> For the complete documentation index, see [llms.txt](https://docs.bossithq.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bossithq.com/sunmi-update-instructions.md).

# Sunmi Update Instructions

{% stepper %}
{% step %}

### Get the device serial number

Before a software update can be pushed, the SUNMI device serial number (SN) must be provided to us.

To find the serial number on the device:

* Go to Settings
* Select About Device
* Locate and send the Serial Number (SN)
  {% endstep %}

{% step %}

### Request the software update

Once we have the serial number, we will submit an update request directly to SUNMI for that specific device.

{% hint style="info" %}
The update must first be approved and pushed by SUNMI — it will not appear on the device until SUNMI has released it to that serial number.
{% endhint %}
{% endstep %}

{% step %}

### Confirm the update is available

Once SUNMI confirms the update has been pushed, we will let you know and advise you to proceed with the installation.
{% endstep %}

{% step %}

### Install the update on the device

To install the update:

* Open the **Software Update** / **System Update** app on the SUNMI device
* Increase the download speed to Maximum
* Check for updates
* Start the download and installation process
* Follow any prompts to reboot the device once complete

{% hint style="info" %}
SUNMI documentation also references using the System Update app to manually download and install OTA updates once the device has been added to the upgrade group.
{% endhint %}
{% endstep %}

{% step %}

### Confirm completion

Once the update has completed successfully and the device has restarted, please confirm back to us so we can verify the device is fully updated.
{% endstep %}
{% endstepper %}


---

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