# DUALR3 auto calibration missing on one device

**URL:** <https://forum.ewelink.cc/t/dualr3-auto-calibration-missing-on-one-device/207564>\
**Category:** eWeLink App\
**Created:** [February 6, 2026, 4:13pm UTC](https://forum.ewelink.cc/t/dualr3-auto-calibration-missing-on-one-device/207564 "2026-02-06T16:13:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![vmate](https://avatars.discourse-cdn.com/v4/letter/v/ba9def/32.png) [@vmate](https://forum.ewelink.cc/u/vmate)\
**Post date:** [February 6, 2026, 4:13pm UTC](https://forum.ewelink.cc/t/dualr3-auto-calibration-missing-on-one-device/207564/1 "2026-02-06T16:13:34Z")

</div>

Hi,

I have two DUALR3 devices controlling blinds. They are the same model, on the same firmware, and configured identically (motor mode, dual momentary switch).

However:  
• One device shows Auto Calibration (“Calibrate Motor”).  
• The other only shows Manual calibration.

I’ve attached screenshots of both Motor Settings pages.

What determines whether Auto Calibration is available on a DUALR3? Is this related to pairing, wiring, load detection, or app-side device classification? Is there a way to re-enable it?

Thanks.

 ![IMG_1272](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/a/a09cdb0f8cc7b33f327f6a0f0dbefa6c97ea5462.png)

 ![IMG_1267](https://europe1.discourse-cdn.com/flex005/uploads/ewelinkforum/original/2X/2/2e07833d71c7cb491173ef7555b8fd22c694d0d0.png)