Picked up a PSP-1000 on firmware 1.0. Any reason to NOT be on 6.61? : r/PSP
How To Easy Jailbreak Any PSP 6.61 CFW Permanent - Consoleinfo
Upgrading PSP OFW 3.90 to 6.61 without a battery : r/PSP
How To Update Any PSP To Official 6.61 In 2018! - YouTube
Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
Custom Firmware with PRO | ReviveToday
How to Download PSP Games and Transfer them to Your PSP
How To Update Your PSP TO 6.61 Official Firmware in 2021 - YouTube
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
Sony releases first PSP patch since 2011
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
PSP 6.61 Infinity PRO Custom Firmware Tutorial! (Permanent CFW) 2018! - YouTube
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
6.61 ME & 6.61 LME now available! : r/PSP
Updating The PSP System Software to 6.60 / 6.61 - pspunk
PSP 6.61 PRO-C2 Permanent Custom Firmware - YouTube
How to downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP update: 6.61, firmware, PlayStation
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
PlayStation Guide
