The USB device is not recognized. • Try the following: 1 Turn the system off. 2 Remove and reconnect the USB device. 3 Turn the system on. •Make sure that the USB device is securely connected to the (USB) port. • Check if the USB device or a cable is damaged. • Check if the USB device is on. • If the USB device is connected via a USB hub, disconnect it and connect the USB device directly to the unit.