What to do if the indoor chime does not ring when pressing the Xiaomi Smart Doorbell 3S?

For this issue, you can refer to the following troubleshooting methods:
1. Check whether the Xiaomi Smart Doorbell 3S and the indoor chime are powered on normally and paired successfully. If so, please put the chime close to the doorbell and try again;
2. The doorbell and the chime are connected by RF 433MHz, and the transmission distance is affected by the obstacles between them. If the doorbell and the chime are far apart, the connection between them will be disconnected and will affect normal use.