News: FERROX 4.85 CFW with Cobra 8.20 released for the PlayStation 3 and RetroArch 1.8.1 is out with accelerometer/gyroscope support on PSVita & Switch, further improvements to mobile UI and more! - Wololo.net
PS3 System Software 4.84 Update Live,Working on OFW | ConsoleCrunch Official Site
PSA: Don't upgrade your PS3 to 4.83 if you want to use CFW : r/emulation
Spoof Your PS3 Firmware Version To 4 83 With SEN Enabler - YouTube
Can you downgrade PS3?
GitHub - ScriptedArtsOfficial/PS3-CFW-XENON: This is a Custom Firmware for the Playstation 3 that I am working on currently whenever I have spare time,