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# How to add B200/B210/B310/D110 (concise version)

# Device Addition Steps for B200/B210/B310/D110
1. Connect your mobile phone to your home router’s WiFi network (The device only supports **2.4G WiFi** and does not support 5G WiFi).
2. Activate the device: Press and hold the **sync button** for 2–5 seconds, then release it after hearing a voice prompt or seeing the blue light flash.
3. Open the APP, scan the QR code on the back of the device, and tap **"Next"**.
4. Select a device group and set a name for the device.
5. Connect to the home WiFi: Enter the home WiFi password (If the displayed WiFi name is incorrect, tap to switch to the correct one).
6. Tap **"Next"** while the device’s indicator light is flashing. The APP will automatically search for the device’s hotspot; tap to connect to complete the addition.
For more detailed operations, please refer to: [https://closeli-help.closeli.com/en/article/how-to-setup-b200b210b310d110-1oyglnt/](https://closeli-help.closeli.com/en/article/how-to-setup-b200b210b310d110-1oyglnt/)

If the device fails to be added, please refer to:[https://closeli-help.closeli.com/en/article/b200b210b310d110-network-configuration-troubleshooting-guide-avy02/](https://closeli-help.closeli.com/en/article/b200b210b310d110-network-configuration-troubleshooting-guide-avy02/)