Dahua monitors the appearance and pattern of the camera on the big screen and black screen.

Dahua, recovery method of black screen of hard disk video recorder, two solutions to the black screen caused by high resolution of hard disk video recorder. The first is software settings, just restore the factory settings of the equipment. The second is to use a computer, enter the configuration interface of hard disk video recorder, and click to adjust the resolution to the lowest. After the resolution is adjusted to the lowest, the system will restart.