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---
title: "Updating B9S"
---
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{% include toc title="Πίνακας περιεχομένων" %}
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### Required Reading
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This page is for existing boot9strap users to update their installation of boot9strap to the latest version.
{% capture notice-1 %}
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While we believe custom firmware is relatively safe at this time, it is important to note that it will never be "ban free".
You should avoid the following actions:
1. Piracy
1. Cheating online
1. Suspicious behaviour on eShop (for example, credit card chargebacks)
We believe SpotPass and StreetPass are also safe for use at this time.
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{% endcapture %}
<div class="notice--danger">{{ notice-1 | markdownify }}</div>
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### What You Need
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* 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)*
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* The latest release of [Luma3DS](https://github.com/AuroraWright/Luma3DS/releases/latest)
* The latest release of [the Homebrew Launcher](https://github.com/fincs/new-hbmenu/releases/latest)
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### Instructions
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#### Section I - Prep Work
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For all steps in this section, overwrite any existing files on your SD card.
{: .notice--info}
1. Εισάγετε την κάρτα SD στον υπολογιστή σας
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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
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1. Copy `SafeB9SInstaller.firm` from the SafeB9SInstaller `.zip` to the `/luma/payloads/` folder on your SD card
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1. Reinsert your SD card into your device
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#### Section II - Installing boot9strap
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1. Launch Luma3DS chainloader menu by holding (Start) during boot
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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
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1. Once it has completed, hold (Start) while pressing (A) to reboot your device to the Luma3DS chainloader
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+ If you encounter an `argc = 0` error booting your device after the B9S update, just continue to fix it
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#### Section III - Update Luma3DS
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1. Power off your device
1. Εισάγετε την κάρτα SD στον υπολογιστή σας
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1. Copy `boot.firm` from the Luma3DS `.zip` to the root of your SD card, replacing the existing file
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1. Reinsert your SD card into your device
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1. Power on your device
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#### Section IV - Configuring Luma3DS
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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. Πατήστε (Start) γ ι α αποθήκευση των αλλαγών και επανεκκίνηση
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___
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### Continue to [Finalizing Setup](finalizing-setup)
{: .notice--primary}