Hello friend,
Thanks for your patience.
Could you pls do a favor that check if these does not forget to do when test the item?
When install it,you must turn off anti-virus software on your computer, not anti-virus operations.
secondly, prior to installation, do not you start the car.
Third, 327 pairs of Bluetooth software requirements to 2.0 software to connect , you can start the car when connection is successful,then you can see all kinds of information.
Forth,turn on your computer. Start the Bluetooth.. Now you can connect,and do other steps.
If you do all these,and same result,please email us back,we will fix it asap.
Regards