The below wiki article is based on user submitted content.
Please verify all hyperlinks and terminal commands below!

1. 3ds Cia Files
2. Convert 3ds To Cia Godmode9 Failed
3. Convert 3ds To Cia Godmode9

You can find more homebrew for your 3DS here that you could try converting. 3DSXLauncher Loader is a CIA forwarder for 3DSX homebrews. It means you can “convert” a 3DSX homebrew to a CIA ones (in reality it’s not converted but it’s just executed with a modified version of hblauncherloader by yellows8). 3ds to CIA Converter – How To Convert 3ds To Cia March 5, 2020 News today we're gonna learn how to convert 3ds files into.CIA files so that you can be able to install them with FBI on your 3ds. Press (A) on your.3ds file to select it, then select “NCSD image options”, then select “Build CIA from file” Your installable.cia formatted file will be outputted to the /gm9/out/ folder on your SD card. Im trying to convert a modded version of persona q2 from 3ds to cia but for some reason after i updated luma godmode9 just crashes my ds whenever i try to load it. I tried redownloading it and luma including older verions and it wont work so i cant use godmode to convert. I found a couple things online but the game either crashes when i open it or says it needs to be updated before i can play.

How to Transfer 3DS Save Data to Citra

There are multiple ways to transfer 3DS save data to Citra in a usable form, but the important thing to note is that whatever tool used to get the save data off of the 3DS supports exporting expanded save data. Save data lives in Citra’s emulated SD card directories (user/sdmc/Nintendo 3DS/000...0/000...0/title/[game-TID-high]/[game-TID-low]/data/00000001/).

threeSD

threeSD is a tool written to help import data from your 3DS for Citra more conveniently.

Refer to threeSD Quickstart Guide for importing your installed titles, updates, DLCs, save data, extra data, system files, etc. Note that you’ll still need a hacked 3DS with GodMode9 to obtain your keys so that threeSD can decrypt the data on your SD card.

Checkpoint

As the supported way of transferring save data, Checkpoint is easy to install and use.

Required tools

• A 3DS with boot9strap installed
• Checkpoint.
• SD card reader (preferred), or a way to use wireless file transfer

Installing Checkpoint

1. Download Checkpoint from the link above.
2. For cia installation, transfer the cia file to the SD card and install it with a cia installer such as FBI. For Rosalina-based Homebrew Launcher, transfer the 3dsx file to /3ds/ on the SD card. Hax-based Homebrew Launchers are not supported by Checkpoint.

Transferring Save Data

1. Open Checkpoint. If this is the first time launching Checkpoint, it may take a considerably longer than usual depending on the amount of installed titles.
2. Highlight the game you want to dump by navigating to it with the D-pad.
3. Press A and select Backup on the bottom screen. You will be prompted Yes or No. Select Yes by pressing A.
4. You will have the option to name the save folder. Name it whatever you want or use the name given to it. Press OK on the bottom screen.
5. The top screen will flash a message Success! Progress correctly saved to disk. Exit out of Checkpoint.
6. Transfer all files located in /3ds/Checkpoint/saves/[Game Name]/[Folder created in Step 4] to the computer.
7. Place the files in Citra’s emulated SD card’s save directory. You can open the save directory by right-clicking on a game in Citra and clicking “Open Save Data Directory”. If the directory doesn’t exist, start the game once and the directory will be created.

Example diagram showing the correct location of New Super Mario Bros. 2 save data in Citra’s User Directory.

• 1Dumping Methods
  • 1.1ARM9-homebrew-enabled 3DS (Recommended)
  • 1.2DS + DS Slot-1 Flashcart + DS Slot-2 Flashcart
  • 1.3DS + DS flashcart/homebrew-enabled 3/DS/i/Wii/U + WEP Wi-FI + PC/phone/tablet
  • 1.4Homebrew-enabled DSi/3DS DSi Mode

Dumping Methods

ARM9-homebrew-enabled 3DS (Recommended)

Tools

• A Nintendo (New) {2/3}DS with a method to run 'bare-metal' ARM9 software. Methods include having a custom firmware installed or using a DS flashcart with ntrboothax.
• GodMode9 (Ensure you are using the latest so you can notate the gamecart ID.)

Dumping

• Run GodMode9
• Note down the Cart ID (eight digit hex number) displayed beside 'GAMECART'.
• Navigate into 'GAMECART'
• Copy the .nds file without 'trim' in the name to the SD card

3ds Cia Files

DS + DS Slot-1 Flashcart + DS Slot-2 Flashcart

todo: can you send the software over download play instead of using a slot-1 flashcart?

