---
title: "Updating to boot9strap"
---

This page is for existing arm9loaderhax users to update their devices to boot9strap.
{: .notice--info}

All future releases of Luma3DS will only be made in the `.firm` format, which will only be compatible with boot9strap and sighax. This means that to continue receiving the latest updates of Luma3DS, you should use this page to update your installation.
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If you have a PIN enabled on Luma3DS, SafeB9SInstaller will give you an "OTP Crypto Fail" error unless you *either* temporarily disable your PIN (you can re-enable the PIN after the update), *or* download the `aeskeydb.bin` file below.
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To use the [magnet](https://en.wikipedia.org/wiki/Magnet_URI_scheme) links on this page, you will need a torrent client like [Deluge](http://dev.deluge-torrent.org/wiki/Download)
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{% capture notice-1 %}
There have been reports of a wave of bans being handed out to CFW users by Nintendo. To protect yourself, please do the following steps before starting this guide:

1. Go to System Settings, then "Internet Settings", then "SpotPass", then "Sending of System Information"
1. Disable the "Sending of System Information" option
1. Exit the System Settings
1. Go to your Friend's List (the Face Icon in the top row of your Home Menu)
  + If you receive an error and are kicked out of the menu, the Friend's List setting is already disabled
1. Go to the Friend's List settings, then "Friend Notification Settings", then "Show friends what you're playing"
1. Disable the "Show friends what you're playing" option
1. Exit your Friend's List

{% endcapture %}

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#### 你需要

Note that the following required file named `secret_sector.bin` is the same one that was found in the various `data_input.zip` file versions. If you already have that file on your disk somewhere, you can use that one instead of downloading the one below.
{: .notice--info}

Note that, on New 3DS, `secret_sector.bin` is needed to revert the arm9loaderhax exploit, which is why it is not needed for the installation of boot9strap on a stock console. If you do not have a New 3DS, you do not need `secret_sector.bin`.
{: .notice--info}

Note that the the following required file named `aeskeydb.bin` is *not* the same one that was previously used in this guide. It is required to remove the software "3DSafe" as it allows SafeB9SInstaller to retrieve your console unique OTP. This guide has never instructed you to install "3DSafe", so if you do not remember installing it, you most likely do not have it and do not need `aeskeydb.bin`.
{: .notice--info}

