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If you bought a cheap or unbranded SD card, it might be a spoofed card that corrupts data once it exceeds its true physical capacity. Use a free PC program like
to run a complete read/write test on the card to ensure it is healthy. Step 5: Format the SD Card and Re-copy Files
Occasionally, the 3DS operating system logs a corrupted ticket for a failed install, blocking all future attempts for that same title. Open your 3DS System Settings Data Management right arrow Nintendo 3DS right arrow