, let me fetch it". I
4 Ways to Upgrade Your PSP Firmware - wikiHow
Updating The PSP System Software to 6.60 / 6.61 - pspunk
Davee teases Infinity 2.0 – Adds PSP E1000 support, provides bug fixes and other improvements! - Wololo.net
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
PSP - POPSloader 6.60 PRO (PS1 on PSP) | PSX-Place
3 Ways to Hack a PlayStation Portable - wikiHow
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
How To Install PSP 6.60 PRO-C2 Custom Firmware! - YouTube
PSP Custom Firmware 6.00-6.61
Music tracks, songs, playlists tagged 6.60 on SoundCloud