**This guide needs *your* help to seed [these](https://3ds.guide/rss.xml) torrents!**
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**Read all of the introductory pages before proceeding.**
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## What is Homebrew?
[**Homebrew**](https://en.wikipedia.org/wiki/List_of_homebrew_video_games) usually refers to software that is not authorized by Nintendo. It allows you to run homebrew games, tools like save editing and backup, and emulators for various older systems.
In most cases, running homebrew on your device is 100% free using [just the Nintendo 3DS Sound app](homebrew-launcher-(soundhax)) (if you are on >=11.3.0, you will be unable to proceed past homebrew). There are also various other exploits in commercial games and the browser to get homebrew running.
**Custom Firmware** ("CFW") permite que uses hacks mais avançados do que homebrew que corre em userland. For instance, signature patches let you install unsigned titles that appear right on your HOME Menu.
O objetivo deste guia é pegar numa consola completamente livre de modificações
e instalar Custom Firmware com o recurso ao arm9loaderhax. Nalgumas versões, é necessário começar por processos Homebrew, mas o objetivo é sempre obter Custom Firmware.
Arm9loaderhax is the newest and best method of launching Custom Firmware that gives us nearly full control of the system only milliseconds into boot, which is similar to the effect of BootMii for the Wii.
Os benefícios de usar arm9loaderhax em relação a outras maneiras de arrancar Custom Firmware são vários, e por isso é recomendado utilizar este guia em vez de qualquer outro baseado em software antiquado (tais como menuhax ou rxTools).
+ Safely update to the latest system version without fear of losing access to homebrew
## What do I need to know before starting?
+ **Before beginning the guide, you must know the risks of 3DS hacking: EVERY time you modify your system, there is always the potential for an UNRECOVERABLE brick. They're rare, but still a possibility so make sure you follow ALL directions EXACTLY.**
+ If you have already hacked your 3DS before to get an EmuNAND setup, and would like to move the contents of your previous EmuNAND to your new SysNAND CFW, you should follow all instructions and restore your existing EmuNAND when prompted once you reach [Installing arm9loaderhax](installing-arm9loaderhax).
+ If everything goes according to plan, you will lose no data and end up with everything that you started with (games, NNID, saves, etc will be preserved).
+ Se precisares de formatar um cartão SD novo, podes usar o [`guiformat`](http://www.ridgecrop.demon.co.uk/index.htm?guiformat.htm) e definir o Tamanho da Unidade de Atribuição para 32K.