PS3: Official Rebug 4.81-REX/D-REX with COBRA 7.31 released - Hackinformer
PS3 System Software Ver. 4.81 - XTREME PS
My brother dropped off our old PS3 collection (left). On the right is my collection since this year. It's a slim model on os version 4.81. Do you think it's worth it
Playerkp420 4.81 CFW (Non-Cobra) PS3 Custom Firmware is Released | PSXHAX - PSXHACKS
How To: Jailbreak PS3 Update 4.81 OFW to CFW - PS3 Jailbreak 4.81 [DEX/CEX] - YouTube
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 exploit: IDPS Dumper released, and latest status of the exploit - Wololo.net
PS3 Firmware 4.82 released, one year after last update & mere days after 4.81 exploit revealed - Wololo.net
How to Jailbreak a PS3 (with Pictures) - wikiHow
PS3 4.81 Archives - Wololo.net
Injecting PS3 CFW Games on OFW 4.81 Without a CFW Console Guide | PSXHAX - PSXHACKS
Sony PlayStation 3 Firmware 4.90 Download | TechSpot