How to Mod Your PSP on Firmware 6.61 or Lower! - Infinity Permanent CFW - YouTube
How to install a permanent CFW on any PSP without hardmod. | GBAtemp.net - The Independent Video Game Community
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
Update PSP Firmware to 6.61 - YouTube
PSP 2020 Definitive Guide | How to install permanent custom firmware 6.61 PRO-C | Infinity 2 | ISO - YouTube
Brightness control v1.6 plugin for PSP ( works on 6.20 , 6.35 , 6.39 , 6.60 and 6.61 ) : r/PSP
I tried installing 6.61 PRO C2 and infinity v2.0.3 on my psp 3001 (following the instructions on the CFW guide of this subreddit) but it just shows corrupted data when I disconnect,
PSP Hacks: Trick to Access Recovery Menu & Resolve XMB & In-Game Crashes | Tutorial 2020 Edition - YouTube
I want to install Custom Firmware Permanently on My PSP Go. What are the steps? : r/PSP
Why do so many people prefer 6.60>6.61? : r/PSP
Release: Davee releases Project Infinity - 6.61 Permanent Patch for ME & PRO CFWs - Wololo.net