1. Turn on 3DS
2. Run emuNAND9 (if you don't have it, get it
here)
3. Unmount SD card with select, insert new card
4. Format your SD card for emuNAND
5. Turn off 3DS
6. Put old SD card in computer
7. Backup your emuNAND partition (using
this)
8. Put new card in computer
2. Restore it to the new card (using
this)
3. Copy all files to the new card
4. Play some games
NOTE: If your SD card is >32GB, use
this to format it to FAT32 before anything else
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i made a backup how can i restore it
Click "Inject NAND to emuNAND" and browse to emuNAND.bin, wherever you put it