PS3 Update 4.84 released, does not patch StoreHaxx - Wololo.net
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
How to get PS3 Firmware update for installing on PS3 or PS3 emulator - YouTube
PS3 Custom Firmwares (CFWs) : Free Download, Borrow, and Streaming : Internet Archive
PlayStation 3 system software - Wikipedia
PS3 System Software Update (v3.70) – PlayStation.Blog