Sony PSP CFW 6.61 on PSP-1000 and PSP-3000 - YouTube
GitHub - cfw-guide/psp.cfw.guide
This popular 2021 anime features an actual PSP CFW Installer from ages ago - Wololo.net
PSP CFW Mail in Modding Service - Etsy
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
Release: Infinity 2.0 – Enables Permanent 6.6x Custom Firmware for all PSPs! - Wololo.net
PSP Custom Firmware 6.00-6.61
4 Ways to Upgrade Your PSP Firmware - wikiHow
How to Download PSP Games and Transfer them to Your PSP
How to Install custom firmware on a PSP « PSP :: WonderHowTo
Easy Guide to install LME 2.3 cfw on your PSP ! - YouTube