If you find a "software downgrader" for 10.50 → 9.00, it is either malware that will encrypt your PC or a tool that will corrupt your hard drive. Sony’s security chain is cryptographically locked. No software exploit can bypass the fuses.
If you are an advanced electronics hobbyist with a soldering iron, you can downgrade. This is not a software hack; it is a hardware bypass. ps4 downgrade 10.50 to 9.00
The possibility of downgrading a PlayStation 4 from firmware 10.50 to 9.00 is one of the most discussed topics in the console modding community. This interest stems from the fact that firmware 9.00 is a "golden" version, allowing for the stable pOOBs4 jailbreak, while 10.50 remains largely locked down. Understanding the PS4 Downgrade Process If you find a "software downgrader" for 10
If you are currently on 9.00 or lower, Do not update. Disconnect from the internet. You are sitting on gold. If you are an advanced electronics hobbyist with