Why is the Xiaomi Robot Vacuum S40 offline?

If the Xiaomi Robot Vacuum S40 is offline, please refer to the following steps:
1. Check whether your home Wi-Fi is working properly. Please make sure that the robot vacuum is in a good Wi-Fi signal coverage area;
2. If the Wi-Fi connection is abnormal. You can add or reset the network for the robot vacuum, and select a router close to it to configure the network;
3. Make sure the robot vacuum is powered on. After it is turned off, it is in offline mode.
If the above steps cannot resolve the issue, please contact the local after-sales service center for further assistance.