What is the black screen on the car navigation display?

You can carefully check the connection of the navigator port to see if the line port is loose and falls off due to the vibration of the vehicle during driving. If there is, it can be used normally by plugging it tightly.

In another case, check whether the software of the navigator is genuine or pirated. If it is pirated software, there may be compatibility problems, and it is necessary to reinstall genuine software to solve the problem.

Sometimes there will be some problems after the navigator is upgraded, mainly because the original machine does not support the new version of software. This situation needs to contact the manufacturer and replace the navigator body to solve it.