This is the most reliable method as it uses the console's internal keys to handle encryption. 3DS Hacks Guide Copy the file : Place your file anywhere on your 3DS SD card. Launch GodMode9 : Hold the button while powering on your 3DS. Locate the file : Navigate to [0:] SDCARD and find your on the file.
In contrast, a .cia file is an installable package format, very similar to a .exe or .msi file on a PC. It's the standard format used by the Nintendo eShop to distribute games and updates, and consequently, it's the format required by modern Custom Firmware (like Luma3DS) for installation onto a console's SD card. Converting a .3ds file to .cia essentially repackages the raw cartridge dump into an installer.
If you'd like, I can give you a step-by-step guide on installing the resulting CIA files using FBI, or explain how to dump your own cartridges to make the .3ds files in the first place. .3ds to .cia converter
Press the A button on the file to bring up the options menu.
It is also possible to go the other way, though less common. Converting .cia to .3ds is useful if you want to use a digital eShop game on a flashcart. This is the most reliable method as it
| Feature | .3DS Format | .CIA Format | |---------|-------------|--------------| | | 3DS ROM Image | CTR Importable Archive (CTR = Nintendo 3DS codename) | | Primary Use | Flashcarts (e.g., Gateway, Sky3DS) or emulators (Citra) | Installing to 3DS SD card via custom firmware (CFW) | | Installation | No installation; runs directly from cartridge or flashcart | Installs as a digital title to the 3DS Home Menu | | Structure | Raw dump of a game cartridge | Packaged with metadata, title ID, and ticket | | Modification | Difficult to modify without rebuilding | Can include patches, DLC, or updates | | Save Data | Saves to flashcart or cartridge | Saves to SD card (accessible via FBI/GodMode9) | | Legality | Often associated with pirated ROMs | Same legal issues; but also used for homebrew |
Hold the Start button while powering on your 3DS to open the Luma3DS chainloader, then select GodMode9. Locate the file : Navigate to [0:] SDCARD
Once finished, your new .cia file will be saved in the /gm9/out/ folder on your SD card.
Method 2: PC-Based Conversion (Using 3DS Simple CIA Converter)
Converted games live natively on your system, allowing for official game updates, DLC integration, and standard system sleep functions.
This stands for CTR Importable Archive . This format mimics the digital download packages used by the official Nintendo eShop. Because it matches Nintendo's digital distribution format, a .CIA file can be installed directly to your 3DS SD card and launched right from the console's HOME Menu. Method 1: The Best On-Console Tool (GodMode9)