PSP 6.61 Infinity PRO Custom Firmware Tutorial! (Permanent CFW) 2018! - YouTube
4 Ways to Upgrade Your PSP Firmware - wikiHow
Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
PSP Custom Firmware 6.00-6.61
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
4 Ways to Upgrade Your PSP Firmware - wikiHow
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP: 6.61 Downgrader updated - Now supports PSP E1000 & firmware 6.60! - Wololo.net
PSP 6.61 Firmware Update Download
How To Update Any PSP To Official 6.61 In 2018! - YouTube
PSP Uninstall/Remove Infinity 6.61 Custom Firmware (CFW) - YouTube
Infinity 2.0 PSP CFW Installer Released! - Hackinformer
How To Update Your PSP TO 6.61 Official Firmware in 2021 - YouTube
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
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 downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
Preparing My PSP GO For Infinity 2.0 Update! (6.61 PRO C2) - YouTube
PSP 6.61 PRO-C2 Permanent Custom Firmware - YouTube
PSP: 6.61 Custom Firmware! 6.61 ME & 6.61 LME CFW! - YouTube
PlayStation Guide
How To Update Official PSP Firmware In 2022 Without WIFI Access - YouTube
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
