EP 1) Full PS3 4.82 - 4.89 Jailbreak Tutorial - YouTube
How to Upgrade PS3 Official Firmware 4.82 - YouTube
PlayStation 3: Sony releases Firmware 4.86 for their 13 year old console - HFW 4.86 released, SEN Enabler updated & PS3HEN to be updated soon due to no kernel changes! - Wololo.net