Installing boot9strap (HBL-USM)

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Technical Details (optional)

In order to exploit the SAFE_MODE firmware of our system, we need to inject an exploited WiFi profile.

As we already have Homebrew access, we can use slotTool to do this.

Once the WiFi profile has been injected, we will use SAFE_MODE, which is a recovery feature present on all 3DS consoles, to activate the exploited WiFi profile.

For a more technical explanation, see here for information about the unSAFE_MODE exploit.

Compatibility Notes

If your (Right/Left Shoulder), (D-Pad Up) or (A) buttons do not work, join Nintendo Homebrew on Discord and ask, in English, for help.

Qué necesitas

  • The latest release of SafeB9SInstaller (direct download)
  • The latest release of boot9strap (direct download)
  • The latest release of unSAFE_MODE
    • You may already have this from a prior section of the guide

Sección I - Preparativos

In this section, you will use Homebrew Launcher to launch slotTool, which will overwrite your Wi-Fi slots with hacked data. Then, you will copy the files needed to trigger the unSAFE_MODE exploit onto your device’s SD card. Your Wi-Fi connection settings will be temporarily overwritten while the exploit is active.

  1. Your console should be powered on and showing the Homebrew Launcher from the previous part of the guide
    • If not, power on your console and enter Homebrew Launcher through your method of choice (likely Pokémon Picross)
  2. Launch slotTool from the list of homebrew
    • If you get stuck on a red screen, forcefully power off the console by holding the power button for fifteen seconds, then retry this section
  3. Select the “INSTALL exploit to wifi slots 1,2,3 & shutdown” option
    • You will see some on-screen text and then your system will shut down
  4. Remove your SD card from your console and connect it to your computer
  5. Crea una carpeta llamada boot9strap en la raíz de tu tarjeta SD
  6. Copia boot9strap.firm y boot9strap.firm.sha desde el .zip de boot9strap a la carpeta /boot9strap/ en tu tarjeta SD
  7. Copia SafeB9SInstaller.bin desde el .zip de SafeB9SInstaller a la raíz de tu tarjeta SD
  8. Copy usm.bin from the unSAFE_MODE .zip to the root of your SD card
  9. Put your SD card back into your console

Section II - unSAFE_MODE

In this section, you will enter Safe Mode (a feature available on all 3DS family devices) and navigate to a menu where unSAFE_MODE will be triggered, which will launch you into the boot9strap (custom firmware) installer.

  1. With your device still powered off, hold the following buttons: (Left Shoulder) + (Right Shoulder) + (D-Pad Up) + (A), and while holding these buttons together, power on your device
    • Keep holding the buttons until the device boots into Safe Mode (a “system update” menu)
    • If you’re unable to get into Safe Mode after multiple attempts, one of your buttons may be failing or broken. If this is the case, join Nintendo Homebrew on Discord and ask, in English, for help.
  2. Press “OK” to accept the update
    • There is no update. This is part of the exploit
  3. Press “I accept” to accept the terms and conditions
  4. The update will eventually fail, with the error code 003-1099. This is intended behaviour
  5. When asked “Would you like to configure Internet settings?”, select “Yes”
  6. On the following menu, navigate to Connection 1 -> Change Settings -> Next Page (right arrow) -> Proxy Settings -> Detailed Setup (image)
  7. If the exploit was successful, your device will have booted into SafeB9SInstaller

Sección III - Instalar boot9strap

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

  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 device
  3. Your device 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 device 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. Presiona (Start) para guardar y reiniciar

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.

Section IV - Restoring WiFi Configuration Profiles

In this section, you will enter the Homebrew Launcher (using custom firmware) so that you can restore the Wi-Fi connection slots that were overwritten in Section I.

  1. Inicia la aplicación de Modo Descarga
  2. Espera hasta que veas los dos botones
    • Do not press either of the buttons
  3. Presiona (Left Shoulder) + (Abajo) + (Select) a la vez para abrir el menú de Rosalina
  4. Selecciona “Miscellaneous options”
  5. Selecciona “Switch the hb. title to the current app.”
  6. Presiona (B) para continuar
  7. Presiona (B) para regresar al menú principal de Rosalina
  8. Presiona (B) para salir del menú de Rosalina
  9. Presiona (Home), luego cierra la aplicación de Modo Descarga
  10. Relaunch the Download Play application
  11. Tu consola debería cargar el Homebrew Launcher
  12. Launch slotTool from the list of homebrew
  13. Select “RESTORE original wifi slots 1,2,3”
  14. Your device will then reboot

Continúa en Finalizar instalación