Errfix.3dsx [new] < 100% TRUSTED >

Always have a recent NAND backup via GodMode9. This is your "undo" button if anything goes wrong.

: If you get an error stating the file has a different type than its extension, ensure you haven't incorrectly renamed the file to .3ds or .cci ; it should remain .3dsx unless your specific emulator requires a conversion. Errfix.3dsx

If you are using Luma3DS custom firmware (CFW) , you probably don’t need this. Errfix is primarily for vanilla (non-CFW) consoles using only userland homebrew. Always have a recent NAND backup via GodMode9

H e l l o

Contrary to what the name might imply, but rather a community shorthand. Historically, the term refers to a collection of troubleshooting .3dsx files (executables for the Homebrew Launcher) designed to bypass or repair specific error screens. If you are using Luma3DS custom firmware (CFW)

Errfix.3dsx is a homebrew application used primarily to fix "broken" Mii faces in games like Tomodachi Life and Miitopia when running on emulators.