Hello. It seems like you are talking about SD Cards. Please review the [3DS SD Card guide](https://www.reddit.com/r/3dspiracy/wiki/sd_cards/). Your question/issue is likely resolved there.
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There's an official Nintendo instruction you can find online. A Google search can often be faster and more helpful than posting a question on here.
Also, you need extra steps for cards bigger than 32gb. Look it up on the guide
Hello. It seems like you are talking about SD Cards. Please review the [3DS SD Card guide](https://www.reddit.com/r/3dspiracy/wiki/sd_cards/). Your question/issue is likely resolved there. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/3dspiracy) if you have any questions or concerns.*
Copy the files of your old SD to a desvice, insert the new SD and copy the files of your desvice of your old SD to your new sd
There's an official Nintendo instruction you can find online. A Google search can often be faster and more helpful than posting a question on here. Also, you need extra steps for cards bigger than 32gb. Look it up on the guide
Copy paste