How to Get PS4 Game Updates on a 4.05 / 4.55 Jailbroken Console | PSXHAX - PSXHACKS
PS4 4.55 Full Jailbreak & Debug Settings NEWS! Updating PS4 on Lower Firmware to 4.05 Guide! - YouTube
If you own a PS4 Running firmware 4.55 or below, you are on the current golden firmware" - Still true? : r/ps4homebrew
PS4 4.55 Jailbreak Archives - Wololo.net
PlayStation 4: A look at the additional games the FW 7.50-7.55 jailbreak lets you play - Titles include TLOU Part 2, Crash Bandicoot 4, Cyberpunk 2077 Watchdog: Legion, FIFA 21, Ghostrunner, Cuphead and more! - Wololo.net
How to Jailbreak Your PS4 on Firmware 4.55 or Lower! | PS4 HEN Tutorial - YouTube