---
title: "A9LH to B9S"
---
{% include toc title="Table of Contents" %}
### Required Reading
'Tis page be fer existin' arm9loaderhax users to be updatin' their devices to boot9strap.
All future releases 'o Luma3DS gunna only be made in th' `.firm` format, which gunna only be workin' on systems wit' boot9strap 'n sighax. 'Tis means that if ye want to continue to be receivin' th' latest updates 'o Luma3DS, ye should use 'tis page to be updatin' ye installation.
To use the [magnet](https://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).
To extract the `.7z` files linked on this page, you will need a file archiver like [7-Zip](http://www.7-zip.org/) or [The Unarchiver](https://theunarchiver.com/).
If ye have a PIN enabled on Luma3DS, SafeB9SInstaller gunna be givin' ye an "OTP Crypto Fail" error unless ye temporarily disable ye PIN (ye can be re-enablin' th' PIN after th' update).
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There have been reports 'o a wave 'o bans bein' handed out to CFW users by Nintendo. Fer ye protection, please be followin' these steps before startin' 'tis guide:
1. Be off to System Settin's, then "Internet Setttings", then "SpotPass", then "Sending of System Information"
1. Disable th' "Sending of System Information" option
1. Be out 'o th' System Settin's
1. Go to your Friend List (the [orange Face Icon]({{ "/images/friend-list-icon.png" | absolute_url }}) in the top row of your Home Menu)
+ If you receive an error and are kicked out of the menu, the Friend List setting is either already disabled or your console cannot connect to Nintendo's servers (due to a ban or connection issues)
1. Go to the Friend List settings, then "Friend Notification Settings", then "Show friends what you're playing"
1. Disable th' "Show friends what you're playing" option
1. Exit your Friend List
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### What You Need
Note that th' followin' required file, named `secret_sector.bin`, be th' same one that was found in th' various `data_input.zip` file versions. If ye already have that file on ye hard disk somewhere, ye can be usin' that one instead 'o downloadin' th' one below.
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Note that, only 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 ye do not have a New 3DS, ye gunna not be needin' `secret_sector.bin`.
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* - **New 3DS Users Only:** [secret_sector.bin](magnet:?xt=urn:btih:15a3c97acf17d67af98ae8657cc66820cc58f655&dn=secret_sector.bin&tr=udp%3A%2F%2F9.rarbg.to%3A2710%2Fannounce&tr=udp%3A%2F%2Fbt.xxx-tracker.com%3A2710%2Fannounce&tr=udp%3A%2F%2Fexodus.desync.com%3A6969%2Fannounce&tr=udp%3A%2F%2Fmgtracker.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fopen.demonii.si%3A1337%2Fannounce&tr=udp%3A%2F%2Fpublic.popcorn-tracker.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fthetracker.org%3A80%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.cypherpunks.ru%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.ds.is%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.internetwarriors.net%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.mg64.net%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.open-internet.nl%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.port443.xyz%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.qt.is%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.tiny-vps.com%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.torrent.eu.org%3A451%2Fannounce&tr=udp%3A%2F%2Ftracker.vanitycore.co%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker-2.msm8916.com%3A6969%2Fannounce)
* The latest release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/latest) *(the `.7z` file)*
* The v7.0.5 release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/tag/v7.0.5) *(the `.7z` file)*
* 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 [Anemone3DS](https://github.com/astronautlevel2/Anemone3DS/releases/latest) *(the `.cia` file)*
* The latest release of [Checkpoint](https://github.com/FlagBrew/Checkpoint/releases/latest) *(the `.cia` file)*
* The latest release of [Homebrew Launcher Wrapper](https://github.com/mariohackandglitch/homebrew_launcher_dummy/releases/latest)
* The latest release of [GodMode9](https://github.com/d0k3/GodMode9/releases/latest)
* The latest release of [DSP1](https://github.com/zoogie/DSP1/releases/latest)
* The latest release of [FBI](https://github.com/Steveice10/FBI/releases/latest) *(the `.cia` and `.3dsx` files)*
* The latest release of [ctr-no-timeoffset](https://github.com/ihaveamac/ctr-no-timeoffset/releases/latest)
* The latest release of [Luma3DS Updater](https://github.com/KunoichiZ/lumaupdate/releases/latest) *(the `.cia` file)*
* The latest release of [the Homebrew Launcher](https://github.com/fincs/new-hbmenu/releases/latest)
### Instructions
#### Section I - Prep Work
Fer all steps in 'tis section, overwrite any existin' files on ye SD card.
