For support in English, ask for help at Nintendo Homebrew on Discord.
If you appreciate this guide, we accept Donations.
Thoroughly read all of the introductory pages (including this one!) before proceeding.
What is custom firmware?
Custom firmware (“CFW”) is a full software modification to your 3DS, comparable to “administrator access” on a computer. It allows you to do anything that the 3DS is physically capable of doing, rather than being limited by whatever Nintendo allows you to do.
Popular uses for custom firmware include:
- Running homebrew software and games made for or ported to the Nintendo 3DS
- Bypassing the region lock, allowing you to play games from other regions
- HOME Menu customization, using community-created themes and badges
- Modification of games (“ROM hacks”) through LayeredFS
- Save data editing, backup, and restore
- Emulation of older consoles, as well as native playback of DS and GBA games
- Installing your physical cartridges for digital use
What does this guide install?
This guide will:
- Install boot9strap and Luma3DS custom firmware on unmodified retail 3DS/2DS devices
- Luma3DS will automatically remove the region lock and allow you to run unsigned software
- Install various pieces of homebrew software, such as a package installer, save file manager, and a homebrew app store
- Make critical system file backups that can help avoid bricks (and recover data in the event of one)