Microsoft Miracast display adapter worked for me for a couple years. Suddenly I couldn’t pair from my Android device. The adapter is configured to use a PIN, and I had the correct PIN, but nothing would work. I had firmware V.2.0.8372 on the Microsoft Miracast adapter.
I found a real Windows 10 laptop, as typical virtual machine software such as VirtualBox doesn’t provide the necessary software links to allow Miracast to work from a Windows guest OS. I had to find a natively booting Windows 10 laptop. After a couple tries, I could connect.
- Disable PIN and restart adapter
- Enable PIN and restart adapter
Then the Miracast adapter again worked from my Android device as usual.
I did check for low supply voltage, I don’t believe that was a problem since I swapped monitors and power sources.
Update Miracast firmware
From a native Windows 10 laptop:
- Windows Store → Microsoft Wireless Display Adapter
- connect to your Miracast adapter.
- Select Firmware Update