Flashing ntrboot (DSi)

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Required Reading

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

This method requires temporary access to a Nintendo DSi that is compatible with your flashcart.

Note that more recent DSi versions have blocked access to some flashcarts. This leaves them unable to launch the flasher .nds file on newer versions. The ntrboot compatible flashcarts are able to launch .nds files under the following versions:

  • R4i Gold 3DS RTS : <= 1.4.5
  • Acekard 2i : <= 1.4.4
  • R4i Gold 3DS “Starter” : <= 1.4.5
  • R4i Ultra : <= 1.4.1
  • Infinity 3 R4i : <= 1.4.5

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
  • Two devices
    • The source DSi: the Nintendo DSi which is compatible with your flashcart
    • The target 3DS: the 3DS family device on stock firmware
  • The latest release of ak2i_ntrcardhax_flasher (dsi flasher; not the standard flasher)


Section I - Prep Work

  1. Power off the source DSi
  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 the source DSi

Section II - Flashing ntrboot

  1. Launch ak2i_ntrcardhax_flasher_dsi.nds on the source DSi 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)