> For the complete documentation index, see [llms.txt](https://docs.ceruleansonar.com/c/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ceruleansonar.com/c/sonarview/device-specific-controls/omniscan-450/firmware-update.md).

# Firmware Update

If the Omniscan firmware version is not the latest version you will see another button at the bottom of the left side controls.

<figure><img src="/files/OA5RQMhR9a8GwqVZHPxh" alt=""><figcaption></figcaption></figure>

If you click that button will something like this indicating the current and new firmware versions.

<figure><img src="/files/wXjYQzExV8hB8PGyatHj" alt=""><figcaption></figcaption></figure>

Clicking the "Update Now" button will start the update. There are 3 steps which all occur automatically namely Preparation, Writing, and Rebooting.&#x20;

When update is complete the Omniscan device reboots itself and SonarView returns to the home screen where you can again connect to the Omniscan device with the new firmware running.


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