Likely causes
- Device is in a different pairing mode
- Bluetooth or location permission is blocked
- Device is paired to another account
- App region or data center mismatch
- Unsupported Wi-Fi band during commissioning
Quick checks
- Confirm the correct app and account region
- Enable Bluetooth and local network permissions
- Place the device near the phone
- Reset the device to pairing mode
- Check whether it is already paired to another account
Step-by-step fix
Remove any previous device entry
Reset the device according to the manufacturer manual
Open the matching app and choose Add Device
Select auto-discovery or the correct category
Complete Wi-Fi credentials and wait for the device to register
Rename the device and test control