To make sure your Huion signature pad functions properly, follow these steps:
Download and Install this driver: For Windows users - 12.2.7 Version (2017.05.19) found at www.huion.com/download ; For Mac users - 11.1.8 Version (2017.05.23)
Click on the Huion Driver Icon on your desktop and make sure your settings look like this: https://simon.d.pr/VnYwez
Plug your signature pad in a USB port