I use the Resound hearing aids which pair with my iPhone. Enter bluetooth speaker (Amazon Echo for the moment) and I have issues. The iPhone pairs fine with the Echo and VO get routed to it. I change the Audio destination to the Default and it gets routed to the iPhone's speakers and not my hearing aids. To my chagrin, I cannot route it back to the Echo. It looks like the 'Audio destination' rotor item is still faulty or I am missing something in settings somewhere.
Please help me figure out what I am doing wrong. I have the 6s with iOS 10.3.2