When installing legitimate official updates, Switch users should follow safe, supported steps:
: NSP stands for Nintendo Submission Package. It's a file format used by Nintendo for distributing and installing games and updates on the Switch. If you're looking to manually update a game using NSP files, you'll typically need to use a custom tool or software on your computer, and this process can vary depending on the tool you're using. my hero ones justice 2 switch nsp update dl updated