Windows defaulted to “Hands-Free” profile. Fix: Disable the Hands-Free service:
In , right-click your Bluetooth device and select Update driver .
If your Launch software cannot open the assigned COM port, another software program may be occupying it. Change the port number manually:
Click , select the folder where you extracted the downloaded driver files, and click Next .
If the dongle appears as an "Unknown Device" in Device Manager : Right-click the button and select Device Manager .
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If the official download link is down, you can use the generic driver from the chipset manufacturer. This works 90% of the time.
Download the driver package specifically designated for .