If the menu button is unresponsive, try these steps:

1. Remove and re-insert the external battery:
   • Take out the battery, wait a few seconds, and re-insert it securely.
2. Restart the binoculars:
   • Turn the device off and back on.
3. Press the menu button again:
   • Check if the menu button responds after restarting.

If the issue persists, reach out to our support team at [email protected].