Here's the ReaSnow S1 user manual.http://www.reasnow.com/download/ReaSnowApp/ReaSnow%20S1-UserManual.pdfFor SWITCH, there are two important points to note1. Disable Auto Sleep2. then enable Pro Controller Wired CommunicationDid you do that?
1. Fully restart the console, and try again later.2. See this video: https://youtu.be/pfXLvk8ggzw The way of getting configs for Switch on the ReaSnow APP are same.