Flashing ntrboot (NDS)

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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 DS or Nintendo DS Lite that is compatible with your flashcart. This method uses the flashcart to run the ntrboot flasher .nds file on your NDS.

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 NDS / NDSL: the Nintendo DS or Nintendo DS Lite which is compatible with your flashcart
    • The target 3DS: the 3DS family device on stock firmware
  • The latest release of ds_ntrboot_flasher (standard flasher; not the dsi flasher)


Section I - Prep Work

  1. Power off the source NDS / NDSL
  2. Insert your flashcart’s SD card into your computer
  3. Copy ds_ntrboot_flasher.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 NDS / NDSL

Section II - Flashing ntrboot

  1. Launch ds_ntrboot_flasher.nds on the source NDS / NDSL using your flashcart
  2. Press (A) to continue
  3. Use (Up) and (Down) to select your flashcart
  4. Press (A) to continue
  5. Press (X) to “load flashrom”
  6. Press (A) to continue
  7. Eject your flashcart from the source NDS / NDSL
  8. Eject the SD card from your flashcart
  9. Reinsert your flashcart into the source NDS / NDSL with the SD card removed
  10. Press (A) to continue
  11. Press (A) to “inject ntrboothax”
  12. Press (A) to select “RETAIL”
  13. Eject your flashcart from the source NDS / NDSL

Continue to Installing boot9strap (ntrboot)