Try these steps:

1. Make sure your app is version 6.0.10 or above

2. Try binding using your phone's hotspot, then update to the latest firmware

3. During binding, keep the device 1-2m away from the HomeBase/router

4. If using HBmini: use a 5V/2A power adapter

5. If you have another phone available, try using that instead

6. Watch the binding tutorial video and follow the steps

If the issue persists:

Please contact support with:

• A video showing your binding process (both QR scanning and manual SN entry)

• The time when you tried

If you have any other questions, please don't hesitate to contact eufy Support Engineers for further assistance.