Making the Emummc and essential backups

 

Making the emuMMC

Before you start

If you don't plan on using the internet on your emuMMC, it is recommended to boot your switch normally and delete all the wifi networks. You can add them back to your sysnand after completing this guide.

  1. Enter RCM and inject the Hekate payload
  2. Use the touch screen to navigate to emuMMC
  3. Tap on Create emuMMC, then select SD Partition
  4. Tap on Part 1. It will start making the emuMMC now. After it's done return to the emuMMC menu using the Close buttons
  5. Tap on Change emuMMC, then SD RAW 1
  6. Go back to the main menu

After making the emummc

Beware that sysMMC and emuMMC don't use the same Nintendo folder! Once you created your emuMMC, copy the Nintendo folder from the root of the sd card to the emummc/RAW1/ folder.


Making a NAND backup

Important

A NAND backup is crucial. They can be used to restore the device to a working state in case of emergencies.

Once the backup is finished, keep it somewhere safe. The best backup is the one you have but never need, and the worst backup is the one you need but never made. To save space, it's recommended to compress the end-result with a .zip file or something similar.

It's highly recommended that you use an SD card that is formatted to FAT32 and has at least 32 gigabytes of space free. This will still work on smaller cards, but it's not ideal.

Instructions

  1. Enter RCM and inject the Hekate payload
  2. Use the touch screen to navigate to Tools and then Backup eMMC
  3. Tap on eMMC BOOT0 & BOOT1
  4. This should only take a few seconds, but if your SD card is very slow, it may take around a minute.
  5. Tap on Close to continue, then tap on eMMC RAW GPP
  6. This will take a long time. Expect it to take between 10 minutes to an hour (or more, if your SD card is very slow).
  7. On FAT32 SD cards or cards that have less than 32 gigabytes of space available, the NAND will be split into 1 or 2 gigabyte parts.
    • Hekate will stop producing these parts when it runs out of space. When this happens, do the following:
    • Power off your system
    • Insert your SD card into your PC
    • Move all files from the backup folder on your SD card to a safe location on your PC
    • Insert your SD card into your Switch
    • Enter RCM again, inject Hekate again, and continue the backup by tapping on Tools > Backup eMMC > eMMC RAW GPP
    • Repeat the process until the NAND is completely dumped
  8. Press Close > Home > Power Off
  9. Insert your SD card into your PC
  10. Copy the backup folder on your SD card to a safe location on your PC

 


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