Ps4 Tool | Downgrade High Quality

Reverting the system software is significantly more difficult than updating it. Sony does not provide an official way to downgrade firmware through the PlayStation Support settings.

In the context of video game consoles, "downgrading" refers to the process of reverting the system's operating system (firmware) from a newer version to an older one. ps4 tool downgrade

Attempting a downgrade using unverified “tools” can: ps4 tool downgrade