PS3 4.81 System Software Update PS Vita 3.63 Update DETAILS - YouTube
PS3 - [TuT] How to sign in on OFW 4.81 or 4.82 & activate your system | 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
How to Jailbreak a PS3 (with Pictures) - wikiHow
PS3 Firmware Update 4.81 Improves “Quality” of System Performance
PS3 4.81 OFW | Gamers Alive
Sony PlayStation 3 CECHE01 System 80GB Backwards Compatible PS1/PS2/PS3 4.81FW | eBay
PS3 4.81 Archives - Wololo.net
PS3 4.81 exploit: IDPS Dumper released, and latest status of the exploit - Wololo.net
Sony Rolled Out Firmware 4.81 for Its PlayStation 3 Console - Download Now
CCCheaterX Tool (Unofficial Update) for PS3 CFW 4.81 by Darkxex | PSXHAX - PSXHACKS