Downgrading a PlayStation 4 Go to product viewer dialog for this item.

This is not a beginner-level project. To attempt a 9.03 to 9.00 revert, you will need:

Method 1: Using a Downgrade Tool

How to Revert the PS4 to a Previous Firmware (Full Tutorial)

Part 3: Alternative Fixes (Avoid Scams)

While searching for "downgrade ps4 903 to 900 fix," you will encounter many scams. Here is how to spot them.