These steps should help you get internet access but does use your phones data.
A lot of Samsung Galaxy S9 or Galaxy S9 Plus users are being hooked up to the mobile hotspot feature of their smartphone. The feature provides convenience and an aid for those users who aren’t able to connect to the WiFi connection on their area or a weak mobile data signal. This is great for […]
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The only difference is that since your motherboard isn't wifi you'll need to connect it physically to the PC via cable (your charging one).
Found a video to help with the tethering (with cable).
View: https://www.youtube.com/watch?v=sCNa1EEomZA