No Applicable Update Data Was Found - PS3 [SOLVED]
PS3 System Software 4.82 Update Live, Don't Update Your Firmware! | PSXHAX - PSXHACKS
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
How to Download PS3 Firmware & Installation Guidelines