---
title: "Installing boot9strap (kartdlphax)"
---

{% include toc title="目录内容" %}

### 必读事项

kartdlphax is an exploit for the Download Play mode of Mario Kart 7. It can be used with universal-otherapp to install custom firmware on target devices.

In order to follow these instructions, you will need the following:

- A second 3DS with custom firmware (the **source 3DS**) that is the same region as the 3DS you are trying to modify (the **target 3DS**)
- A physical or digital copy of Mario Kart 7 that is the same region as both consoles
- An SD card for both devices
	
### 你需要准备点啥？

On the **source 3DS** (the 3DS with custom firmware):

* The latest release of [kartdlphax](https://github.com/mariohackandglitch/kartdlphax/releases/latest)
* The latest release of [Luma3DS 3GX Loader Edition](https://github.com/Nanquitas/Luma3DS/releases/tag/v10.2.1)

On the **target 3DS** (the 3DS that you are trying to modify):

* 最新版 [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/latest)
* 最新版 [boot9strap](https://github.com/SciresM/boot9strap/releases/download/1.3/boot9strap-1.3.zip)
* The latest release of [standard Luma3DS](https://github.com/LumaTeam/Luma3DS/releases/latest)

#### Section I - Prep Work (source 3DS)

1. Insert the SD card of your **source 3DS** in your computer
1. Copy Luma 3GX Loader Edition's `boot.firm` to the root of the **source 3DS**'s SD card
1. Copy kartdlphax's `plugin.3gx` to the following directory on the **source 3DS**'s SD card, depending on the **region of your copy of Mario Kart 7**:
  - USA: `luma/plugins/0004000000030800`
  - EUR: `luma/plugins/0004000000030700`
  - JPN: `luma/plugins/0004000000030600`
  - Create the `plugins` and `00040000...` folders if they do not already exist
1. Eject the SD card and put it in the **source 3DS**

#### Section II - Prep Work (target 3DS)

1. Insert the SD card of your **target 3DS** in your computer
1. Copy `boot.firm` and `boot.3dsx` from the standard Luma3DS `.zip` to the root of your SD card
1. 在 SD 卡根目录创建一个名为 `boot9strap` 的文件夹
1. 从 boot9strap `.zip` 压缩包中复制 `boot9strap.firm` 和 `boot9strap.firm.sha` 到你 SD 卡的 `/boot9strap/` 文件夹中
1. 从 SafeB9SInstaller `.zip` 压缩包中复制 `SafeB9SInstaller.bin` 到 SD 卡根目录下
1. Eject the SD card and put it in the **target 3DS**

#### Section III - kartdlphax

1. Power on the **source 3DS**
  - If you are prompted to set up Luma3DS, just press START to save the configuration
1. Once in the home menu, press (Left Shoulder) + (Down D-Pad) + (Select) to bring up the Rosalina menu
1. Select "Enable plugin loader"
1. 按 “B” 键退出 Rosalina 菜单
1. Launch Mario Kart 7
  - Ensure that wireless connectivity is enabled
  - kartdlphax should tell you that it is running
1. Navigate to `Local Multiplayer` -> `Create Group`
1. Power on the **target 3DS**
  - Ensure that wireless connectivity is enabled
1. On the **target 3DS**, open the Download Play application (![]({{ "/images/download-play-icon.png" | absolute_url }}){: height="24px" width="24px"}), then select "Nintendo 3DS"
1. Join the group created by the **source 3DS**
1. Select "Start" on the **source 3DS** once it has detected the **target 3DS**
1. Once multiplayer has loaded, navigate to `Grand Prix` -> `50cc` -> (any driver) -> `Mushroom Cup`
1. Wait a while (a percentage should be displayed on the **source 3DS**)
1. If the exploit was successful, the **target 3DS** will have booted into SafeB9SInstaller

#### Section IV - SafeB9SInstaller

1. 等待所有检查完成
1. 出现提示时，按照上屏的提示输入按键组合来安装 boot9strap
1. 安装完成后，按下 “A” 键重启主机

#### 第五步 – 配置 Luma3DS

1. Your target 3DS should have rebooted into the Luma3DS configuration menu
1. 使用方向键和 “A” 键来启用以下设置：
  - **"Show NAND or user string in System Settings"**

现在，你的主机会在插入 SD 卡的情况下自动启动 Luma3ds。
  + Luma3DS 不会给正常的主菜单增添任何看上去十分显眼的东西。 如果你的主机已经启动到了主菜单，这说明自制固件已经在运行了。
  + 在下一页中，我们将会教你复制 Luma3DS 到内部存储当中，使得主机能在没有 SD 卡的情况下启动系统。
  + You will **not** need to use your **source 3DS** to complete any further steps on this guide.

___

### 继续至[完成安装](finalizing-setup)
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