> For the complete documentation index, see [llms.txt](https://www.sunscan.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.sunscan.net/build/2.-installing-sunscan-os.md).

# 2. Installing Sunscan OS

Your Raspberry Pi needs an operating system to work. This is it. **Sunscan OS** is our official supported operating system.

## 1 - Installing Raspberry Pi Imager

{% embed url="<https://www.raspberrypi.com/software/>" %}

<figure><img src="/files/cTUzSndJTYS8uj1xI42C" alt=""><figcaption></figcaption></figure>

## 2 - Download SunScan OS

{% embed url="<https://drive.google.com/file/d/1ktJRJT5SZf5DjDA105eazF1z6UuYk5wX/view?usp=sharing>" %}

## 3 - Installation on MicroSD (reco 128 Gb)

* Insert the micro SD card into a reader connected to your computer&#x20;
* Launch RPI Imager Click on “Choose Device” and select Raspberry Pi 4 B+&#x20;
* Click on “Choose OS” and select “Use Custom”&#x20;
* Choose the image “sunscan-os-xxx.img.xz” downloaded previously&#x20;
* Click on “Choose storage” and select your SD card (size of about 128 Gb)

{% hint style="danger" %}
Double check this step, and choose the correct device to avoid emptying another storage device!
{% endhint %}

* Click on “Next” Then click on “No” for customization&#x20;
* Then click on “Yes” to start the installation.&#x20;
* And now, wait… it’s long, up to several hours including the verification phase!

## 4 - Installing the "Sunscan" mobile app

<table data-view="cards"><thead><tr><th></th></tr></thead><tbody><tr><td><img src="/files/dlNpglY0044G969Q7wIx" alt="" data-size="original"></td></tr><tr><td><img src="/files/5snoSdqWW69qTSs4DGSs" alt="" data-size="original"></td></tr></tbody></table>

## 5 - Login to Sunscan

Turn on sunscan: short press on power button (click).&#x20;

Wait a minute, then the wifi network “sunscan-\*\*\*” should appear on your mobile.&#x20;

Connect to this wifi network with the password “SunScanByStaros”&#x20;

Then launch the SUNSCAN application 🙂