[OLD] How to Jailbreak Your PS3 on Firmware 4.82 or Lower! - YouTube
PlayStation 3: Sony releases Firmware 4.87 for their 14 year old console - HFW 4.87.1 is already out with SEN Enabler already being updated to spoof FW 4.87 - Wololo.net
PS3 4.81 Archives - Wololo.net
Christmas in November" release: PS3 Custom Firmware installer for Firmware 4.82 - Wololo.net
PS3 PRO MOD for PlayStation 3 v4.81 / 4.82 Firmware by LuanTeles | PSXHAX - PSXHACKS