PS3 Update to System Software 4.89: Here's a Full Guide for You
PS3 System Software Update (v3.70) – PlayStation.Blog
PS3 System Software Update 4.90: What's New and How to Update | TheBadGamer
How to do a system update on ps3 - YouTube
I don't know...do I update? : r/PS3
Sony PlayStation 3 Software Update Official PS3 System Updates USB Drive | eBay
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
PS3 Gets A New Firmware Update - GameSpot
Playstation 3 System Software Update Version 2.0 Disc | eBay