PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
PSP Custom Firmware 6.00-6.61
PSP Custom Firmware Guide For All Models 2022 - pspunk
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
Complete Guide to PSP Custom Firmware | ReviveToday
Tutorial : install 6.61 Pro c2 cfw - YouTube
So I downloaded the 6.61 update and when I try to install it it displays this error and I don't have a custom firmware so If anyone know how to solve this
PSP Custom Firmware 6.00-6.61
Davee's Infinity CFW - Permanent 6.61 CFW on All 3000 & Go Models! | GBAtemp.net - The Independent Video Game Community
How To Update Your PSP TO 6.61 Official Firmware in 2021 - YouTube
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP: Chronoswitch 7.0 downgrader released - Wololo.net