Guide_3DS/_pages/zh_CN/updating-b9s.txt

---
title: "Updating B9S"
---

{% include toc title="Table of Contents" %}

This page is for existing boot9strap users to update their installation of boot9strap to the latest version.

{% 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 %}

<div class="notice--danger">{{ notice-1 | markdownify }}</div>

### What you need

* The latest release of [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/latest)
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/latest) *(standard boot9strap; not the `devkit` file, not the `ntr` file)*
* The latest release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/latest) *(the `.7z` file)*
* [`cleanup_sd_card.gm9`]({{ "/gm9_scripts/cleanup_sd_card.gm9" | absolute_url }})

### Instructions

#### Section I - Prep Work

For all steps in this section, overwrite any existing files on your SD card.
{: .notice--info}

1. Insert your SD card into your computer
1. Create a folder named `boot9strap` on the root of your SD card
1. Copy `cleanup_sd_card.gm9` to the `/gm9/scripts/` folder on your SD card
1. Copy `SafeB9SInstaller.firm` from the SafeB9SInstaller `.zip` to the `/luma/payloads/` folder on your SD card
1. Copy `boot9strap.firm` and `boot9strap.firm.sha` from the boot9strap `.zip` to the `/boot9strap/` folder on your SD card
1. Reinsert your SD card into your device

#### Section II - Installing boot9strap

1. Reboot holding (Start) during boot to launch the Luma3DS chainloader menu
1. Launch SafeB9SInstaller by pressing (A)
1. Wait for all safety checks to complete
1. When prompted, input the key combo given to install boot9strap
1. Once it has completed, hold (Start) while pressing (A) to reboot your device to the Luma3DS chainloader
  + If you encounter an error booting your device after the B9S update, just continue to fix it

#### Section III - Update Luma3DS

1. Power off your device
1. 将你的 SD 卡插入到您的计算机
1. Copy `boot.firm` from the Luma3DS `.7z` to the root of your SD card, replacing the existing file
1. Reinsert your SD card into your device

#### Section IV - Cleanup SD Card

Note that this script will remove the `/boot9strap/` and `/cias/` folders from your SD card!
{: .notice--danger}

1. Launch GodMode9 by holding (Start) during boot
1. If you are prompted to create an essential files backup, press (A) to do so, then press (A) to continue once it has completed
1. If you are prompted to fix the RTC date&time, press (A) to do so, then set the date and time, then press (A) to continue
  + Note that, if you had to fix the RTC date and time, you will have to fix the time in the System Settings as well after this guide
1. Press (Home) to bring up the action menu
1. Select "Scripts..."
1. Select "cleanup_sd_card"
1. When prompted, press (A) to proceed
1. Press (A) to continue
1. Hold (R) and press (Start) to power off your device