For more advanced troubleshooting, access the UEFI settings on your Surface Pro 9. Once in UEFI, go to Devices, disable the Docking USB port for at least 15 seconds, and then re-enable it. This can ...
Dirt or corrosion on the connector pins can prevent the Surface Pro 9 from charging. Unplug the power supply from the wall, clean the pins on the connector with a pencil eraser, and then use a cotton ...