Nintendo employs strict telemetry to monitor modified systems. If you install a modified, corrupted, or improperly dumped NSP update onto a Nintendo Switch console, you risk a permanent hardware ban. A banned console loses all access to the Nintendo eShop, online multiplayer services, and official system updates. 3. Data Corruption
Users running custom firmware (CFW) on physical Nintendo Switch hardware use tools like Tinfoil or DBI to install updates offline. Downloading the compressed .rar archive, extracting the .nsp update file, and installing it directly to the console allows homebrew users to bypass the official Nintendo eShop. How to Handle NSP Update Archives pokemon home nspupdate 321rar top