* <i class="fa fa-magnet" aria-hidden="true" title="下载链接。 Use a torrent client to download the file."></i> - **"3DSafe" Users:** [`aeskeydb.bin`](magnet:?xt=urn:btih:621f8af00638cb2b00d5bd0c6816543fa00b5fb1&dn=aeskeydb.bin&tr=udp%3A%2F%2Ftracker.tiny-vps.com%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.aletorrenty.pl%3A2710%2Fannounce&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Ftorrent.gresille.org%3A80%2Fannounce&tr=http%3A%2F%2Ftorrent.gresille.org%2Fannounce&tr=udp%3A%2F%2Fexplodie.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.filetracker.pl%3A8089%2Fannounce&tr=http%3A%2F%2Ftracker.tfile.me%2Fannounce&tr=http%3A%2F%2Ftracker.baravik.org%3A6970%2Fannounce&tr=udp%3A%2F%2Ftracker.yoshi210.com%3A6969%2Fannounce&tr=udp%3A%2F%2Fp4p.arenabg.com%3A1337%2Fannounce&tr=udp%3A%2F%2Fzer0day.ch%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2F9.rarbg.com%3A2710%2Fannounce&tr=http%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=http%3A%2F%2Fexplodie.org%3A6969%2Fannounce&tr=http%3A%2F%2Fp4p.arenabg.com%3A1337%2Fannounce&tr=http%3A%2F%2Ftracker1.wasabii.com.tw%3A6969%2Fannounce&tr=http%3A%2F%2Ftracker.aletorrenty.pl%3A2710%2Fannounce)
  + * * 请注意，此文件也将修复"OTP Crypto Fail"的错误 （有或没有安装"3DSafe"均可），例如启用了 Luma3DS PIN码保护的用户 * *
* <i class="fa fa-magnet" aria-hidden="true" title="下载链接。 Use a torrent client to download the file."></i> - **New 3DS Users:** [`secret_sector.bin`](magnet:?xt=urn:btih:15a3c97acf17d67af98ae8657cc66820cc58f655&dn=secret_sector.bin&tr=udp%3A%2F%2Ftracker.filetracker.pl%3A8089%2Fannounce&tr=http%3A%2F%2Ftracker.tfile.me%2Fannounce&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Fexplodie.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.yoshi210.com%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.aletorrenty.pl%3A2710%2Fannounce&tr=udp%3A%2F%2F9.rarbg.com%3A2710%2Fannounce&tr=udp%3A%2F%2Fp4p.arenabg.com%3A1337%2Fannounce&tr=http%3A%2F%2Ftracker1.wasabii.com.tw%3A6969%2Fannounce&tr=http%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=http%3A%2F%2Ftracker.aletorrenty.pl%3A2710%2Fannounce&tr=udp%3A%2F%2Ftracker.leechers-paradise.org%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.tiny-vps.com%3A6969%2Fannounce&tr=http%3A%2F%2Ftracker.baravik.org%3A6970%2Fannounce&tr=udp%3A%2F%2Ftorrent.gresille.org%3A80%2Fannounce&tr=udp%3A%2F%2Fzer0day.ch%3A1337%2Fannounce&tr=http%3A%2F%2Fp4p.arenabg.com%3A1337%2Fannounce&tr=http%3A%2F%2Ftorrent.gresille.org%2Fannounce&tr=http%3A%2F%2Fexplodie.org%3A6969%2Fannounce)
* The latest release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/latest) *(the `.7z` file)*
* The latest release of [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/latest)
* 最新版的 [boot9strap](https://github.com/SciresM/boot9strap/releases/latest)
* 最新版的 [GodMode9](https://github.com/d0k3/GodMode9/releases/latest)
* The latest fork of [Luma3DS Updater](https://github.com/KunoichiZ/lumaupdate/releases/latest)

#### 操作指南

##### 第一部分 - 准备工作

1. Power off your device
1. Insert your SD card into your computer
1. Copy `boot.firm` from the Luma3DS `.7z` to the root of your SD card
1. Create a folder named `cias` on the root of your SD card if it does not already exist
1. Copy `lumaupdater.cia` to the `/cias/` folder on your SD card
1. Create a folder named `boot9strap` on the root of your SD card
1. Copy `GodMode9.firm` from the GodMode9 `.zip` to the `/luma/payloads/` folder on your SD card
1. Delete any existing `.bin` payloads in the `/luma/payloads/` folder on your SD card as they will not be compatible with boot9strap compatible Luma3DS versions
1. Copy `SafeB9SInstaller.bin` from the SafeB9SInstaller `.zip` to the `/luma/payloads/` folder on your SD card
1. Rename `SafeB9SInstaller.bin` in the `/luma/payloads/` folder on your SD card to `start_SafeB9SInstaller.bin`
1. Copy `boot9strap.firm` and `boot9strap.firm.sha` from the boot9strap `.zip` to the `/boot9strap/` folder on your SD card
1. **New 3DS Users:** Copy `secret_sector.bin` to the `/boot9strap/` folder on your SD card
1. **"3DSafe" Users:** Copy `aeskeydb.bin` to the `/boot9strap/` folder on your SD card
  + * * 请注意，此文件也将修复"OTP Crypto Fail"的错误 （有或没有安装"3DSafe"均可），例如启用了 Luma3DS PIN码保护的用户 * *

    ![]({{ base_path }}/images/screenshots/updating-to-b9s-file-layout.png)
    {: .notice--info}

1. Reinsert your SD card into your device

##### 第二部分 - 安装 boot9strap

1. Boot your device while holding (Start) to launch the Luma3DS chainloader menu
  + Some versions of Luma3DS will just directly start whichever payload begins with `start_`
  + If your version does this, just proceed with the instructions
1. Launch SafeB9SInstaller by pressing (A) on it
  + If this gives you an error, try either using a new SD card, or formatting your current SD card (backup existing files first)
1. Wait for all safety checks to complete
1. When prompted, input the key combo given to install boot9strap
1. Once it has completed, press (A) to reboot your device.
  + If your device shuts down on boot, ensure that you have copied `boot.firm` from the Luma3DS `.7z` to the root of your SD card