Tools

• A Nintendo DS or Nintendo DS Lite with a slot-1 flashcart
• A slot-2 flashcart compatible with your slot-1 flashcart.

Dumping

• Run wooddumper
• Follow the on-screen instructions

DS + DS flashcart/homebrew-enabled 3/DS/i/Wii/U + WEP Wi-FI + PC/phone/tablet

Tools

• A Nintendo DS or Nintendo DS Lite with a way to boot homebrew, for example:
  • A flashcart (or similar unlicensed cart) that works with the console and can boot NDS homebrew
  • A Wii (or Wii U) that can boot Wii homebrew or another 3/DS/i that can boot DS homebrew, to send homebrew over DS Download Play using Haxxstation
• A way to create an unsecured or WEP-secured Wi-Fi network (e.g. using a wireless router, or PC/tablet/smartphone hotspot software)
• A computer (PC/tablet/smartphone) connected to said network
• An FTP client on said computer (many operating systems, browsers and file managers have basic FTP support)
• The wooddumper homebrew

Dumping

• Setup your DS to connect to the Wi-Fi network using a DS game with Wi-Fi support (the DSOrganise homebrew may also work)
• Run wooddumper
• Follow the on-screen instructions
• Open the on-screen ip address in your FTP client
• Copy the .nds and .txt file to your computer. The .txt file contains the Cart ID.

Homebrew-enabled DSi/3DS DSi Mode

todo:

• GodMode9i should work with all carts
• What is the difference between the 'DSi version of wooddumper' and the '3DS DSi Mode version of wooddumper

This does not work with DSi carts.

Tools

• A Nintendo DSi that can run homebrew / a 3DS that can run homebrew in its DSi Mode
• A copy of the DSi version of Wooddumper (or the 3DS DSi Mode version of wooddumper).

Dumping

• Run WoodDumper.
• Follow the on-screen instructions.
• You may need to restart your console after each dump due to the cartridge reader turning off once a game is ejected.

Gathering Dump Info

Only needed for new dumps

• Encrypted CRC32: Generated from the ROM file using GameHeader.
• Encrypted MD5: Ditto: Generated from the ROM file using GameHeader.
• Encrypted SHA-1: Ditto: Generated from the ROM file using GameHeader.
• Game title: Most obvious, is located everywhere. Please include subtitle if any.
• ROM Region: The region the disc originated from like USA, Japan or Europe
• ROM Revision: The revision found in the ROM data.
• ROM Serial: The four-character serial found in the ROM data.
• Languages/Language Select: Some games either show a language selection screen at startup or in the game options. Many games will boot with different languages depending on the active language selected in the BIOS. Booting the game with each language selected in the bios is necessary to identify the supported languages for these games. Note that it is possible to submit a game without checking the languages, but this then needs to be stated in your submission.
  • Tip: Using an emulator like Desmume can speed up the language checking dramatically since you can switch the BIOS language in the emulator settings much faster than on a real DS.
  • You can hold down the tab key to speed up emulation.

Needed for new dumps and redumps

Convert 3ds To Cia Godmode9 Failed

• CRC32: Generated from the ROM file using HxD or HashTab on windows, or by using crc32 in a terminal emulator for linux/mac.
• MD5: As above, or by using md5 in a terminal emulator for linux/mac.
• SHA-1: As above, or by using shasum -a 1 in a terminal emulator for linux/mac.
• SHA-256: As above, or by using shasum -a 256 in a terminal emulator for linux/mac.
• Size: The size of the ROM in bytes.
• Cart Serial: It is located on the label on the front of the cart the form of 'XXX-XXXX-XXX' (where X is a letter or number), also it may have a number (Like -1 or -2) appended.
• Additional Cart Serial: The serial printed on the back of the cart. Example: A2DPN0J08.
• Box Barcode: The number on the case displayed beneath the vertical lines, see Barcode.
• Box Serials: The serial on the case. Example: NTR P A2DP, NTR-A2DP-UKV
• PCB serial(s): The string of characters displayed on the part of the board inside the cart that is visible from outside the cart. Use '▼' for the triangle character and one space character for each empty 'slot'. Use '•' for the small circle characters that are sometimes used.
• Chip(s) serial(s) (optional): The codes on the ROM chip inside the cart. You would need to break open the cart to see these.
• Scans: The following scans (or photos) would be good to have: Front and back of the following items - box, cart and PCB. For Nintendo DS a photo of the top of the cart would also be useful.
• Cart ID: This is an eight digit hex number that your dumping tool should display and/or log. This may be shortened to four digits by the tool and a prefix of 'NTR' may be added. Make sure to add the extra zeroes to the front of the number and remove the NTR prefix.

Convert 3ds To Cia Godmode9