Get Started

Before starting this guide, we will see if custom firmware is already installed and check the current system version of your console.

Section I - CFW Check

1. Power off your console
2. Insert your SD card into your console
3. Hold the (Select) button
4. Power on your console while still holding the (Select) button
5. If you do not see a custom menu (your console just boots to the HOME Menu), you may proceed to the next section

WARNING

If you see the Luma3DS configuration screen or any other custom menu (e.g. GodMode9, Decrypt9WIP), STOP - you already have custom firmware! Continue from here.

WARNING

If, when the console boots to the HOME Menu, you see the error "Could not detect an SD card", ensure that your SD card is properly formatted: Windows, macOS, Linux

Section II - System Version Check

1. Launch System Settings on your console
2. Your system version will be displayed on the bottom right of the top screen (e.g. "Ver. 11.17.0-50U")

Section III - Select a Method

To find the correct method for your console, please select the model of your console and the system version you found in Section II.

Old 3DS/2DS	New 3DS/2DS

Ver.Sys.Emu.(Other) 11109876543210.17161514131211109876543210.0-50494847464544434241403938373635343332313029282726252423222120191817161514131211109876543210EUJKTC

System model is required.

This doesn't seem to be a valid system version.

Your console may already have custom firmware installed. Please retry Section I. If you still only reach the HOME menu, click the link below and ask, in English, for assistance.
Nintendo Homebrew on Discord

---

Alternate Methods

If possible, you should follow the method given by the prompt above.

Otherwise, methods that work on all versions are available, but require additional hardware:

1. ntrboot - requires compatible DS flashcart
2. Installing boot9strap (Hardmod) - requires soldering