Have you ever been able to pair up both devices ?
Assuming there's no compatibility issues then perhaps try deleting any cache tyle files in your bluetooth application on the phone and try again.
Bose may also be able to help.
They helped me when I was having some issues with a set of Bose Bluetooth Headphones.
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
