> For the complete documentation index, see [llms.txt](https://docs.arkelectron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arkelectron.com/products/embedded-computers/ark-just-a-jetson/flashing-guide.md).

# Flashing Guide

If you purchased a bundle the [Jetpack Ubuntu OS](https://developer.nvidia.com/embedded/jetpack) is already installed. Follow this guide if you want to update to the latest Jetpack or need to flash your Jetson for the first time.

## ARK Jetson Kernel GitHub Repository

This repository contains helper scripts to download and build the kernel. Please follow the README.\
<https://github.com/ARK-Electronics/ark_jetson_kernel>

## Device Tree

The ARK Just A Jetson requires a custom device tree to enable all hardware features. The device tree files are located here:\
<https://github.com/ARK-Electronics/ark_jetson_kernel/tree/main/device_tree/ark_jaj>

## Overview

To flash the kernel you will need to connect the Jetson to your Host PC using the **USB C** connection. You must boot the jetson while holding the **Force Recovery** button.


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