# Sonoff snzb-02dr2

**URL:** <https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230>\
**Category:** eWeLink CUBE\
**Created:** [September 22, 2026, 7:50am UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230 "2026-09-22T07:50:03Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bajanich.e](https://avatars.discourse-cdn.com/v4/letter/b/71c47a/32.png) [@bajanich.e](https://forum.ewelink.cc/u/bajanich.e)\
**Post date:** [September 22, 2026, 7:50am UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230/1 "2026-09-22T07:50:03Z")

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Hello,

I am reporting a regression issue with the “External Sensor” feature after updating the **SONOFF SNZB-02DR2** firmware:

1. **Issue Summary:** My **SONOFF SNZB-02DR2** was successfully updated to firmware version **1.0.5**. Immediately following the update, the external temperature readings that were previously displayed on the SNZB-02DR2 screen vanished.

2. **Troubleshooting Performed:** I performed a full factory reset on the SNZB-02DR2 and re-paired it with **SONOFF iHost**. The pairing completed successfully.

3. **Binding Process Failure:**

The Zigbee signal strength is excellent, and standard telemetry syncs normally. The failure occurs exclusively during the button-press confirmation step when binding an external sensor. This feature worked perfectly on the previous firmware version.

Please forward this issue to the SNZB-02DR2 firmware development team so they can investigate and release a fix.

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**Author:** ![Miao](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/miao/32/11137_2.png) [@Miao](https://forum.ewelink.cc/u/Miao)\
**Post date:** [September 22, 2026, 12:26pm UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230/2 "2026-09-22T12:26:00Z")

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Hello,  
Thank you for your feedback. We apologize for any inconvenience this may have caused. We have identified the issue and will fix it as soon as possible. We will keep you updated as soon as there is any progress. We appreciate your understanding and support.

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**Author:** ![bajanich.e](https://avatars.discourse-cdn.com/v4/letter/b/71c47a/32.png) [@bajanich.e](https://forum.ewelink.cc/u/bajanich.e)\
**Post date:** [September 22, 2026, 2:02pm UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230/3 "2026-09-22T14:02:12Z")

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> [@Miao](#):
>
> Hello,  
> Thank you for your feedback. We apologize for any inconvenience this may have caused. We have identified the issue and will fix it as soon as possible. We will keep you updated as soon as there is any progress. We appreciate your understanding and support.

Thanks! I’m looking forward to a prompt resolution of the issue.

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**Author:** ![Miao](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.ewelink.cc/miao/32/11137_2.png) [@Miao](https://forum.ewelink.cc/u/Miao)\
**Post date:** [September 24, 2026, 8:30am UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230/4 "2026-09-24T08:30:15Z")

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Hello @bajanich.e ,  
We have released the **2.14.1 hotfix** to resolve this issue. You can now update to 2.14.1.  
**Note:** Since the 1.0.5 firmware for the SNZB‑02DR2 supports configuring a remote temperature and humidity source, if the remote sensor you select supports both temperature and humidity detection, the SNZB‑02DR2 will display both remote temperature and humidity.  
We appreciate your understanding and support.

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**Author:** ![bajanich.e](https://avatars.discourse-cdn.com/v4/letter/b/71c47a/32.png) [@bajanich.e](https://forum.ewelink.cc/u/bajanich.e)\
**Post date:** [September 25, 2026, 7:02am UTC](https://forum.ewelink.cc/t/sonoff-snzb-02dr2/209230/5 "2026-09-25T07:02:54Z")

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Thank you very much! I’ve upgraded. Everything is working now! Thank you for promptly fixing the problem!