How to downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
How To Update Any PSP To Official 6.61 In 2018! - YouTube
PSP 6.61 Firmware Update Download
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
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
How to Update Your PSP Firmware
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 6.61 PRO-C2 Permanent Custom Firmware - YouTube
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
Custom Firmware with PRO | ReviveToday
PlayStation Guide
PSP update: 6.61, firmware, PlayStation
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
