The current firmware data is "dumped" (copied) from the chips to a computer.
The PS4 downgrade tool is a software utility that allows users to downgrade their PS4 console to a previous firmware version. This can be useful for various reasons, such as: downgrade tool ps4
On eBay or modding forums, you can find PS4s already on 5.05, 6.72, or 9.00. Prices range from $150 (original) to $350 (Pro). This is cheaper than buying a tool and risking your main console. The current firmware data is "dumped" (copied) from
Most users want to revert to "golden" firmware versions like 9.00 , 11.00 , or 13.00 because these have stable jailbreak exploits. Essential Downgrade Tools downgrade tool ps4