If your computer does not support Miracast, you can try the following methods:
1. Use wired connection: If your computer does not support Miracast wireless connection, you can try using a wired connection, such as using an HDMI or VGA interface to connect to a TV or projector.
2. Install Miracast Receiver: You can also purchase a dedicated Miracast receiver, connect the receiver to a TV or projector, and then connect the content to the receiver through your phone or tablet to project the screen of your phone or tablet onto the TV or projector.
3. Use other screen mirroring protocols: If your computer does not support Miracast wireless connection, you can try using other screen mirroring protocols, such as DLNA or AirPlay. At this time, you need to switch the wireless connection from Miracast to DLNA or AirPlay.
However, it should be noted that these screen projection protocols require different supported devices and software versions, and specific matching adjustments need to be made. It should be noted that different operating systems and hardware platforms have varying levels of support for Miracast.
If the computer was able to project screens before, but suddenly cannot support Miracast, you can try the following solutions:
1. Updating the graphics card driver Miracast requires support from the graphics card. If your graphics card driver expires or is damaged, it may cause Miracast to malfunction. You can try updating the graphics card driver to the latest version to ensure that Miracast is supported.
2. Check the network connection. Miracast projection requires good LAN connection between devices to ensure that all devices are connected to the same Wi Fi network. If the network connection is unstable, it can also affect the effectiveness of Miracast usage.
3. Confirm whether the device supports Miracast. Some old computers and TVs do not support Miracast, so it is necessary to confirm whether the device supports Miracast. You can search in the system information to confirm whether Miracast is supported, otherwise you need to consider using other screen casting methods.
4. After restarting devices such as computers or televisions, Miracast’s normal working state may be restored.
5. Check the Miracast connection. After connecting the computer and TV, find the name of the device you just connected in “Settings”, “Devices”, and “Connections” on the computer, and click on it to confirm if the device is connected to Miracast.