Minor' PSP firmware update coming soon | Engadget
How do I know what Sony PSP firmware version I have? - Ask Dave Taylor
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP System Update 6.61 - YouTube
PSP Firmware update manually - here's how
PSP update: 6.61, firmware, PlayStation
PSP Firmware 6.35 Now Live, Adds Capability for Unlimited Cloud Music Service via Qriocity - SonyRumors
PSP System Software Update Disc Ver. 3.11 (Japan) : Free Download, Borrow, and Streaming : Internet Archive
System Update
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP update: 6.61, firmware, PlayStation
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
/psp---sony-playstation-portable-console-534194895-5ba7b4ee4cedfd0025962aa2.jpg "PSP FAQ - How Do I Update My PSP Firmware?")
PSP FAQ - How Do I Update My PSP Firmware?
4 Ways to Upgrade Your PSP Firmware - wikiHow
How to Update Your PSP Firmware
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
PlayStation Portable system software - Wikiwand
PSP firmware 3.72 available, doesn't do much ... for now – Destructoid
How to Update Your PSP Firmware
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
How to Downgrade PSP Firmware - Nerd Bacon Reviews
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
4 Ways to Upgrade Your PSP Firmware - wikiHow
