PS4 7.51 system update patch notes: New firmware update improves system performance
How to Manually Update Your PlayStation 4 to the Newest 1.51 Software via USB Flash Drive « PlayStation 4 :: WonderHowTo
PS4 System Software Update 9.51 Patch Notes Today (PS5 22.01-05.02)
Image] PS4 stuck in an endless safe mode loop. Says that I need to connect a USB containing the ver 6.51 update file, I have done this and still won't start up.
Sony PlayStation 4 Pro PS4 CUH-7215B FW 6.51 - 9.00 Low Firmware | eBay
New PlayStation 4 Firmware Update 4.55 Has Been Released; Offers Even More “Stability”