Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
Updating The PSP System Software to 6.60 / 6.61 - pspunk
System Update
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Digiex
Upgrading PSP OFW 3.90 to 6.61 without a battery : r/PSP
Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
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
PSP 6.61 Custom Firmware Install on any PSP - PSP, PSP Slim, PSP 3000, PSP Go & E1000 | Digiex
PSP: 6.61 Infinity - Davee's 'Permanent Patch' for System Software 6.61 - Wololo.net
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
Hi guys i have 2 psp PSP 2004 and PSP 3004 i cant update the Blue one to latest firmware 6.61 and i cant find available latest firmware for the 2004 : r/PSP
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP: Infinity 2.0 – Permanent 6.61 Custom Firmware for every PSP! - YouTube