Why does screen show "No Signal"?

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

No light means there is no power supply.

Red:Connection failed. The cable is loose,make sure the cable is securely connected.Incorrect connection, details as follows.

The screen was connected using the USB-C port of the laptop show "No Signal"?

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.

The screen was connected using the USB-A and HDMI port of the laptop show "No Signal"?

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.

Incompatible laptop models?

For Mac OS system,Mac with M1/M2/M3 chip,you will need to buy our dedicated H4 8in1 Hub to install the built-in driver to activate both screen extender.

If the issue persists and the monitor still shows no signal after ruling out the above problems, it might be due to a cable issue or another product-related problem. Please fill out the following after-sales form to let us know, and our after-sales department will assist you as soon as possible.