Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
How to Download PSP Games and Transfer them to Your PSP
Updating The PSP System Software to 6.60 / 6.61 - pspunk
PSP 6.61 PRO-C2 Permanent Custom Firmware - YouTube
Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
PlayStation Guide
How to Update Your PSP Firmware
PSP Uninstall/Remove Infinity 6.61 Custom Firmware (CFW) - YouTube
How To Update Any PSP To Official 6.61 In 2018! - YouTube
Picked up a PSP-1000 on firmware 1.0. Any reason to NOT be on 6.61? : r/PSP
Updating The PSP System Software to 6.60 / 6.61 - pspunk
PSP update: 6.61, firmware, PlayStation
4 Ways to Upgrade Your PSP Firmware - wikiHow
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 Update Any PSP To Official 6.61 In 2018! - YouTube
Complete Guide to PSP Custom Firmware | ReviveToday
Upgrading PSP OFW 3.90 to 6.61 without a battery : r/PSP
4 Ways to Upgrade Your PSP Firmware - wikiHow
Install PSP 6.61 Pro-C Infinity Custom Firmware | GBAtemp.net - The Independent Video Game Community
How to downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
