PS4 System Software Update 9.0 Apparently Fixes CMOS Problem
Ask PlayStation UK on Twitter: "The PS4 system software version 9.60 is out today. Always update your system software to the latest version. If the automatic update does not start, you can
PS4: How to manually update to Firmware 9.00 - Wololo.net
PS4 Firmware Update 8.50 Is Available to Download Now - Push Square
PS5, PS4 System Software Updates Roll Out Today | PlayStation Fanatic
PS4 update 4.0 features: HDR, Quick Menu and folders | WIRED UK
PS4 is the king of software with 1.5 billion games sold, dethrones PS2 | TweakTown
PlayStation 4 to get refreshed UI, folders & more with 4.0 software - FlatpanelsHD