The XBOARD QS was released recently and is currently not listed on the default keyboard list on VIA, so you need to add the keyboard manually.
First, download the keyboard file (Json file) from this link: DOWNLOAD
In VIA, in the settings tab, select "Show Design tab"
In the design tab, click on the upload button, and select the keyboard file (Json file) that you downloaded in the first step.
You can also change settings directly on the keyboard using buttons and shortcuts, make sure to follow the instructions on the user manual (Click here to download) or on this tutorial video:
Important:
⚠️Among VIA, remap, vial or sRGB, only one can be connected at a time.
⚠️Please close any unused programs.
⚠️Check the correct firmware is applied and that it matches one of the types available.