A: Technically yes, but connecting to Nintendo servers with a modified console risks an immediate, irreversible ban. Your stored Pokémon will be inaccessible.
A: It misleadingly points to version 3.2.1, which did exist officially. Scammers use real version numbers to appear legitimate. pokemon home nspupdate 321rar
The official update (which some mislabel as "321") includes: A: Technically yes, but connecting to Nintendo servers