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1. Power off ye device
1. Insert ye SD card into ye computer
1. Copy `boot.3dsx` to the root of your SD card
1. Create a folder named `3ds` on the root of your SD card if it does not already exist
1. Create a folder named `cias` on th' root 'o ye SD card if it does not already exist
1. Copy `ctr-no-timeoffset.3dsx` to the `/3ds/` folder on your SD card
1. Copy `FBI.3dsx` to th' `/3ds/` folder on ye SD card
1. Copy `Homebrew_Launcher.cia` to the `/cias/` folder on your SD card
1. Copy `lumaupdater.cia` to th' `/cias/` folder on ye SD card
1. Copy `FBI.cia` to the `/cias/` folder on your SD card
1. Copy `DSP1.cia` to the `/cias/` folder on your SD card
1. Copy `Anemone3DS.cia` to the `/cias/` folder on your SD card
1. Copy `Checkpoint.cia` to the `/cias/` folder on your SD card
1. Copy `boot.firm` from the latest version Luma3DS `.7z` to the root of your SD card
1. Copy `arm9loaderhax.bin` from the v7.0.5 Luma3DS `.7z` to the root of your SD card
1. Delete any existin' `.bin` payloads in th' `/luma/payloads/` folder on ye SD card, as they gunna be incompatible wit' boot9strap Luma3DS versions
1. Copy `GodMode9.firm` from th' GodeMode9 `.zip` to th' `/luma/payloads/` folder on ye SD card
1. Copy th' `gm9` folder from th' GodMode9 `.zip` to th' root 'o ye SD card
1. Copy `SafeB9SInstaller.bin` from the SafeB9SInstaller `.zip` to the `/luma/payloads/` folder on your SD card
1. Create a folder named `boot9strap` on th' root 'o ye SD card
1. Copy `boot9strap.firm` 'n `boot9strap.firm.sha` from th' boot9strap `.zip` to th' `/boot9strap/` folder on ye SD card
1. **New 3DS Users Only:** Copy `secret_sector.bin` to th' `/boot9strap/` folder on ye SD card
![]({{ "/images/screenshots/a9lh-to-b9s-file-layout.png" | absolute_url }})
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1. Reinsert ye SD card into ye device
#### Section II - Installing boot9strap
1. Boot your device while holding (Start) to launch SafeB9SInstaller
+ If you see the luma configuration screen instead of SafeB9SInstaller, simply press (Start), then shutdown your 3DS and try again
+ 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 fer all safety checks to be completed
+ If ye get an "OTP Crypto Fail" error, download - [aeskeydb.bin](magnet:?xt=urn:btih:d25dab06a7e127922d70ddaa4fe896709dc99a1e&dn=aeskeydb.bin&tr=udp%3A%2F%2F9.rarbg.to%3A2710%2Fannounce&tr=udp%3A%2F%2Fbt.xxx-tracker.com%3A2710%2Fannounce&tr=udp%3A%2F%2Fexodus.desync.com%3A6969%2Fannounce&tr=udp%3A%2F%2Fmgtracker.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fopen.demonii.si%3A1337%2Fannounce&tr=udp%3A%2F%2Fpublic.popcorn-tracker.org%3A6969%2Fannounce&tr=udp%3A%2F%2Fthetracker.org%3A80%2Fannounce&tr=udp%3A%2F%2Ftracker.coppersurfer.tk%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.cypherpunks.ru%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.ds.is%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.internetwarriors.net%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.mg64.net%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.open-internet.nl%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.opentrackr.org%3A1337%2Fannounce&tr=udp%3A%2F%2Ftracker.port443.xyz%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.qt.is%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.tiny-vps.com%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker.torrent.eu.org%3A451%2Fannounce&tr=udp%3A%2F%2Ftracker.vanitycore.co%3A6969%2Fannounce&tr=udp%3A%2F%2Ftracker-2.msm8916.com%3A6969%2Fannounce), then put it in the `/boot9strap/` folder on your SD card and try again
1. When prompted, input th' key combo given to be installin' boot9strap
1. Once it has completed, press (A) to be rebootin' ye device.
+ If ye device shuts down on boot, ensure that ye have copied `boot.firm` from th' Luma3DS `.7z` to th' root 'o ye SD card
#### Section III - Configuring Luma3DS
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 'n reboot
#### Section IV - Updating the System
If, before following this guide, 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. Update ye device by settin' off to System Settin's, then "Other Settings", then goin' all th' way to th' right 'n usin' "System Update"
+ Updates while usin' B9S + Luma (what ye have) be safe
+ If 'tis gives ye an error, set ye DNS settin's to "auto"
+ If this still gives you an error, [follow CTRTransfer](ctrtransfer), then try updating again
