Playerkp420 4.81 CFW Cobra 7.3 PS3 Custom Firmware is Released | PSXHAX - PSXHACKS
Can't connect my PSP to my PS3 (running cfw 4.81) tried different cables, is it an update thing? : r/PSP
Rebug 4.81.1 REX for PS3 CFW Installation - YouTube
PS3Xploit 3.0 "HAN" released, compatible with all PS3s on firmwares 4.81/4.82 - Wololo.net
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
CCCheaterX Tool (Unofficial Update) for PS3 CFW 4.81 by Darkxex | PSXHAX - PSXHACKS
PS3 - 4.81 CFW - FERROX Standard Edition (v1.00) by Alexander | PSX-Place