> For the complete documentation index, see [llms.txt](https://navixy.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://navixy.com/docs/qna/device-related-questions/gsensor-calibration-failure-on-jc261.md).

# GSENSOR calibration Failure on JC261

The GCALIBRAT command is unsupported on JC261. Firmware v1.8.1.3+ performs automatic sensor calibration on power-on to reduce false events

## Question

Why does JC261 respond with "calibration failed" to `GCALIBRAT`?

## Answer

{% hint style="info" %}
Although the documentation includes a calibration option, this command is not supported by the JC261 camera.
{% endhint %}

Starting from firmware version `JM_C261_V1.8.1.3_250925.1127`, the device performs automatic sensor calibration each time it powers on, with the aim of reducing false positive events.


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