Rebug 4.81.1 REX for PS3 CFW Installation - YouTube
How To Downgrade PS3 4 81 To 3 55 and Install 4 80 CFW Step by Step - YouTube
DarkNet 4.81 CEX V1.00 CFW and PS3 NOR / NAND Auto Patcher v4.81 | PSXHAX - PSXHACKS
Playerkp420 4.81 CFW Cobra 7.3 PS3 Custom Firmware is Released | PSXHAX - PSXHACKS
PS3 - 4.81 CFW - FERROX Standard Edition (v1.00) by Alexander | PSX-Place
Got all this for 90CAD. It's on version 4.81. My FAT PS3 is on 4.84 REBUG. FAT PS3 won't let me sign into PSN until I update...does another CFW exist or should
Playerkp420 4.81 CFW (Non-Cobra) PS3 Custom Firmware is Released | Page 2 | PSXHAX - PSXHACKS