TinyFormat
TinyFormat is a small utility to format Sys/EmuNAND using FS:InitializeCtrFileSystem but without formating your SD card. More info about FS:InitializeCtrFileSystem http://www.3dbrew.org/wiki/System_Settings (System Format) http://www.3dbrew.org/wiki/FS:InitializeCtrFileSystem
WARNING!
Use it at your own risk.
3DS initial setup will delete MSET exploit.
Download: https://github.com/javimadgit/TinyFormat/releases Requires devkitARM and ctrcommon to build. Sound by BristolStories https://www.freesound.org/people/BristolStories/sounds/51710/