I think we've all been hit with updates that don't quite work and it is a large pain. Cardo doesn't let you roll back. That's the reason I chose sena so I can install whatever version I want. But to your problem if Cardo support can't provide a fix is there a method to perform a factory reset and fresh install that may put things back to normal? You'll obviously need to fully reconfigure it but sounds like you're having to do most of that each time already. Good luck I hope you can get it working again otherwise Cardio might need a release with a fix update you can install.
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