Firmware 4.83 Is Available for Sony PlayStation 3 Systems - Update Now
Mandatory Playstation 3 firmware 4.60 is now available! - Wololo.net
How to install PS3 firmware 4.55 - YouTube
PS3 CFW Rogero 4.55 V1.00 - Consoleinfo
I don't know...do I update? : r/PS3
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 System Update v4.88 Sneaks Out - Download Links are Here - Terminal Gamer - Gaming is our Passion | PS4, PS5, Xbox One X/S, Nintendo Switch, Oculus Quest