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Nintendo Switch 2 Update 20.4.0 arrives with only backend fixes

Small mandatory firmware update from Nintendo released September 1 with security and stability fixes

Mihaela Kicevski by Mihaela Kicevski
September 2, 2025
in News, Switch
0

Today Nintendo released system update 20.4.0 for the Nintendo Switch 2, a small mandatory firmware refresh required for continued online use. It arrived on September 1 (September 2 outside the US) and mostly includes security and backend fixes rather than new features.

Most consoles will download the latest system update automatically when connected to the internet. The installed menu version can be checked in System Settings and an update can be started manually if necessary. The download should be small in the majority of cases, and the console may need to restart when the update finishes. The update is required to keep online services active.

The release notes describe the patch as primarily security and backend work and do not advertise consumer-facing features. Full details are available on the official Nintendo support page.

Ver. 20.4.0 (Released 1 September, 2025)

  • General system stability improvements to enhance the user’s experience.

Discuss this update in the comments.

Join discussion about this update on X and Bluesky to share quick thoughts.

Tags: nintendoNintendo Switch 2Switch 2
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Mihaela Kicevski

Mihaela Kicevski

I am Angel's and Margarita's daughter, and I am happy to be starting this work together with my parents! I can't wait to see where this takes us!

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