By backing up your NAND (the Switch’s internal memory), you will later be able to restore it in the event that anything goes wrong, essentially rewinding it back to a previous state. BIS keys are also good to backup so you can reinstall any firmware version manually should your NAND backup become corrupted or lost.
- In Hekate, select ‘Tools > Backup eMMC > eMMC BOOT0 & BOOT1’
- When finished, remove your SD card (you don’t need to shutdown Hekate), insert it into your PC, and copy the ‘backup’ folder to a safe location on your PC. Afterwards, delete the ‘backup’ folder on your SD card.
- Insert your SD card back into your Switch
- In Hekate, select ‘Tools > Backup eMMC > eMMC RAW GPP’
- If your SD card has less than ~32GB free space, Hekate will provide additional instructions every few minutes about pulling files off of your SD card so it can continue.
- If you weren’t required to copy files during the backup process, once again copy the ‘backup’ folder off of your SD card and put it in a safe location on your PC. Delete the ‘backup’ folder on your SD card.
- Close the Backup menu, go back to the Home tab and tap ‘Reboot > RCM’
- Send the “Lockpick_RCM.bin” payload provided in SDSetup. This should be in the folder Inject – Payloads on your desktop.
- Select Dump from SysNAND and press Power to confirm; press again Power when finished to go back to the Lockpick menu
- Select poweroff from the menu once finished.
- Insert your SD card into your PC.
- Copy the /switch/prod.keys file to a safe location.