DMSS version 3.20.000 onward has a Video Mode setting located in Local Config that can improve viewing conditions on certain model smart phones. Set the Video Mode setting from High Performance to Compatibility to increase video stream load times. Compatibility video mode can also correct a black camera image or timeout issues when loading video streams on the DMSS.
DMSS also allows for both extra and main streams to be viewed live on mobile devices. It is highly recommended to use extra stream for live preview on mobile devices. If the camera or video recorder was added with extra stream selected for live preview and extra stream is not enabled on the device, then the image may appear black or blank. Make sure that extra stream is enabled on devices being viewed, or add those devices with main stream for live preview.
Watch the mobile app video on DH Vision's Youtube page