Updating The PSP System Software to 6.60 / 6.61 - pspunk
Proto:PlayStation Portable - The Cutting Room Floor
System Update
How to Update Your PSP Firmware
4 Ways to Upgrade Your PSP Firmware - wikiHow
Updating The PSP System Software to 6.60 / 6.61 - pspunk
PSP update: 6.61, firmware, PlayStation
How do I know what Sony PSP firmware version I have? - Ask Dave Taylor
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP Custom Firmware 6.00-6.61
PSP software update features XMB search, Internet security – Destructoid
PSP Firmware Update Cannot be Started - Techyv.com
Picked up a PSP-1000 on firmware 1.0. Any reason to NOT be on 6.61? : r/PSP
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
4 Ways to Upgrade Your PSP Firmware - wikiHow
PlayStation Portable system software - Simple English Wikipedia, the free encyclopedia
Complete Guide to PSP Custom Firmware | ReviveToday
PRO Firmware PSP - GameBrew
Fix Corrupted Data and Recover Files from PSP Memory Stick - EaseUS
The Consumer Electronics Hall of Fame: Sony PlayStation Portable - IEEE Spectrum
Risen from the dead: PSP Firmware 6.61 is now available! - Wololo.net
:max_bytes(150000):strip_icc()/psp-1000-5bf874fdc9e77c0051ab4a48.jpg "A Guide to the Sony PSP (Playstation Portable)")
A Guide to the Sony PSP (Playstation Portable)
Sony marks PSP 3000 release with firmware update that adds direct access to PlayStation Store - CNET
