# Qubino Flush Shutter (ZMNHCD4) calibration

**URL:** <https://community.homey.app/t/qubino-flush-shutter-zmnhcd4-calibration/36134>\
**Category:** Questions & Help\
**Tags:** z-wave, official, devices\
**Created:** [October 18, 2020, 1:15pm UTC](https://community.homey.app/t/qubino-flush-shutter-zmnhcd4-calibration/36134 "2020-10-18T13:15:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Nikita\_Nikitin](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/nikita_nikitin/32/16947_2.png) [@Nikita\_Nikitin](https://community.homey.app/u/Nikita_Nikitin)\
**Post date:** [October 18, 2020, 1:15pm UTC](https://community.homey.app/t/qubino-flush-shutter-zmnhcd4-calibration/36134/1 "2020-10-18T13:15:49Z")

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Could anyone explain me how does the Calibration work in Maintenance app tab please? How does the shutter understand where is the end position of the blinds and where is the top position of the blinds? My shutter doesn’t tell Dooya motor to stop, blinds got messy.