---
lang: ja-JP
layout: wiki
section: ds-index
category: guides
title: Removing ntrboot
description: How to remove ntrboot and restore a flashcart
tabs:
  - dsi: DSi
    3ds: 3DS
---

Once a flashcart has been flashed with **ntrboot** it is typically no longer usable as a DS flashcart (with the exception of certain flashcarts such as the Acekard 2i). It is possible to restore a flashrom file back to an ntrboot compatible flashcart to return it to it's previous functionality. If you followed the ntrboot guide, you should have a copy of the flashrom backup.

### Required hardware

To remove ntrboot from your flashcart you will need:

- A flashcard that has been flashed with ntrboot
- A hacked DSi/3DS running ntrboot flasher in order to restore the flashrom backup to the flashcard
- A flashrom backup of your flashcart. If you followed the ntrboot flashing guide, you should have this as a `.bin` file in the `ntrboot` folder from your flashcart MicroSD card or DSi/3DS SD card
- If you do **not** have this backup, you may download the corresponding flashrom backup for your flashcart from the [3ds.hacks.guide ntrboot guide](https://3ds.hacks.guide/installing-boot9strap-\(ntrboot\).html#section-v-removing-ntrboot). These are available as magnet links and require torrent client like [qBittorrent](https://www.qbittorrent.org/download.php) or [Deluge](http://dev.deluge-torrent.org/wiki/Download) to download them

{% capture tab-dsi %}

You must have already followed [dsi.cfw.guide](https://dsi.cfw.guide) and have a way of running homebrew.
{:.alert .alert-warning}

1. Place your flashcart's flashrom backup in the `ntrboot` folder on your DSi SD card. Create this folder if it does not exist
2. Download the [ntrboot flasher](/assets/files/ntrboot_flasher_nds.nds) to anywhere on your SD card
3. Insert your SD card into a modded DSi, then run the ntrboot flasher
4. Follow the instructions on screen. Select your cartridge from the list, then choose the `Restore Flash` option. After the restore has finished, your flashcart should now work as a DS flashcart again

{% endcapture tab-dsi %}
{% assign tab-dsi = tab-dsi | split: "////////" %}

{% capture tab-3ds %}

You must have already followed [3ds.hacks.guide](https://3ds.hacks.guide) and have luma installed
{:.alert .alert-warning}

1. Place your flashcart's flashrom backup in the `ntrboot` folder on your 3DS SD card. Create this folder if it does not exist.
2. Download the [ntrboot flasher](/assets/files/ntrboot_flasher.firm) to your SD card as `sdmc:/luma/payloads/ntrboot_flasher.firm`
3. Insert your SD card into a modded 3DS. Power on your 3DS while holding `START` to open the luma chainloader, then select the ntrboot flasher
4. Follow the instructions on screen. Select your cartridge from the list, then choose the `Restore Flash` option. After the restore has finished, your flashcart should now work as a DS flashcart again

{% endcapture tab-3ds %}
{% assign tab-3ds = tab-3ds | split: "////////" %}

### Removing ntrboot

{% assign tabs = tab-dsi | concat: tab-3ds %}
{% include tabs.html index=0 tabs=tabs %}

### Troubleshooting

In some cases, the restore may fail. This may be due to either an incorrect flashrom backup file, or your flashcard may be incompatible with the restore. ntrboot uses a hardcoded name for restoring flashrom backups. If you renamed the `.bin` file and do not have the original name, you can create a flash dump which will create a `.bin` file of the correct name of which you can then use to rename your flashrom backup.

If you are unsure and require assistance you can ask in the [DS(i) Mode Hacking](https://ds-homebrew.com/discord) Discord server.