Is this 4.66 firmware ps3 super slim worth anything? hasn't been updated since 2014 and is in good condition : r/PS3
PlayStation 3 technical specifications - Wikipedia
Console PS3 80go Custom Firware Cobra Ferrox 4.82
I purchased a PS3 backward compatible from ebay for a good price and I'm impressed how clean it is. However... It's still on firmware 2.50. Should I update the firmware? : r/PS3
PS3 Fat 80gb Firmware 3.55 Jailbreak, Video Gaming, Video Game Consoles, PlayStation on Carousell
How to bypass update 4.86 on ps3 fat? Has firmware: Cobra 8.01, and mmCM Version 4.85.01 : r/ps3hacks
Downgradable PS3 Models & Base Firmware with MinVerChk | PSXHAX - PSXHACKS