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How to Lock or Unlock an SD Card

Applies to:  Nintendo 3DS, Nintendo 3DS XL, Nintendo 2DS

Step by step instructions on how to adjust write-protection for an SD Card.

Note:

microSD cards are not lockable.

What to Do:

  • Set the lock slider to locked or unlocked.
  • The down position will enable write-protection, locking the card.
  • The up position will unlock the card, enabling you to save and erase data on the card.
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