PSP Custom Firmware Guide For All Models 2022 - pspunk
Special Edition. Modded Sony Final Fantasy PSP 3000. 6.61 CFW - Etsy
How to Mod Any PSP on Firmware 6.61 or Lower! - Infinity 2.0 Permanent CFW - YouTube
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
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,
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PSP: Infinity 2.0 – Permanent 6.61 Custom Firmware for every PSP! - YouTube
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
Got my PSP GO Today :) it has custom firmware 6.61 : r/PSP
Upgrading PSP OFW 3.90 to 6.61 without a battery : r/PSP
Modded Sony PSP 3000. Emerald Green. 6.61 CFW Mod. 128gb. - Etsy Hong Kong