PS3 - 4.81 CFW - FERROX Standard Edition (v1.00) by Alexander | PSX-Place
PS3 CFW SPY 4.81 CEX Update by DarekSpy, Works with MultiMAN 4.80 | PSXHAX - PSXHACKS
PS3: Official Rebug 4.81-REX/D-REX with COBRA 7.31 released - Hackinformer
Playerkp420 4.81 CFW (Non-Cobra) PS3 Custom Firmware is Released | Page 2 | PSXHAX - PSXHACKS
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
Don_Key on X: "PS3 - [CFW] 4.81 FERROX COBRA (7.3) CFW by Alexander: https://t.co/G2hUvAH94u https://t.co/Sk851I0rN7" / X
How to jailbreak ps3 4.81 with usb easy step!! - YouTube