mustapi
which version of batocera?
and what kind of bluetooth dongle is it? can you provide the hardware-id?
The hardware id for a device in Windows can be found in the Windows Device Manager. To check the hardware id for a device, follow these steps:
Open the Device Manager from the Control Panel. You can also type "devmgmt.msc" at the Run option in the Start menu.
In the Device Manager, right-click the device, and select Properties in the popup menu.
Select the Details tab.
Select the Hardware Ids in the dropdown list.
the hardware id of my bluetooth dongle for example is:
USB\VID_0A12&PID_0001&REV_8891