The process to format an SD card to FAT32 is different for Windows, Linux and macOS.
ChromeOS is not an option and formatting an SD card with its built-in formatter may result in it becoming unusable by consoles.
Choose your operating system
Windows
Linux
MacOptionally, if you have a 3DS with custom firmware, you can instead use GodMode9:
If you have an unpatched or modchipped Switch, you can instead use TegraExplorer:
- https://nh-server.github.io/switch-guide/user_guide/emummc/partitioning_sd/
- Note: If you do not wish to create an emuNAND, e.g. for a sysCFW setup or for other consoles, select Only Fat32 instead of
Fat32 + EmuMMC
- Note: If you do not wish to create an emuNAND, e.g. for a sysCFW setup or for other consoles, select Only Fat32 instead of
If you already understand how to use the tools in the above guides, here are direct links to their pages:
- Windows: SD Memory Card Formatter + guiformat
- Mac: Disk Utility
- Linux: GParted + dosfstools