> For the complete documentation index, see [llms.txt](https://docs.bituo-technik.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bituo-technik.com/troubleshooting/electrical-2/failed-to-add-the-device-error-in-smart-life-app.md).

# "Failed to Add the Device" Error in Smart Life App

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**Applies to:** All Tuya Connectivity Products | **Scenario:** Connectivity Issue | **Updated:** 2026-04-25
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### 🔴 Symptom

When pairing SPM, SDM, or SRS series devices, the Smart Life app times out and displays a red **"Failed to add the device"** error message.

<figure><img src="https://68488808-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FTmsWivaZjkubbVKrCezC%2Fuploads%2F9KhYxoG4OeAKAXVeWEyQ%2Fimage.png?alt=media&amp;token=1415680a-5fe8-4b10-b951-b0c03470b05e" alt=""><figcaption></figcaption></figure>

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### 🟢 How to Fix

*Every Tuya-enabled device from Bituo undergoes strict factory testing before shipment. If you encounter this error, it is typically related to app compatibility or a product version mismatch. Please check the following two common causes:*

**1. Update the Smart Life App** Older versions of the app might not recognize our newest device firmware.

* **Action:** Go to the App Store (iOS) or Google Play (Android), update **Smart Life** to the latest version, and try pairing again.

**2. Verify Your Device Version** Bituo offers different connectivity versions for the SPM/SDM/SRS series. The Smart Life app **only** works with devices equipped with Tuya Wi-Fi or Tuya Zigbee modules.

* **Action:** Check the label on your device or your original order details. Ensure you have the **Tuya Wi-Fi** or **Tuya Zigbee** version. *(For example, versions like Standard Zigbee 3.0 or Open Wi-Fi are not compatible and cannot be added to the Smart Life app.)*

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### 💬 Still Need Help?

If the issue persists after completing the steps above, please contact our support team at [**support@bituo-technik.com**](mailto:support@bituo-technik.com) with your device's serial number (SN) or order details. We are here to help!