Guide_3DS/_pages/zh_CN/installing-boot9strap-(safecerthax).txt

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

{% include toc title="目录内容" %}

{% capture technical_info %}
<summary><em>技术细节（选看）</em></summary>
For technical details on the exploit that you will be using on this page, see [here](https://github.com/MrNbaYoh/safecerthax).

{% endcapture %}
<details>{{ technical_info | markdownify }}</details>
{: .notice--info}

### 兼容性注意

safecerthax is compatible with all Old 3DS and Old 2DS devices in all regions on system versions 1.0.0 through 11.14.0.

This exploit will not work on the New 3DS, New 3DS XL, or New 2DS XL. Please ensure that the device you are modding is an Old 3DS, Old 3DS XL, or Old 2DS before continuing.
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### 你需要准备点啥？

* 最新版本的 [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/download/v0.0.7/SafeB9SInstaller-20170605-122940.zip)（直链）
* 最新版本的 [boot9strap](https://github.com/SciresM/boot9strap/releases/download/1.4/boot9strap-1.4.zip)（直链）
* The latest release of [Luma3DS](https://github.com/LumaTeam/Luma3DS/releases/latest) (the Luma3DS .zip file)

### 操作步骤

#### Section I - Hardware Button Check

{% include_relative include/safemodecheck.txt %}

If the camera did NOT appear, you cannot follow this method. If this is the case, stay on your current firmware and ask [Nintendo Homebrew on Discord](https://discord.gg/MWxPgEp) for help.
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#### 第二步 – 准备工作

In this section, you will copy the files needed to trigger the safecerthax exploit.

1. 将你的 SD 卡插入到电脑
1. 解压 Luma3DS `.zip` 里的 `boot.firm` 和 `boot.3dsx` 到你 SD 卡的根目录
  + 根目录指的是你点进 SD 卡看到的目录，你可以在这个目录下看到 Nintendo 3DS 文件夹，但请不要点进去
1. 在 SD 卡根目录创建一个名为 `boot9strap` 的文件夹
1. 从boot9strap `.zip` 文件中复制 `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. 将 SD 卡重新插入你的主机
1. 启动你的主机

#### Section III - safecerthax proxy

In this section, you will change your Internet connection settings to use a proxy network designed to exploit the System Update feature of your device.

{% include_relative include/addproxy.txt %}
1. 将主机关机

#### Section IV - safecerthax

In this section, you will enter Safe Mode (a feature available on all 3DS family devices) where safecerthax will be triggered, which will launch you into the boot9strap (custom firmware) installer.

1. 将你的主机置于关机状态，按住 L + R + ↑ + A 四个按键，然后按下电源键
  + 按住这几个键，直到主机进入安全模式（一个“系统更新”菜单）
1. Press "OK" to accept the update
  + There is no update. This is part of the exploit
1. Press "I accept" to accept the terms and conditions
1. The update will eventually fail, with the error code `003-1099`. This is intended behaviour
1. Press "OK" to close the error message
1. 如果一切成功的话，你将自动进入 SafeB9SInstaller
  + If the device freezes or crashes, force power off the device, then retry this section

#### 第五步 – 安装 boot9strap

{% include_relative include/install-boot9strap-safeb9sinstaller.txt %}
{%- include_relative include/configure-luma3ds.txt %}

{% include_relative include/luma3ds-installed-note.txt %}

#### Section VI - Restoring default proxy

{% include_relative include/rmproxy.txt %}

___

### 继续至[完成安装](finalizing-setup)
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