How do I connect my new REST to the Umay app?

Unregister your old REST:

1. Go into the Umay app's "profile" section (Icon on the bottom right).
2. Find "Unregister REST".
3. Follow the instructions on the screen. 
4. When you get to the "Connect to REST" screen, connect the new REST. 

After unregistering your old REST, you will be able to connect & register your new REST.