The PS4 downloads the specific, older version of the game through the proxy. Key Warning
: This is a popular tool that acts as a local proxy server. It tricks the PlayStation into thinking the older version of a game is the "current" update, allowing you to download and install it. How it Works : ps4 tool downgrade
If you see a “PS4 tool downgrade” that claims to work via USB or software alone—it’s fake. The only real downgrade requires soldering, backups, and serious electronics skill. For most users, your best bet is to either stay on your current firmware or buy a pre-jailbroken console. The PS4 downloads the specific, older version of
How to Revert the PS4 to a Previous Firmware (Full Tutorial) How it Works : If you see a
The PS4 operating system is encrypted. When Sony releases a new firmware update, the decryption keys often change. The console's hardware processor (the "Belize" or " aeolia" security chip) is hardcoded to look for these specific keys.
Are you looking to downgrade your to install a jailbreak, or just a specific game to use an older patch? How To Play Older Versions Of PS4 Games [No Jailbreak]
A true downgrade would restore that ability—but it’s not simple.