How to connect the Xiaomi Smart Doorbell 3S to the Mi Home/Xiaomi Home APP?

For your reference, you can connect the Xiaomi Smart Doorbell 3S to the Mi Home/Xiaomi Home APP as follows:
1. Open the [Mi Home/Xiaomi Home] APP >> select [Device] >> tap [+] at the upper right corner >> tap [Scan] and scan the QR code on the back of the doorbell;
2. Press and hold the reset button on the back of the doorbell. When the doorbell is reset successfully and continuously broadcasts a beep sound, the doorbell enters the mode to be bound;
3. Follow the Mi Home/Xiaomi Home APP prompts, after the doorbell enters the pairing mode, tap [Device reset] >> the APP jumps to the page for scanning nearby devices >> select the Wi-Fi >> enter the Wi-Fi password >> tap [Next] >> wait for the device to connect and pair;
4. After the pairing is completed, select the device location and name the device. Then the device is added successfully.