Installing boot9strap (ninjhax2-dx)

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Technical Details (optional)

Ninjhax2 is an exploit for the game “Cubic Ninja” made by smealum. This page uses an updated version of ninjhax by zoogie called ninjhax2-dx, which supports 11.17.0.

This method requires a working 3DS camera.

This process will overwrite your Cubic Ninja save file, if you have one.

What You Need

  • The game “Cubic Ninja”
  • The latest release of ninjhax2-dx
  • The latest release of SafeB9SInstaller (direct download)
  • The latest release of boot9strap (direct download)
  • The latest release of nimdsphax (direct download)
  • The latest release of Luma3DS (the Luma3DS .zip file)


Section I - Prep Work

  1. Power off your console
  2. Insert your SD card into your computer
  3. Copy Launcher.dat from the folder appropriate for your console from the ninjhax2-dx .zip file to the root of your SD card
    • The root of the SD card refers to the initial directory on your SD card where you can see the Nintendo 3DS folder, but are not inside of it
  4. Copy boot.firm and boot.3dsx from the Luma3DS .zip to the root of your SD card
  5. Create a folder named boot9strap on the root of your SD card
  6. Copy boot9strap.firm and boot9strap.firm.sha from the boot9strap .zip to the /boot9strap/ folder on your SD card
  7. Copy SafeB9SInstaller.bin from the SafeB9SInstaller .zip to the root of your SD card
  8. Create a folder named 3ds on the root of your SD card if it does not already exist
    • This folder stores homebrew applications and data; it is different from the Nintendo 3DS folder that the console automatically generates
  9. Copy the nimdsphax folder from the nimdsphax .zip to the /3ds/ folder on your SD card
  10. Reinsert your SD card into your console
  11. Power on your console

Section II - ninjhax2-dx

  1. Launch “Cubic Ninja” once and select “Create”
    • If prompted, delete all data
  2. Select “QR Code”
  3. Select “Scan QR Code”
  4. On your PC, open the browser and go to ninjhax2-dx website
  5. Select your console’s region and hardware
  6. On your console, scan the QR code
    • If the game exits to the HOME Menu, then the exploit has installed correctly
  7. Launch “Cubic Ninja” again
  8. Your console will have booted into the Homebrew Launcher
  9. Launch nimdsphax from the list of homebrew
  10. If the exploit was successful, you will have booted into SafeB9SInstaller
    • If your console freezes on a red screen, hold the POWER button until it turns off, then retry this section

Section III - Installing boot9strap

In this section, you will install custom firmware onto your console.

  1. When prompted, input the key combo given on the top screen to install boot9strap
  2. Once it is complete, press (A) to reboot your console
  3. Your console should have booted into the Luma3DS configuration menu
    • Luma3DS configuration menu are settings for the Luma3DS custom firmware. Many of these settings may be useful for customization or debugging
    • For the purpose of this guide, leave these options on the default settings (do not check or uncheck anything)
    • If your console shuts down when you try to power it on, ensure that you have copied boot.firm from the Luma3DS .zip to the root of your SD card
  4. Press (Start) to save and reboot

At this point, your console will boot to Luma3DS by default.

  • Luma3DS does not look any different from the normal HOME Menu. If your console has booted into the HOME Menu, it is running custom firmware.
  • On the next page, you will install useful homebrew applications to complete your setup.

Continue to Finalizing Setup