Part 2 (New 3DS) - Drapplys/Guide GitHub Wiki

This part of the guide will take you through the process of downgrading to 9.2.0 (the latest version which gives us full control of the system) using sysUpdater.

This version of sysUpdater (which is compatible with >9.2.0 systems) uses an unstable exploit, and because of this it may take many tries just to load the button prompts.

If sysUpdater crashes at any point during the downgrade (which can happen occasionally), you can power off the system by holding the power button. You will be left with what's called a "partial downgrade" or "partial", which is recoverable.

Although a partially downgraded system may show 9.2.0 as the system version, you are not done. You must restart from the beginning and downgrade a second time to install any files that were not installed. Browserhax will work for partial downgrades as long as you are using the recommended version of sysUpdater.

What you need

  • The Homebrew Launcher and an installed entrypoint (such as menuhax)
  • This version of sysUpdater
  • The latest release of EmuNAND9
  • The 9.2.0 firmware pack zip file for your device and region:

Instructions

  1. Copy sysUpdater.3dsx and sysUpdater.smdh to the /3ds/ folder on your SD card
  2. Copy the 3ds folder from the EmuNAND9 zip to root of your SD card
  3. Delete any existing updates folder from your SD card if there is one
  4. Copy the updates folder from the 9.2.0 firmware zip to the root of your SD card
  5. Eject your SD card and put it back in your 3DS
  6. Boot into the Homebrew Launcher (if you followed the previous part, you can do this by holding dpad down on boot)
  7. Open sysUpdater
  8. If you do not see the button prompts, power off your 3DS by holding the power button and try again (this can take many tries)
  9. If you see button prompts, proceed
  10. Press Y to downgrade
  11. Wait; do not touch anything even if it appears to freeze
  12. If, after around 30 seconds, it is still frozen, it is safe to power off and try again
  13. If you get an error (failed to get CIA info is the most common) before installation, power off your 3DS by holding the power button and try again (this can take many tries)
  14. If you get an error in the middle of installation, follow the instructions in the beginning for partial downgrades
  15. If you freeze on the "Rebooting in 10 seconds" line for longer than 10 seconds, it is safe to power off your 3DS by holding the power button
  16. If you get a black screen after downgrading, boot with the SD card removed; when you have booted, change your theme to anything else then change it back to remove the old menuhax version; afterwards, follow the steps in Part 1 to reinstall menuhax
  17. Check the system settings, you should be on 9.2.0
  18. Launch the Homebrew Launcher using the entrypoint of your choice (such as menuhax)
  19. Open EmuNAND9
  20. Go to EmuNAND Manager Options, then dump SysNAND to sysNAND.bin
  21. Press Select on the main menu to eject your SD card
  22. Put your SD card in your computer, then copy sysNAND.bin to a safe location; make backups in multiple locations; this backup will save you from a brick if anything goes wrong in the future
  23. You can delete sysNAND.bin from your SD card after copying it
  24. Reinsert your SD card into your 3DS, then press Start to reboot