How to downgrade your PSP Firmware with Chronoswitch - Darthsternie's Firmware Archive
How to Downgrade PSP Firmware - Nerd Bacon Reviews
How to Downgrade PSP Firmware - Nerd Bacon Reviews
How to Uninstall a CUSTOM FIRMWIRE From Your Psp and Install a OFFICIAL 1.5 Firmwire. - Instructables
How To Downgrade PSP 6.60 To 5.00 m33-6 CFW (Tutorial) - YouTube
How To Downgrade PSP 6.61 To 6.60! (Chronoswitch Downgrader) 2017! - YouTube
Got this baby. System version is 6.39. Never been hacked. What should I do to hack it? 6.60 or 6.61? Confirmation button is O. Can I switch it to X with Infinity
Need help! Psp go downgrade 6.60 to 6.20 so I can run a CfW | GBAtemp.net - The Independent Video Game Community