1. Technical problem: When playing a video, there may be technical problems that cause the video to fail to play normally, resulting in a black screen.
2. Network problem: If the video needs play online, network instability or interruption may cause the video not to play normally, resulting in a black screen phenomenon.
3. Equipment problems: If the equipment itself fails, such as damaged graphics card and insufficient memory, it may also lead to the phenomenon of black screen.
4. Software problems: If the video playback software fails or the version is too low, it may also lead to the phenomenon of black screen.
In order to solve this problem, you can try the following measures:
1. Check whether the device works normally, such as restarting the device or checking the device settings.
2. Check whether the network connection is normal, such as trying to reconnect the network or checking the network settings.
3. Update or reinstall the video playback software, or try to use other playback software.
If the problem persists, please contact technical support for more help.
In short, there are many reasons for the black screen problem, which need to be analyzed and solved according to the specific situation.