Have a PSP on OFW 6.20. What should I upgrade to? : r/PSP
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
How to Downgrade PSP Firmware - Nerd Bacon Magazine
The Zett on X: "Forcing FW 6.20 onto a 09g decice causes a few strange quirks, such as the Standby Mode not working and crashing the PSP (can be fixed with a
PRO Firmware PSP - GameBrew
Update from 6.60 PRO-B9 CFW to PRO-C2 on PSP 3000 | PSX-Place
Infinity 2.0 released for the PSP, allows for persistent CFW on all models of PSPs on 6.60 and 6.61 | Page 2 | GBAtemp.net - The Independent Video Game Community
4 Ways to Upgrade Your PSP Firmware - wikiHow
Pandora's Battery (unbrick Your PSP) | Hackaday
HOW TO INSTALL 6.20 PRO B10 PERMANENT PATCH ON ANY PSP MODEL *NO PANDORA* - YouTube
PlayStation Portable system software | Ultimate Pop Culture Wiki | Fandom
PSA: PSP firmware 6.20 now available for download – Destructoid
The Zett on X: "I've updated Chronoswitch to v7.2: - Added 07g support. - Fixed IDXFFFFFFFF & CAAFFFFFCF7 errors, by replacing the personal 'factory FW' check, with a generic 'minimum FW' check
6.37 » Brewology - PS3 PSP WII XBOX - Homebrew News, Saved Games, Downloads, and More!
Updating An Old 6.20 CFW PSP To The Latest 6.61 CFW! - YouTube