How do you know whether the device working properly or not BFW10?

To determine if the BFW10 device is working properly, you should first check for any error messages or indicators on its display. Additionally, you can run a diagnostic test or use any built-in self-check features to assess its functionality. Observing the device's performance during operation and ensuring it meets expected output or behavior is also crucial. Lastly, consulting the user manual for troubleshooting steps can help identify any issues.