Hack, Install Custom Firmware on Sony PSP-E1004 Street
4 Ways to Upgrade Your PSP Firmware - wikiHow
PSP Custom Firmware Guide For All Models 2023 - pspunk
PSP: 6.61 Infinity - Davee's 'Permanent Patch' for System Software 6.61 - Wololo.net
4 Ways to Upgrade Your PSP Firmware - wikiHow
VERY EASY) Install Custom Firmware 6.60 PRO B10 PSP 1000, 2000, 3000 + DL - YouTube
PSP 6.61 Infinity Hybrid Firmware by Davee, LME & PRO CFW Patch | PSXHAX - PSXHACKS
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,
GitHub - Klozz/PSP_Pro_customfirmware: Source code of PSP custom firmware PRO