20.3 Resetting the Navigation System
If the navigation system or the connected device fails to operate properly, reset the navigation system.
- Press the <Reset> button.
The unit returns to factory settings.
DNN990HD
![7782.png](image/7782.png)
DNN770HD
![8209.png](image/8209.png)
NOTE
- Disconnect the USB device before pressing the <Reset> button. Pressing the <Reset> button with the USB device connected can damage the data stored in the USB device. For how to disconnect the USB device, see How to Play Media.
- When the navigation system is turned on after resetting, the Initial SETUP screen appears. See Initial setup.
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