I have check Windows "Device Manager" and no specific bluetooth problem.
If I plug in usb cable of this Jabra 510 Ms, it still receiving audio normal. But no sound if using bluetooth.
I have download and install the official MINIX 1803 in this forum. I using everything default of factory MINIX.
With the headset connected, if you click on your volume icon in the taskbar (by the clock), do you see the carat (^)? If so, what output sources can you choose from? I have attached some examples.