Overview
- Nintendo began rolling out version 21.0.1 on November 24, 2025, for both Switch and Switch 2.
- The patch fixes repeated local system‑transfer failures that triggered Error Codes 2011-0301 and 2168-0002 when moving data from a Switch to a Switch 2.
- On Switch 2, it resolves cases where wireless controllers or Bluetooth audio devices would not reconnect after Sleep Mode or turning off Airplane Mode.
- The release includes general system stability improvements with no new user‑facing features.
- It remains unconfirmed whether game-specific issues reported after 21.0.0, including Pokémon Brilliant Diamond/Shining Pearl and Crypt of the NecroDancer on Switch 2, are resolved.