The file `boot.firm` is what is launched by boot9strap itself after it finishes loading off of NAND. In this case, we are using Luma3DS by [LumaTeam](https://github.com/LumaTeam/) to patch the device, allowing it to run homebrew software.
It is not recommended to skip downloading any of these applications, as many of them will be used later on this page. At the end of this page, your SD card will be cleaned up by removing unnecessary installation files.
If your **New 3DS** was on version 2.1.0 before following this guide, you should [restore your NAND backup](godmode9-usage#restoring-a-nand-backup) before continuing.
If your previous CFW setup was EmuNAND-based and you wish to move the contents of your EmuNAND/RedNAND to SysNAND, follow [Move EmuNAND](move-emunand) before following this page. If you don't know what an EmuNAND is, this doesn't apply to you.
1. Create a folder named `cias` on the root of your SD card if it does not already exist
1. Copy all of the CIA files (`Anemone3DS.cia`, `Checkpoint.cia`, `FBI.cia`, `Homebrew_Launcher.cia`, and `Universal-Updater.cia`) to the `/cias/` folder on your SD card
These screenshots indicate the minimum SD card layout that is required to follow this page. You may have extra files or folders on your SD card, depending on your previous setup or the method that you followed.
1. Update your device by going to System Settings, then "Other Settings", then going all the way to the right and using "System Update"
+ Updates while using B9S + Luma (what you have) are safe
+ The updater may display a message saying "Your system is up to date" instead of updating. This is normal if you are already up to date; continue with the next section
+ If this gives you an error, set your DNS settings to "auto"
1. Copy the `/luma/backups/` folder on your SD card to a safe location on your computer
1. Copy `<date>_<serialnumber>_sysnand_###.bin`, `<date>_<serialnumber>_sysnand_###.bin.sha`, and `essential.exefs` from the `/gm9/out/` folder on your SD card to a safe location on your computer
+ Copy these backups to multiple locations (such as online file storage, an external hard drive, etc.)
+ 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 `<date>_<serialnumber>_sysnand_###.bin` and `<date>_<serialnumber>_sysnand_###.bin.sha` from the `/gm9/out/` folder on your SD card after copying it
- Holding (Select) on boot will launch the Luma3DS configuration menu.
- Holding (Start) on boot will launch GodMode9, or if you have multiple payloads in `/luma/payloads/`, the Luma3DS chainloader.
- By default, pressing (Left Shoulder) + (Down D-Pad) + (Select) while in 3DS mode will open the Rosalina menu, where you can check system information, take screenshots, enable cheats, and more. This can be changed from the Rosalina menu.
- Holding (Start) + (Select) + (X) on boot will make the notification LED show a color for debug purposes. See the [changelog](https://github.com/SciresM/boot9strap/releases/tag/1.4) for a list.
For information on using GodMode9's various features, check out the [GodMode9 Usage](godmode9-usage) and [Dumping Titles and Game Cartridges](dumping-titles-and-game-cartridges) pages.