The phenomenon of black screen on the car navigation screen is very likely due to poor line contact. It is necessary to check whether the line has virtual connection in time. If there is, it will naturally lead to a black screen. At this time, as long as the virtual connection part is well connected.
Of course, it may also be that the power signal line is aging. You can try to replace it with a new one. If the black screen is solved, it means that there is a problem with the power signal line.
Illustration of navigation black screen maintenance course
In general, car owners can check according to the following ideas. If the specific reasons are not found out, they should not act rashly and give it to professionals for more insurance.
1. Check the power
If the battery is dead, the navigator will not work, so the screen will be black. Check method: long press the power button, if the screen lights up for a while, it goes out immediately, indicating that the battery has no power, it should be charged in time.
Some car owners' navigator software is pirated, so it is easy to have problems in compatibility, such as flashback, stuck, and even black screen. There's nothing wrong with saving costs or trying to experience other things. At this time, car owners just need to brush back the genuine software.
3. Poor contact
Check whether the port plug of the navigator is loose or not. Sometimes, because of the vibration of the vehicle, the plug itself is not tightly inserted. Over time, the plug will become loose.
4. Software upgrade
For example, the navigator system is Android. After some software is updated, the original system can't recognize the new version of the software, which never leads to the phenomenon of function mismatch. At this time, either upgrade the system or reduce the version of the software.
5. Restore factory settings
The general navigator has reset button, the purpose is to avoid the occurrence of crash and other phenomena. Some of the buttons are not long enough with function buttons, while others are small holes, which need to be poked with toothpicks and other slender objects. Some black screen or crash phenomenon can be solved by this method.
6. Circuit board and display damaged
If the circuit board is burnt out, it may be accompanied by the generation of peculiar smell, and the display may be damaged and the color may change. However, the two may not show the corresponding symptoms. In this case, it is unrealistic to ask the car owners to check. They should go to a professional repair shop and ask the car repairman to check.