Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PSP Firmware Update 6.61 | GBAtemp.net - The Independent Video Game Community
Can someone help me update my psp 1001 from 2.80 to 6.61 : r/PSP
I tried installing 6.61 PRO C2 and infinity v2.0.3 on my psp 3001 (following the instructions on the CFW guide of this subreddit) but it just shows corrupted data when I disconnect,
PSP: 6.61 Infinity - Davee's 'Permanent Patch' for System Software 6.61 - Wololo.net
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP: Chronoswitch 7.0 downgrader released - Wololo.net
Custom Firmware with PRO | ReviveToday
Mandatory PSP Firmware 6.61 Released Today, First in Three Years - Hardcore Gamer