No, that’s not correct, you maybe have forgotten to disable AutoUpdate?
You have to do that in the 3.1.0 version, in the 1.1.1 version, this option does not exist.
You should see this:

You have to do the installation via CLI again, I’m afraid.
You probably already found the source-code on Github: GitHub - ronaldderksen/com.greenwavesystems: Drivers for Greenwave Systems devices
Removing the App, removes all of it, all devices have to be added again.