For Cellular Shades.
If you're experiencing issues when trying to connect your SmartWave shades to the app, here are the possible causes and troubleshooting steps:
Cause 1: Cellular Shades Power Switch Not On
Solution: If you have cellular shades, check if the power switch is turned on. The power switch is located at the top of the valance. Make sure it is in the "on" position before attempting to pair the shades.
Cause 2: Shades not in pairing mode
Cause 3: Missing thread border router in the app
Cause 4: Weak signal strength
Cause 5: System failure
Solution:Turn off the power switch and wait 10 minutes before turning it back on.

Cause 6: Data Conflict Caused by iOS System
Solution: If you are using an iPhone or iPad and connecting via the Apple Home app, a failed connection may result in erroneous Matter data. Go to your iPhone or iPad's Settings > General > Matter Accessories page and check if any SmartWave shades are leftover. If so, tap "Edit" in the top right corner of the Matter page, then select the red delete icon to remove them from all services.

Reconnect the App
Once you've identified and resolved the potential causes listed above, you can try reconnecting your SmartWave shades to the app.