SD Preparation

We will now place the required files for the Atmosphere custom firmware and some additional homebrew files on the SD card.

Atmosphere has its own bootloader, called fusee. For the purposes of this guide we will be using Hekate instead, so that we can back up the system's NAND (internal storage) and take advantage of other advanced features in the future.


File name extensions

If you use Windows, you should enable file name extensions before continuing. See this link for a guide on how to do this.


What you need

  • The latest release of Hekate (Download the hekate_ctcaer_(version).zip release of hekate)
  • The hekate config file: hekate_ipl.ini
  • The DNS-MITM DNS redirection config: emummc.txt
  • The bootlogo zip folder:
  • The latest release of Atmosphere. Download the atmosphere-(version)-master-(version)+hbl-(version)+hbmenu-(version).zip release of Atmosphere.
  • The latest release of JKSV (Download the JKSV.nro release of JKSV)
  • The latest release of FTPD (Download the ftpd.nro release of FTPD)
  • The latest release of NXThemeInstaller (Download the NxThemesInstaller.nro release of NxThemeInstaller)
  • The latest release of NX-Shell (Download the NX-Shell.nro release of nx-shell)
  • The latest release of the hbappstore (Download the appstore.nro release of hbappstore)


  1. Insert your Switch's SD card into your PC
  2. Copy the contents of the Atmosphere .zip file to the root of your SD card
  3. Copy the bootloader folder from the Hekate .zip file to the root of your SD card
  4. Copy the bootloader folder from the file to the root of your SD card
    • If you're asked to merge the bootloader folders, do so.
  5. Copy hekate_ipl.ini to the bootloader folder on your SD card
  6. Create a folder named hosts inside the atmosphere folder on your SD card, and put emummc.txt in it
  7. Create a folder named appstore inside the switch folder on your SD card, and put appstore.nro in it
  8. Copy JKSV.nro, ftpd.nro, NX-Shell.nro and NxThemesInstaller.nro to the switch folder on your SD card
  9. If you were already using your microSD card as a storage device for your games and backed up the Nintendo folder before partitioning your microSD card, please place it back on the root of your microSD card.
  10. Reinsert your SD card back into your Switch

About emummc.txt

Putting the emummc.txt file provided by this guide into /atmosphere/hosts will prevent your emuMMC (emuNAND) from connecting to Nintendo. Not doing this will likely result in a ban.

Your SD card should look similar to this. The Nintendo folder will not be present if your switch has not already booted with the microSD card inserted. sdfilesimg


Continue to Making EmuMMC