What Is 3DS Hacks Guide?
3DS Hacks Guide is a community-maintained website that provides a complete, step-by-step walkthrough for installing custom firmware (CFW) on Nintendo 3DS and 2DS consoles, taking a stock system to boot9strap and Luma3DS. It is the reference guide most commonly cited in the 3DS homebrew community, and it is not affiliated with Nintendo. Use it if you want a structured, verified path through the modding process rather than piecing together forum posts.
What the site actually covers
The guide is organized around the full lifecycle of a modded console, not just the initial install:
- Installation — from an unmodified retail 3DS/2DS to boot9strap and Luma3DS custom firmware
- FAQ and Key Information — background reading the guide asks you to complete before starting
- Troubleshooting — what to do when a step fails
- Checking for CFW — determining whether a console is already modified
- Extras — GodMode9 usage, dumping titles and game cartridges, region changing, and uninstalling CFW
It also installs supporting homebrew along the way, such as a package installer, a save file manager, and a homebrew app store, and it walks you through making critical system file backups.
What custom firmware gives you
The guide defines CFW as a full software modification comparable to "administrator access" on a computer: it removes the limit of doing only what Nintendo permits and lets the console do anything it is physically capable of. The uses it lists include:
- Running homebrew software and games made for or ported to the 3DS
- Bypassing the region lock to play games from other regions
- HOME Menu customization with community themes and badges
- Game modification ("ROM hacks") through LayeredFS
- Save data editing, backup, and restore
- Emulation of older consoles, plus native DS and GBA playback
- Installing physical cartridges for digital use
Luma3DS, the CFW this guide installs, automatically removes the region lock and allows unsigned software to run.
The online services question
A common reason people hesitate is the shutdown of Nintendo Network online services. The guide addresses this directly:
| Affected by shutdown | Not affected |
|---|---|
| Nintendo Network online services such as game servers | Current 3DS modding methods |
| — | Internet access of homebrew apps (e.g. Universal-Updater) |
| — | Browser and general Internet access |
Alternate online servers such as Pretendo Network are described as a work-in-progress at the time of writing. In short, the shutdown does not block modding or homebrew connectivity.
How to use it well
The guide's own instruction is to read all introductory pages thoroughly before proceeding — including the first one — rather than jumping to the install steps. Two practical implications:
- Read the Key Information section first. It sets expectations for what the process involves and what can go wrong.
- Follow the sequence for your exact model and firmware. The guide branches by console version and system state, so the correct path depends on what you currently have.
If you only want to know whether a used console you bought is already modded, start with the "Checking for CFW" page instead of the installation flow.
Who it is for
This guide suits you if you have a retail 3DS or 2DS, are comfortable following detailed technical instructions, and want the community-standard method with backup and recovery steps built in. It is less useful if you are looking for a one-click tool, or if you want to avoid any risk to the console — the guide includes brick-avoidance backups precisely because the process touches critical system files.