3DS Hack Guide - Install Luma3DS CFW

This guide will show you have to hack your Nintendo 3DS and install the Luma3DS custom firmware using the Seedminer exploit, allowing you to run homebrew apps and backup games. With CFW, your 3DS will be able to do many things that would otherwise not be possible on a stock console such as;

Installing 3DS game and DLC backups (Region Free)
Playing original DS ROMs
Install Virtual Console titles (GBC, GBA, SNES etc)
Dump cartridges and play directly from your SD card
Import save files
Cheat codes

Luma3DS is compatible with the latest 3DS firmware (11.13.0) so you can safely update without aiming for a specific firmware version. This guide is fairly long, so you should read through it first to have an understanding of the requirements and set ample time aside to complete all the steps. Required Downloads:

Requirements

(New) Nintendo 3DS (XL) on Stock Firmware 11.13.0

This method is compatible on all stock Nintendo 3DS consoles on firmware 11.13.0
Old, New, 2D and XL devices are all supported

(Micro) SD Card (32GB or Larger)

An SD Card is required to store the exploit files and homebrew apps
32GB or more is recommended to store games
The SD card must be formatted to FAT32
MicroSD cards are compatible with Old 3DS consoles via a MicroSD to SD adapter

Internet Connection

You will need an internet connection to use the Seedminer method
Seedminer requires you to go online with your Mii and add a friend via Friend Code

Functioning DS Internet Settings Application

The Fredtool method requires the DS Internet Settings application
On your 3DS, go to [System Settings] -> [Internet Settings] -> [Nintendo DS Connections]
If you see the [Nintendo Wi-Fi Connection Setup] screen, your 3DS is compatible with the Fredtool method

Get ID0 and Friend Code

Insert your SD card and open the /Nintendo 3DS/ folder, copy the 32-character name of the folder inside to a notepad for reference – this is your ID0
Power on your 3DS and make sure you are online by connecting to Wi-Fi. (Create a Mii if you haven’t done so before)
Go to your Online Friend List -> [Mii Profile] -> [Friend Code] and make a note of your Friend Code for the next steps

Seedminer: Generating movable.sed

Go to the Seedminer website on your computer’s browser
Enter your Friend Code
Enter your 32-character ID0
Complete the captcha and click [Go]
Your movable.sed may become available at this point; if so, download it and continue to the next section
Register the Friend Code of the Bruteforce bot that appears on the Seedminer page
Click [Continue] when the website finishes processing
Download the movable.sed once the process is completed

BannerBomb3

Open the BannerBomb3 webtool in your browser
Selct [Choose File] and upload your movable.sed file
Click [Start!]
Download the tadmuffin_output.zip folder, this contains the F00D43D5.bin file
Power off your console and Insert our SD card into your PC
Unzip tadmuffin_out.zip and go to /output/ -> /Usa_Europe_Japan_Korea/
Go to /Nintendo 3DS/ -> /ID0/ -> /<32-character id>/ -> /Nintendo DSiWare/ on your SD card
Create the /Nintendo DSiWare/ folder if it doesn’t already exist.
Copy F00D43D5.bin from /Usa_Europe_Japan_Korea/ to the /Nintendo DSiWare/ folder on your SD Card
Insert your SD card into your 3DS
Power on and launch [System Settings]
Go to [Data Management] -> [DSiWare]
Select [SD Card]
If it worked, the 3DS will flash pink/purple then crash.
Power off your 3DS and insert the SD card into your PC
Copy the newly created 42383841.bin from the root of your SD card to your PC desktop
Go to /Nintendo 3DS/ -> /ID0/ -> /<32-character id>/ -> /Nintendo DSiWare/
Delete F00D43D5.bin

Prepare SD Card

Copy boot.firm from the Luma3DS .7z to the root of your SD card
Copy boot.nds from the b9sTool .zip to the root of your SD card
Copy boot.3dsx (Hombrew Menu) to the root of your SD card
Copy the /private/ folder from Frogminer_save.zip to the root of your SD card
Create a folder called cia on the root of your SD card
Create a folder called 3ds on the root of your SD card
Copy ctr-no-timeoffset.3dsx to the /3ds/ folder on your sd card
Copy FBI.3dsx to the /3ds/ folder on your SD card
Copy FBI.cia to the /cia/ folder on your SD card
Copy Homebrew_Launcher.cia to the /cia/ folder on your SD card
Copy DSP1.cia to the /cia/ folder on your SD card
Copy Checkpoint.cia to the /cia/ folder on your SD card
Copy lumaupdater.cia to the /cia/ folder on your SD card

Fedtool

Open Fredtool in your browser
Select your movable.sed file
Select your 42383841.bin
Complete the captcha and click [Start]
Download your fredtool_output.zip when the process is complete
Copy 42383841.bin from the output/hax/ folder in fredtool_output.zip to the /Nintendo 3DS/ -> /ID0/ -> /<32-character-id>/ -> /Nintendo DSiWare/ folder on your SD card
Reinsert your SD card into your 3DS
Power on the 3DS and go to [System Settings] -> [Data Management] -> [DSiWare]
In the SD Card section, select the [Haxxxxxxxxx!] title -> [Copy] -> [OK]
Return to [System Settings] -> [Internet Settings] -> [Nintendo DS Connections] -> [OK]

If the JPN version of Flipnote Studio opens, the exploit was successful.