#### Section V - Homebrew Launcher
1. Launch the Download Play application (this [icon]({{ "/images/download-play-icon.png" | absolute_url }})
1. Press (L) + (Down) + (Select) at th' same time to be openin' th' Rosalina menu
1. Select "Miscellaneous options"
1. Select "Switch the hb. title to the current app."
1. Press (B) to continue
1. Press (B) to return to the Rosalina main menu
1. Press (B) to exit the Rosalina menu
1. Press (Home), then close Download Play
1. Launch the Download Play application
1. Ye device should be loadin' th' Homebrew Launcher
1. Launch ctr-no-timeoffset from the list of homebrew
1. Press (A) to set the offset to 0
+ This will set the system clock to match the RTC date&time (which we will set soon)
1. Press (Start) to return to the Homebrew Launcher
1. Launch FBI from th' list 'o homebrew
#### Section VI - Installing CIAs
1. Navigate to `SD` -> `cias`
1. Select "\"
1. Select the "Install and delete all CIAs" option, then press (A) to confirm
1. Press (Home), then close Download Play
#### Section VII - DSP Dump
1. Launch the DSP1 application
1. Once it has completed, press (B) to self-delete the app and return to the home menu
#### Section VIII - CTRNAND Luma3DS
1. Power off ye device
1. Launch GodMode9 by holdin' (Start) durin' boot
1. If ye be prompted to create an essential files backup, press (A) to do so, then press (A) to continue once it has completed
1. If ye be prompted to fix th' RTC date&time, press (A) to do so, then set th' date 'n time, then press (A) to continue
1. Press (Home) to bring up th' action menu
1. Select "Scripts..."
1. Select "GM9Megascript"
1. Select "Scripts from Plailect's Guide"
1. Select "Setup Luma3DS to CTRNAND"
1. When prompted, push (A) to proceed
1. Press (A) to unlock SysNAND (lvl2) writing, then input the key combo given
1. Press (A) to continue
#### Section IX - Cleanup SD Card
1. Select "Cleanup SD Card"
1. When prompted, push (A) to proceed
1. Press (A) to continue
1. Press (B) to return to the main menu
#### Section X - Backup Essential Files
1. Select "Backup Options"
1. Select "SysNAND Backup"
1. Press (A) to confirm
+ 'Tis process gunna be takin' some time
+ If you get an error, make sure that you have at least 1.3GB of free space on your SD card
1. Press (A) to continue
1. Press (B) to return to the main menu
1. Select "Exit"
1. Press (A) to relock write permissions if prompted
1. Navigate to `[M:] MEMORY VIRTUAL`
1. Press (A) on `boot9.bin` to select it
1. Select "Copy to 0:/gm9/out"
1. Press (A) to continue
1. Press (B) to return to the main menu
1. Hold (R) and press (B) at the same time to eject your SD card
1. Insert ye SD card into ye computer
1. Copy `__sysnand_###.bin`, `essential.exefs`, and `boot9.bin` from the `/gm9/out/` folder on your SD card to a safe location on your computer
+ Make backups in multiple locations (such as online file storage)
+ These backups will save you from a brick and/or help you recover files from the NAND image if anything goes wrong in the future
1. Delete `__sysnand_###.bin` and `__sysnand_###.bin.sha` from the `/gm9/out/` folder on your SD card after copying it
1. Reinsert ye SD card into ye device
1. Press (Start) to reboot ye device
___
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Ye can now use Luma3DS Updater to update ye Luma3DS to th' latest version just by openin' it 'n pressin' (A).
This is not the same thing as a System Update; it just downloads and extracts the newest Luma3DS files.
This will only update the Luma3DS files on your SD card. If you boot your device without an SD card, it will use the version you placed in CTRNAND.
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You will now boot Luma3DS CFW SysNAND by default.
Ye can now hold (Select) on boot to launch th' Luma3DS configuration menu.
Ye can now hold (Start) on boot to launch th' Luma3DS chainloader menu (note that th' Luma3DS chainloader menu only be appearin' if it spots more than one payload).
Ye can now hold (Start) + (Select) + (X) on boot to dump th' ARM11 bootrom (`boot11.bin`), th' ARM9 bootrom (`boot9.bin`), 'n ye console unique OTP (`OTP.bin`) to th' `/boot9strap/` folder on ye SD card (note that it gunna not have any kind 'o prompt or message when ye be doin' 'tis).
Ye can now be pressin' (L) + (Down) + (Select) while ye device be booted up to open th' Rosalina menu integrated into Luma3DS. Fer a full list 'o Rosalina's features, please see th' [Luma3DS v8.0 Release](https://github.com/AuroraWright/Luma3DS/releases/tag/v8.0)
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If you would like to upgrade to a bigger sized SD card, all you have to do is format your new SD card as FAT32 and copy paste the contents of the old SD card onto the new SD card.
If your new SD card is bigger than 32GB, then you have to use a different tool to format it, such as [guiformat](http://www.ridgecrop.demon.co.uk/index.htm?guiformat.htm) for Windows, [gparted](http://gparted.org/download.php) for Linux, or [Disk Utility](https://support.apple.com/en-gb/guide/disk-utility/format-a-disk-for-windows-computers-dskutl1010/mac) for Mac.
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To use [NTR CFW](https://github.com/44670/BootNTR/), install [BootNTR Selector](https://gbatemp.net/threads/432911/).
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Fer information on changin' ye device to another region, check out th' [Region Changin'](region-changing) page.
{: .notice--success}
For information on using GodMode9's various features, check out the [GodMode9 Usage](godmode9-usage) page.
{: .notice--success}
Fer information on usin' Luma3DS's various features, check out [its wiki](https://github.com/AuroraWright/Luma3DS/wiki/Options-and-usage).
{: .notice--success}
For information on installing custom themes and splash screens, check out [Theme Plaza](https://themeplaza.eu/).
{: .notice--success}