# System Updates

## 1. Understanding iSG Software

The iSG composes with 3 parts of software:

<table><thead><tr><th width="110">Software</th><th width="468">Purpose</th><th>Updates</th></tr></thead><tbody><tr><td><strong>iSG</strong></td><td>The primary software and user interface running on iSG.</td><td><a href="system-updates/local-update/isg-downloads">Download</a></td></tr><tr><td><strong>Container</strong></td><td>The runtime environment that supports other services including Home Assistant.</td><td><a href="system-updates/local-update/container-downloads">Download</a></td></tr><tr><td><strong>Image</strong></td><td>The service pack contains Home Assistant, device drivers, add-ons and all services.</td><td><a href="system-updates/local-update/image-downloads">Download</a></td></tr></tbody></table>

## 2. How to Update iSG Software

The software can be updated using one of the following methods:

### 2.1. Online Update

If a new software version is available, an icon !\[形状

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For more details, please check the section [System Updates > Online Software Update](https://kb.linknlink.com/isg/settings/system-updates/online-update).

### 2.2. Local Update

To update manually, navigate to System Updates > Local Updates. Download the software from the provided links, copy the files to a USB drive or SD card, then open the System Update page and click Install to apply the updates.

For more details, please check the section [System Updates > Local Software Update](https://kb.linknlink.com/isg/settings/system-updates/local-update).
