The safest and most straightforward way to update your game is through the official Nintendo Support method:
: Resolving specific issues that occurred after the massive content drop in v3.0.0. Super.Mario.Maker.2.v3.0.2.NSP.Update.rar
This update followed the major "World Maker" (v3.0.0) update and focused primarily on: The safest and most straightforward way to update
The file you are referring to, Super.Mario.Maker.2.v3.0.2.NSP.Update.rar , is a compressed archive containing an update for the game Super Mario Maker 2 on the Nintendo Switch. This specific update (v3.0.2) is a minor patch released by Nintendo to address several issues and improve the overall gameplay experience. Official Update Method Super.Mario.Maker.2.v3.0.2.NSP.Update.rar
: Enhancing general system stability for a better user experience.
: To use these files, a console is usually running custom firmware (CFW).