Why do I receive an upgrade message for Campy Plus when trying to connect to Android Auto/CarPlay?
If you receive an 'upgrade to Campy Plus' message when trying to connect Campy to Android Auto or Apple CarPlay, you might be missing a step. When using Campy through Android Auto or Apple CarPlay for the first time, you will have to launch the Campy app on your phone first, then open it on Android Auto or CarPlay (here are further instructions on the exact steps: connecting to Android Auto/Apple CarPlay).
Please see the official Android documentation for further explanation below;
Users must first launch the Campy app on their smartphone. This ensures that the in-car Android Auto interface recognizes the user's Campy Plus subscription. Simply starting from the DHU without launching the app will not activate the DHU navigation.