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
PS3 4.81 Archives - Wololo.net
How To: Jailbreak PS3 Update 4.81 OFW to CFW - PS3 Jailbreak 4.81 [DEX/CEX] - YouTube
PS3 - 4.81 FERROX + COBRA 7.50 Custom Firmware by Alexander | PSX-Place