Select and format the memory card with the FAT32 file format and create a partition with the cluster size set to 32KB. Put your SD Card into the card reader on your PC (or connect it via an external device). How to format 64GB cards or higher: For PC: You'll need software like MiniTool Partition Wizard or comparable programs that support FAT32.

There's no Nintendo-backed guarantee that a larger one will work, but there are workarounds that make even larger cards such as 64GB and 128GB function just fine.

Note: Nintendo officially only supports memory cards up to 32GB. There are also stores that can provide data transfer services for a small fee. If you're using a microSD Card, you'll also need the SD Card adapter on top of that, which is usually sold with the microSD cards. Alternatively to the reader, a camera with a built-in SD Card reader attached to your computer may also work.

A computer with a built-in SD Card reader or an external SD Card drive.

For New 3DS, check MicroSD Cards Compatible With New Nintendo 3DS.

Target SD Card: one of the Memory Cards Compatible With 3DS, such as a 32GB SD Card.

The New 3DS sports 4GB microSD cards, while the older units use standard size cards. Cards included with systems ranged from 2 to 4GB.

Source SD Card: your old SD Card that contains the game and systems data.

You need the following to copy 3DS/2DS data from one SD Card to another: There is no limit on the times you can transfer data between SD Cards - and if you're computer-savvy, you can even go higher than the recommended 32GB barrier.

Wondering how to upgrade the standard SD/microSD Card that came with your 3DS handheld to a bigger one, such as a 16GB or 32GB? If you're low on space, you can replace the SD Card that came with your 2DS, 3DS, 3DS XL, New 3DS or New 3DS XL with another.

How to format sd card for 3ds