3Down

3DS CTRNAND Downgrade

View project on GitHub

Welcome to 3Down

If you went over here, you probably are a N3DS user using Arm9LoaderHax/Boot9Strap + Luma3DS/Corbenik/anything else that supports the 11.4 NFIRM of the 3DS.

And you want to CTRTRANSFER to another Firmware instead of using SysDowngrader. So just follow the given instructions.

NEVER EVER WRITE CHANGES TO YOUR SYSNAND WITHOUT HAVING A NAND BACKUP

What you need

  • The latest release of Decrypt9WIP
  • The latest release of Luma3DS
  • A Torrent Client like Deluge
  • The CTRNAND-Transfer File corresponding to your 3DS Model, Region and Firmware you want.

N3DS

11.2

11.3

11.4

O3DS/2DS

11.2

11.3

Section I - Updating Luma3DS

Overview of steps

In this section, we will be Updating Luma3DS to the latest one available. If you a already using Luma v7+ you can skip this step

Instructions

Arm9LoaderHax

  1. Remove your SD card from your device, then insert your SD card into your computer
  2. Put the arm9loaderhax.bin from the Luma3DS.7z onto the root of your SD Card, overwriting existing files

Boot9Strap

  1. Remove your SD card from your device, then insert your SD card into your computer
  2. Put the boot.firm from the Luma3DS.7z onto the root of your SD Card, overwriting existing files

Section II - Backing up Tickets & friendsave.bin

Overview of steps

In this section, we will be backing up your device’s Tickets and friendsave.bin

Instructions

  1. Remove your SD card from your device, then insert your SD card into your computer

If using Arm9LoaderHax

  1. Put the Decrypt9WIP.bin from the Decrypt9WIP release into /luma/payloads

If using Boot9Strap

  1. Put the Decrypt9WIP.firm from the Decrypt9WIP release into /luma/payloads

  2. Put the SD Card back into your N3DS and launch the Luma3DS Chainloader by holding START at boot
  3. Launch Decrypt9WIP
  4. Navigate to Ticket/Titlekey Options
  5. Navigate to Ticket Dump (SysNAND) / (EmuNAND) if you are using this guide on an EmuNAND
  6. Wait for the process to finish
  7. Navigate to SysNAND Options / EmuNAND Options if you are using this guide on an EmuNAND
  8. Navigate to System Save Dump…
  9. Select Dump friendsave.bin

Section III - CTRNAND Transfer

Overview of steps

In this section, we will be flashing your Device’s CTRNAND partition to the desired version

Instructions

  1. Remove your SD card from your device, then insert your SD card into your computer
  2. Extract the files9 folder found in the 11.X.0-3XX_ctrtransfer_x3ds.7z file to the root of your SD Card
  3. Put the SD Card back into your N3DS and launch the Luma3DS Chainloader by holding START at boot
  4. Launch Decrypt9WIP
  5. Navigate to SysNAND Options / EmuNAND Options if you are using this guide on an EmuNAND
  6. Navigate to CTRNAND transfer…
  7. Select Auto CTRNAND Transfer
  8. Put in the given Code to unlock NAND writing
  9. Select 11.X.0-3XX_ctrtransfer_x3ds.bin and hit A to confirm
  10. Wait for the process to finish and reboot

Section IV - Restoring Tickets

Overview of steps

In this section, we will be restoring your device’s Tickets and friendsave.bin

Instructions

  1. Launch Decrypt9WIP
  2. Navigate to Ticket/Titlekey Options
  3. Navigate to SysNAND Options / EmuNAND Options if you are using this guide on an EmuNAND
  4. Navigate to System Save Inject…
  5. Select Inject friendsave.bin
  6. Put in the given Code to unlock NAND writing and confirm the injecton
  7. Launch FBI
  8. Navigate to SD -> files9
  9. Navigate to current directory
  10. Hit A
  11. Select Install and delete all Tickets and hit A to install
  12. Press B to decline Titles being downloaded from Ninty’s CDN Servers

Donations

If you want to support me to keep this project alive you can do that right Here:

  • Paypal
  • Bitcoin: 19oxvLrCc688DRV9cXTSV1wnQtozRKC6uC

(I made most of the images myself, cleaned them up and I am seeding the Torrents by myself rn!)

Contact

  • Mail: adrian.f.castro.mail@gmail.com
  • Temp: @addi33
  • Discord: #4530

Credits

  • me (adrifcastr/addi33)
  • MegaMagikarp
  • Yuan
  • aut0mat3d
  • d0k3 for his work on Decrypt9WIP
  • saibotu for some ticket related info
  • Plailects-Guide-Writing-Style
  • AlexL29 for updating the guide for Boot9Strap

Do you see any ads? ^^

(Disclaimer: I am not responsible if your console takes any type of damage!)