After completing the last step, you can now easily remove the motherboard.

Plug in your soldering iron and set it to approximately 350°F.

Flip the motherboard over and carefully desolder the small holes using the tip of your heated soldering iron. This will melt the solder, allowing you to remove the USB-C port.

Position the new USB 3.1 Type-C 16-pin female connector in place, then reheat the solder to secure it to the motherboard.