Flipnote Studio Exploit

Follow this picture guide by zoogie on how to run the flipnote studio exploit
There is also a video example

Your 3DS should have now loaded up the b9sTool menu after successfully running the flipnote studio exploit.

b9sTool + Luma3DS Configuration

Select [Install boot9strap] using the D-Pad
Press [A], then press [START] + [SELECT] at the same time to begin the installation
Press [HOME] -> [OK] after the installation to exit b9sTool and your 3DS will reboot to the Luma3DS configuration
Reboot your 3DS while holding [SELECT] to launch the Luma3DS configuration on boot.
Turn on [Show NAND or user string in System Settings]
Press [START] to save your changes and reboot the 3DS

Restore DS Internet Settings

Power off your 3DS and insert the SD card into your PC
Copy 42383841.bin from /output/clean/ folder in the fredtool_output.zip to the Nintendo 3DS/ID0/<32-character-id>/Nintendo DSiWare folder on your SD card – overwrite the existing file
Insert your SD card into the 3DS and power it on
Launch [System Settings] -> [Data Managerment] -> [DSiWare]
Under the SD Card section, select the Nintendo DSi™ title
Select [Copy] then select [OK]

Install Homebrew Applications

Launch the Download Play app on your 3DS
In the Download Play menu, simultaneously Press [L] + [Down] + [SELECT] to open the Rosalina menu
Select [Miscellaneous options]
Select [Switch the hb. title to the current app.]
Press [B] to continue
Press [B] to return to the Rosalina menu
Press the [HOME] button and close Download Play
Launch Download Play again
Your device should now load the Homebrew Launcher
Launch [ctr-no-timeoffset] from the list
Press [A] to set the offset to 0
Press [Start] to go back to the Homebrew Launcher
Launch [FBI] from the list
From the FBI menu, go to SD -> cia
Select [current directory]
Select [Install and delete all CIAs] then press [A] to confirm
When installation is complete, press [Home] then close Download Play
Launch the [DSP1] app from the Home menu
Once the process has completed, press [B] to terminate the app and return to the home menu

Setup Luma3DS to boot without SD card

Power off your 3DS and insert the SD card into your PC
Create a folder called payloads in the /luma/ folder on your SD card
Copy GodMode9.firm from the GodMode9 .zip to the /luma/payloads/ folder on your SD card
Copy the gm9 folder from the GodMode9 .zip to the root of your SD card
Insert your SD card into your 3DS
Power your 3DS on while holding [START] to boot into GodMode9
Press [A] If prompted to backup essential files or set RTC date & time, then press [A] to continue once completed
Press [Home] for the action menu
Select [Scripts…]
Select [GM9Megascript]
Select [Scripts from Plailect’s Guide]
Select [Setup Luma3DS to CTRNAND]
Press [A] to proceed when prompted
Press [A] to unlock SysNAND (lvl2) writing, then input the button combo
Press [A] to continue
Select [Cleanup SD card]
Press [A] to proceed when prompted
Press [A] to continue once cleanup is complete
Press [B] to go back to the GM9Megascript menu
Select [Exit] to return to the main menu
Press [A] to relock write permissions if prompted
Press [Home] and select [Poweroff system]

Congratulations, you have hacked your 3DS with the Luma3DS custom firmware. You can now install various homebrew apps as well as backup games and DLC with FBI. It is strongly recommended that your next step is to backup your 3DS with GodMode9, you will be able to restore your system in case anything ever goes tragically wrong.

Next Steps

Backup 3DS System (Recommended)

GodMode9 by d0k3 is a powerful homebrew file manager for 3DS with various features
It can also be used to backup your entire 3DS system to a file and restore it later

Installing 3DS Backups

Install 3DS backups easily with FBI

Play DS Games with TWiLight Menu++

Play Nintendo DS ROM’s flawlessly using TWiLight Menu++
The application also features a built-in cheats manager

Install Virtual Console Games (GBC, GBA, SNES etc)

Convert ROM’s to Virtual Console titles and install them directly to your Home menu using New Super Ultimate Injector

Luma3DS Cheats with Checkpoint

Easily load game cheats with Checkpoint and activate them using the cheat manager in the Rosalina menu (Luma3DS)

Dump Cartridges to SD

Play your games without the cartridge inserted by dumping them directly to your SD card with GodMode9
Cartridges can be dumped as multiple formats: .cia for 3DS consoles, .3ds for emulators or .nds for Nintendo DS games