Flashing ntrboot (3DS Single System)

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Required Reading

Before proceeding, ensure you have read all of the information on ntrboot

This method requires nothing more than your stock unhacked 3DS and a compatible flashcart.

Note that more recent 3DS versions have blocked access to some flashcarts, and some flashcarts have always been blocked on the 3DS. This leaves them unable to launch the flasher .nds file on some (or all) versions. The ntrboot compatible flashcarts are able to launch .nds files on the 3DS (under the listed versions):

  • R4i Gold 3DS (RTS) : <= 11.6.0
  • Acekard 2i : <= 4.3.0
  • R4i Gold 3DS “Starter” : 4.1.0 - 4.5.0
  • R4i Ultra : <= 4.3.0
  • Infinity 3 R4i : <= 11.6.0

Ensure your flashcart is able to launch correctly before starting. Be sure to have any required kernel or firmware files copied to your flashcart’s SD card. Consult your specific flashcart’s instructions for more information.

Note that in some rare circumstances, it may be possible for the flashing process to brick a counterfeit flashcart and render it permanently unusable. This is unlikely, but nevertheless only original listed flashcarts are supported. To reduce the chance of receiving a counterfeit card, it is recommended that you use a reputable site to buy your flashcart (such as NDS Card)

What You Need

  • Your ntrboot compatible flashcart
  • The latest release of ak2i_ntrcardhax_flasher (dsi flasher; not the standard flasher)


Section I - Prep Work

  1. Power off your device
  2. Insert your flashcart’s SD card into your computer
  3. Copy ak2i_ntrcardhax_flasher_dsi.nds to your flashcart’s SD card
  4. Reinsert your flashcart’s SD card back into your flashcart
  5. Insert your ntrboot compatible DS / DSi flashcart into your device

Section II - Flashing ntrboot

  1. Launch ak2i_ntrcardhax_flasher_dsi.nds on your device using your flashcart
  2. Press (A) to continue
  3. Use (Up) and (Down) to select your flashcart
  4. Press (A) to continue
  5. Press (A) to “inject ntrboothax”
  6. Press (X) to select “DEVKIT”
  7. Press (A) to continue
  8. Select “EXIT”

Continue to Installing boot9strap (ntrboot)