System Update SONY PlayStation 3, how to - HardReset.info
PlayStation 3 System Software Update 3.72 Now Live (updated) | by Sohrab Osati | Sony Reconsidered
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
SONY Torne Update Disk Ver.4.0 & PS3 System software Ver.4.11 Off-line | eBay