Hello,
Are you using Bluetooth Le? Or are you testing just the board drivers?
You can check the available examples for each in the SKD, there is one for a keyboard that might help you as a guide and one for an HID device working with Bluetooth LE.
If you are just getting started with the QN9080, I would recommend you to check first the driver example and after that check the Bluetooth one.
The examples can be downloaded from the MCUXpresso dashboard .
Regards,
Estephania