Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PlayStation Guide
How To Update Official PSP Firmware In 2022 Without WIFI Access - YouTube
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
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
How to Update Your PSP to Official 6.61 Firmware (The last Official Update) - YouTube
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
How to Update Your PSP Firmware
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
Updating The PSP System Software to 6.60 / 6.61 - pspunk
How To Update Any PSP To Official 6.61 In 2018! - YouTube
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 downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
How To Update Any PSP To Official 6.61 In 2018! - YouTube