Issue: No network adapters found. Can only connect to internet using wireless USB dongle.

Device: Surface Laptop (1st generation)
Windows version: 20H2 (OS Build 19042.867)

My system info:
Dropbox - System info.txt - Simplify your life

Good evening, hope everyone is healthy and well, and coping okay in these uncertain times.

I recently bought a first generation Surface Laptop (second hand) with a "WiFi issue". Thinking that this would be an easy fix, I bought it.
The only way to connect to the internet is via a USB WiFi dongle - which wouldn't have been a problem if the device had more than one USB port.

Here is a screengrab of my Device Manager:
No network adapters available - Surface Laptop (1st Generation)-device-manager.jpg

Flight mode is also greyed-out:
No network adapters available - Surface Laptop (1st Generation)-greyed.jpg

List of network connections is empty when the wireless dongle is removed:
No network adapters available - Surface Laptop (1st Generation)-network.jpg

My system is up to date and sadly the device is out of warranty. I've been in touch with Microsoft Support - aside from being quoted over four hundred pounds to replace the device, they haven't been able to help me apart from helping me factory reset the device (five times!)

Can anyone help? If I've left out any technical details, please let me know and I'll gladly oblige.


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Windows 10 S Surface Laptop (1st Gen) - No wifi adapter after update

I also followed the steps in the above thread, but unfortunately this didn't resolve my issue.