How to hack your PSP on version 6.61 (UPDATED LINKS) - YouTube
PSPHACKS 1.02] How To Install 6.61 PRO-C2 using Infinity 2.0.3 Permanent Custom Firmware - YouTube
PSP: First hacks for the new Firmware 6.61 - PRO CFW & Downgrader updated! - Wololo.net
How To Mod Any PSP On Firmware 6.61 In The Year [2022] - YouTube
3 Ways to Hack a PlayStation Portable - wikiHow
POC: PSP 3000 CFW 6.61 Infinity
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,