Firmware Update Guide: PS3/PS4 To Wii U Super Converter | PDF | Wii | Play Station 3
PS3 IDPS Dumper for Firmware 4.81 incoming... - Hackinformer
PlayStation 3 system software - Wikipedia
PS3: CFW Evilnat 4.90 released - 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
PS3 How To Put The Update Firmware On USB Tutorial - YouTube