--- title: "Restoring CFW" --- {% include toc title="Table of Contents" %} ### Leitura Obrigatória This page prepares consoles with an existing modern boot9strap installation for reinstallation of custom firmware applications. It can also be used in the event of a lost or corrupted SD card. ### What You Need * The latest release of [Luma3DS](https://github.com/LumaTeam/Luma3DS/releases/latest) ### Instructions #### Section I - Prep Work 1. Insert your SD card into your computer 1. Copy `boot.3dsx` and `boot.firm` from the Luma3DS `.zip` to the root of your SD card + The root of the SD card refers to the initial directory on your SD card where you can see the Nintendo 3DS folder, but are not inside of it 1. Reinsert your SD card into your device #### Section II - Configuring Luma3DS 1. Turn on your device * You should now see a Luma3DS configuration menu 1. 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 ___ ### Continue to [Finalizing Setup](finalizing-setup) {: .notice--primary}