Just use hardware reset.

1. If the screen drifts or malfunctions, you can use a thin hard object such as a paper clip or toothpick to poke the RST hole (reset button) of the DVD to restore the machine to its original state.

2. Removing the car's battery and live wire stakes has the same meaning as the reset mentioned above. Note: Generally, it can be installed back after removing the battery and live wires for 30 seconds.

Use the above two methods to see if your DVD navigation has returned to normal. If it is abnormal, it is usually because the wiring of your touch screen or the contacts in the screen are broken, maybe many Car enthusiasts think that the screen of the DVD navigation is the same as that of the mobile phone. It is very expensive to replace it, so it is better to buy a new navigation.

The reason why our mobile phone screen is expensive is because the mobile phone screen is a capacitive multi-touch integrated screen, while the screen of our DVD navigation is a two-layer resistive display and a touch screen, so we use DVD navigation It is very cheap to replace the touch screen if it can display normally but the touch screen is not working.