Updating The PSP System Software to 6.60 / 6.61 - pspunk
VERY EASY) Install Custom Firmware 6.60 PRO B10 PSP 1000, 2000, 3000 + DL - YouTube
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Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
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PSP Custom Firmware 6.00-6.61
How to upgrade your PSP to firmware 6.60 - YouTube
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
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PSP Official Firmware - Hackinformer
Sony Updates Its PSP Console with Firmware 6.61 – Download Links Available
Updating The PSP System Software to 6.60 / 6.61 - pspunk
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
How To Update Psp System Software 6.60?
HELP] downgrading PSP 2000 using chronoswitch v7 from 6.61 to 6.60 - error CAAFFFFFCF7 : r/PSP
Tutorial] Install PSP 6.61 Pro-C Infinity Custom Firmware | GBAtemp.net - The Independent Video Game Community