A common universal programmer used to dump and patch the Syscon chip.
Whether you are looking to jailbreak your console or simply play an older version of a game to avoid bugs, "downgrading" on PS4 is a major topic in the homebrew community. However, it's important to distinguish between (which is high-risk and complex) and game version downgrading (which is much simpler). 1. Understanding PS4 Firmware Downgrading (Reverting) downgrade tool ps4 repack
The PS4 has two "slots" for firmware on its motherboard: Slot A (active) and Slot B (backup/inactive). When you update, the new firmware goes into one slot, while the previous version stays in the other as a failsafe. A common universal programmer used to dump and