This indicates that there is an issue with your computer's video output to the screen. Please first check if the cable is securely plugged in to avoid any looseness.

Please check the light behind the screen close to the port turn red or blue?

Blue: Connected correct

Red:Connection failed. Incorrect connection or Incompatible laptop models

It means that your laptop's interface is just a USB-C port and not a full-featured Type-C port, which results in the inability to output video. In this case, you will need to purchase accessory H5 video cable to help with the conversion and achieve the video output effect.

It appears that the connection port for your screen is incorrectly connected, for example, connecting the HDMI cable from your laptop to the screen's Type-C port, which results in no video output to the screen.Please pay attention to the instructions located at the connection port position on the screen.

1. Insufficient power supply. Please connect your laptop to a power source to ensure stable power supply;
2. Update the graphics card driver of the laptop. The old version of the graphics card driver causes unstable video signal transmission. Please visit the official website of your laptop brand for graphics card driver update download;
3. Please check the light at the screen interface. If it is red, the cable or interface is damaged, resulting in unstable signal transmission. You can replace the cable to test whether it is the interface or the cable itself that is faulty. Apply for warranty with us based on the fault problem.

It may be that your computer does not have enough power. Please charge the monitor using an external power source that provides 5V/2A power.