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---
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title: "Installing boot9strap (2xrsa)"
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---
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{% include toc title="Table of Contents" %}
### What you need
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* The latest release of [SafeB9SInstaller](https://github.com/d0k3/SafeB9SInstaller/releases/latest){:target="_blank"}
* The latest release of [boot9strap](https://github.com/SciresM/boot9strap/releases/latest){:target="_blank"} *(standard boot9strap; not the `devkit` file, not the `ntr` file)*
* The latest release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/latest){:target="_blank"} *(the `.7z` file)*
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* The latest release of [the Homebrew Launcher](https://github.com/fincs/new-hbmenu/releases)
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### Instructions
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#### Section I - Prep Work
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1. Slå av enheten
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1. Sett inn SD-kortet i datamaskinen din
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1. Copy `boot.firm` from the Luma3DS `.7z` to the root of your SD card
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1. Copy `boot.3dsx` to the root of your SD card
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1. Create a folder named `boot9strap` on the root of your SD card
1. Copy `boot9strap.firm` and `boot9strap.firm.sha` from the boot9strap `.zip` to the `/boot9strap/` folder on your SD card
1. Copy `arm9.bin` and `arm11.bin` from the SafeB9SInstaller `.zip` to the root of your SD card
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![]({{ "/images/screenshots/boot9strap-2xrsa-file-layout.png" | absolute_url }})
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{: .notice--info}
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1. Sett inn SD-kortet i konsollen igjen
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1. Power on your device
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#### Section II - Launching SafeB9SInstaller
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1. Launch the browser and go to the following URL on your device
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+ `http://2xrsa.3ds.guide`
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+ If you are on a New 3DS, New 2DS, or Old 2DS and Wireless Communication is off, you can re-enable the wireless by removing the battery and unplugging the charger for several seconds then booting back up
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+ Hvis du får feilmeldingen "This service is not available in your region", bruk systeminnstillingene for å sette enhetens land til å matche NAND regionen du installerte med 2.1.0 CTRTransfer
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+ If you forgot to disable parental controls before CTRTransfering or otherwise cannot access wireless settings, note that the device will autoconnect to any network named `attwifi` with no password
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+ If you get another error, [follow this troubleshooting guide](troubleshooting#a-browser-based-exploit-is-not-working)
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1. If the exploit was successful, you will have booted into SafeB9SInstaller
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#### Section III - Installing boot9strap
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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
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#### Section IV - Configuring Luma3DS
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1. Your device should have rebooted into the Luma3DS configuration menu
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+ If you get a black screen, [follow this troubleshooting guide](troubleshooting#black-screen-on-sysnand-boot-after-installing-boot9strap)
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1. Use the (A) button and the D-Pad to turn on the following:
+ **"Show NAND or user string in System Settings"**
1. Trykk (Start) for å lagre og starte på nytt
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+ If you get an error, just continue the next page
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___
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New 3DS 2.1.0 users *must* [restore their NAND backup](godmode9-usage#nand_restore) before going to the [Finalizing Setup](finalizing-setup) page.
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{: .notice--danger}
Continue to [Finalizing Setup](finalizing-setup)
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{: .notice--primary}