Common features of a 3DS Randomizer include:
: Subreddits like r/3dsqrcodes frequently feature "randomized" versions of Gen 6 (X/Y, ORAS) and Gen 7 (Sun/Moon, Ultra Sun/Ultra Moon).
| Problem | Solution | | :--- | :--- | | "Failed to install" error | Your SD card is full or the file is corrupted. Delete unused games. | | QR code won't scan | Ensure good lighting. Use FBI's QR scanner, not the default camera app. | | Game freezes on startup | The randomizer broke a critical event flag. Delete and try a different seed. | | Randomization didn't work | You may have installed the base game instead of the patched version. Re-check FBI's install location. | | "SD card is write-locked" | Flip the tiny lock switch on the side of your SD adapter. |
The QR Database is the gold standard for specific Pokémon injections and event codes.
If you find a pre-randomized game hosted as a CIA file, you can install it over Wi-Fi without an SD card reader. on your hacked 3DS (running Luma3DS). Navigate to Remote Install -> Scan QR Code . Scan the QR code found on a trusted community site.