##### 第三部分 - 设置 Luma3DS

This section is only needed if you are prompted with the Luma3DS configuration menu after the reboot.
{: .notice--info}

1. In the Luma3DS configuration menu, use the (A) button and the D-Pad to turn on the following:    
  + **"Show NAND or user string in System Settings"**
1. Press (Start) to save and reboot

##### 第四部分 - CTRNAND Luma3DS

If, before updating to boot9strap, you already had an EmuNAND setup and would like to move the contents of your previous EmuNAND to your new SysNAND CFW, now is the time to [follow Move EmuNAND](move-emunand) before doing this section.
{: .notice--info}

1. Reboot holding (Start) during boot to launch the Luma3DS chainloader menu
1. Launch GodMode9 by pressing (A)
1. Navigate to `[0:] SDCARD` -> `luma` -> `payloads`
1. Press (X) on `start_SafeB9SInstaller.bin` to delete it
1. 按 (A) 确认
1. Press (B) to return to `[0:] SDCARD`
1. Press (Y) on `boot.firm` to copy it
1. Press (B) to return to the main menu
1. Navigate to `[1:] SYSNAND CTRNAND`
1. Press (Y) to paste a copy of `boot.firm`
1. Select "Copy path(s)"
1. Press (A) to unlock SysNAND (lvl1) writing, then input the key combo given
1. Press (X) on `arm9loaderhax.bin` to delete it
  + If you do not have this file, just proceed with the instructions
1. Press (A) to confirm
1. Press (B) to return to the main menu
1. Navigate to `[0:] SDCARD`
1. Press (Y) on the `luma` folder to copy it
  + If you have files or folders *other than* the ones from following an earlier version of this guide (`config.bin` and `payloads`) in your `luma` directory (such as LayeredFS files), you should instead just copy `config.bin` and `payloads` by marking them with the (L) trigger, then pressing (Y) to copy
1. Press (B) to return to the main menu
1. Navigate to `[1:] SYSNAND CTRNAND` -> `rw`
1. Press (X) on the existing `luma` folder to delete it
  + If you do not have this folder, just proceed with the instructions
1. 按 (A) 确认
1. Press (Y) to paste a copy of the `luma` folder from your SD card
  + If you only copied `config.bin` and `payloads` earlier, you will need to instead create the `luma` folder manually (hold the (R) trigger and pressing (Y) at the same time, give the name `luma`, then press (A) to confirm), then navigate to `luma`, then press (Y) to paste `config.bin` and `payloads`
1. Press (Start) to reboot

##### 第五部分 - 安装 Luma3DS Updater

1. Launch FBI
1. Navigate to `SD` -> `cias`
1. Select `lumaupdater.cia`
1. Select the "Install CIA" option, then press (A) to confirm
1. Press (Home) to exit FBI

___

You can now remove any arm9loaderhax related files from your SD card, such as `arm9loaderhax.bin` on the root of your SD card and the `aeskeydb.bin` file in the `files9` folder on your SD card.
{: .notice--info}

Note that `firm0firm1.bak` and `sector0x96.bak` in the `/boot9strap/` folder on your SD card are only needed in the event of a failed boot9strap install. Once you have installed successfully, you can delete the entire `boot9strap` folder.
{: .notice--info}

This fork of Luma3DS Updater allows for boot9strap compatibility by downloading and extracting the latest Luma3DS `boot.firm` for you.
{: .notice--info}

{% capture notice-6 %}   
你可以在启动时按下Select键，进入Luma3DS的设置菜单。    
You can now hold (Start) on boot to launch the Luma3DS chainloader menu (note that the Luma3DS chainloader menu is only displayed if there is more than one payload detected).
You can now hold (Start) + (Select) + (X) on boot to dump the ARM11 bootrom (`boot11.bin`), the ARM9 bootrom (`boot9.bin`), and your console unique OTP (`OTP.bin`) to the `/boot9strap/` folder on your SD card (note that this will not have any kind of prompt or message).
{% endcapture %}

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