If your device is not connected to a Bluetooth device, try pairing the connected device with the unit once more.When music files on your computer are playing back, check that the audio output settings of your computer, such as Bluetooth® settings, etc., are set correctly.If the connected device has functions or modes, set them to the appropriate ones.Check if the connected device is playing back a music file.Check that both the connected device and the speaker are turned on and the volume is turned up.To troubleshoot the issue, check the following. Manuals are posted on your model support page. IMPORTANT: If model-specific information is needed to complete these steps, refer to the instructions supplied with the product.