Avoid manual driver downloads for the Jieli AC4100. Stick with:
Are you having trouble with the device , or are you trying to fix a connection issue ? Jieli Ac4100 Bluetooth Driver
Uncheck and click OK . Fix 2: Restart the Bluetooth Support Service Avoid manual driver downloads for the Jieli AC4100
In Jieli development, you don't write a "Bluetooth driver" from scratch; you interface with their pre-compiled Bluetooth library ( files). Your code acts as an application layer driver. Protocol Support : The AC4100 typically supports Bluetooth 2.1 + EDR. : Focus on bt_setup.c user_address.c Jieli Ac4100 Bluetooth Driver
Is the Jieli AC4100 built , or is it an external USB dongle ?