> For the complete documentation index, see [llms.txt](https://help.aranet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.aranet.com/aranet4/aranet4-home/documents-and-firmware/how-to-update-firmware.md).

# How to Update Firmware

Starting from Aranet Home app version v2.0 firmware update can be done as follows:

1. Click on the settings “wheel” icon in the record of the necessary device;
2. In the newly opened page click on section **Firmware**;
3. Finally click on the button  **START UPDATE**:

<div data-with-frame="true"><img src="https://forum.aranet.com/site/assets/files/1537/firmware_upgradev2.1240x0-is.png" alt=""></div>

**Important!** Sometimes there might be an issue where the sensor is stuck during some operation, for example, a firmware upgrade. In this case, it is advised to open the Aranet4 app and try to add a new sensor. In most cases, this sensor will be discovered, paired back to the app and working again. If the issue still persists, please contact <support@aranet.com>


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