Installing boot9strap (MSET)

For support in English, ask for help at Nintendo Homebrew on Discord.
If you appreciate this guide, I accept Donations through PayPal or Bitcoin.

If you have already hacked your device before and have a EmuNAND based CFW setup, this guide deals exclusively with SysNAND and you should follow all instructions from within or applying to SysNAND. Note that the terms EmuNAND and RedNAND refer to slightly different implementations of the same concept.

What you need

  • The latest release of SafeB9SInstaller
  • The latest release of boot9strap (standard boot9strap; not the devkit file, not the ntr file)
  • The latest release of Luma3DS (the .7z file)
  • The Homebrew Starter Kit
  • Any DS flashcart that works on your device version

Instructions

Section I - Prep Work
  1. Power off your device
  2. Insert your SD card into your computer
  3. Copy boot.firm from the Luma3DS .7z to the root of your SD card
  4. Copy the contents of starter.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.dat from the SafeB9SInstaller .zip to the root of your SD card

  8. Reinsert your SD card into your device
  9. Copy SafeB9SInstaller.nds from the SafeB9SInstaller .zip to your DS flashcart
  10. Power on your device
Section II - Launching SafeB9SInstaller
  1. Start your DS flashcart from your device
  2. Boot SafeB9SInstaller.nds using your flashcart
  3. Select the correct option for your system version
    • 4.X.X -> “4.x SafeB9SInstaller”
    • 6.X.X -> “6.x SafeB9SInstaller”
  4. Reboot the system, then go to System Settings, then “Other Settings”, then “Profile”, then “Nintendo DS Profile”
  5. If the exploit was successful, you will have booted into SafeB9SInstaller
Section III - Installing boot9strap
  1. Wait for all safety checks to complete
  2. When prompted, input the key combo given to install boot9strap
  3. Once it has completed, press (A) to reboot your device
Section IV - Configuring Luma3DS
  1. Your device should have rebooted into the Luma3DS configuration menu
  2. Use the (A) button and the D-Pad to turn on the following:
    • “Show NAND or user string in System Settings”
  3. Press (Start) to save and reboot
    • If you get an error, just continue the next page

Continue to Finalizing Setup