How to Restore Default Settings
1. From the Home screen Dashboard press Up on the controller.
2. Scroll to Settings and press the X button.
3. Scroll to Initialisation and press the X button.
4. Scroll to Restore Default Settings and press the X button.
5. Scroll to Restore and press the X button.
6. Scroll to Yes and press the X button.
7. Press the X button. The PS4 will restart.