1. Check the cable being used for conneting the USB device.
2. Check the port where the USB device is connected.
3. Ensure the USB device is compatible with your laptop model.
4. Check the available USB drivers on the device.
5. Reboot the laptop and check if the device is recognized.
6. Try connecting the device to another laptop and see if it works.
7. If nothing works, consult the manufacturer’s website for help.