Depending on your goal, here is your real-world action plan.
. Sony’s security prevents installing older firmware over a newer one to stop jailbreaking. ps4 downgrade 1302 to 900
This is the only known way to roll back firmware, and it involves physical modification of the console's motherboard. ConsoleMods Wiki How it Works : The PS4 stores the current firmware and the immediately preceding Depending on your goal, here is your real-world action plan
: You can check your console's error history logs to see a record of which firmware versions were previously active on your device. This is the only known way to roll
There is a legitimate technique called Firmware Revert , but it requires advanced micro-soldering skills and specific hardware.
The short answer is: Here is the reality of the situation and what your options actually are. Why Downgrading is So Difficult
: The method is only compatible with consoles using a Renaissance Syscon chip (model numbers starting with A0). Warning: Avoid "One-Click" Scams