Jailbreak Your PS3 and install CFW 4.87 FERROX COBRA 8.20 - YouTube
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4.87 OFW Released - CFW / Homebrew / Exploits updates for 4.87 | PSX-Place
Install PS3 CFW On All PS3 Firmwares Including 4.87 - PS3 Hacking & Guides - Cobra, Ferrox, Evilnat - YouTube