Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Digiex
Davee's 6.61 Infinity project update - PSP Go
PSP update: 6.61, firmware, PlayStation
Updating The PSP System Software to 6.60 / 6.61 - pspunk
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
Davee's Infinity CFW - Permanent 6.61 CFW on All 3000 & Go Models! | GBAtemp.net - The Independent Video Game Community
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
How to Download PSP Games: 14 Steps (with Pictures) - wikiHow
How To Downgrade PSP 6.61 To 6.60! (Chronoswitch Downgrader) 2017! - YouTube
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Digiex
How To Update Any PSP To Official 6.61 In 2018! - YouTube
PSP: Infinity 2.0 – Permanent 6.61 Custom Firmware for every PSP! - YouTube
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
PSP Firmware Update 6.61 Goes Live, is Mandatory
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
Picked up a PSP-1000 on firmware 1.0. Any reason to NOT be on 6.61? : r/PSP
4 Ways to Upgrade Your PSP Firmware - wikiHow
How to downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive