Nintendo Switch 20.1.0 Update Adds NSO Sound, Fixes

Nintendo has rolled out another system update for the Switch just before the highly anticipated launch of the Switch 2.

As detailed in the concise patch notes, Nintendo Switch System Update Ver. 20.1.0 introduces minor adjustments, including the ever-present "general system stability" improvements.

The update also refreshes the appearance of parental control settings and modifies the startup sound when launching Nintendo Switch Online from the Home Menu.

The new audio tone boasts a more energetic vibe—possibly offering a preview of what Switch 2 users will experience when accessing NSO. X/Twitter user @Nexusvoyager demonstrated the audio changes in their post below:

Before and after the update pic.twitter.com/HC71TFztS9

— The Ashen Nexus. (@Nexusvoyager) May 28, 2025

@Nexusvoyager noted additional navigation sounds and UI refinements in the NSO app, likely aligning it with Switch 2's upcoming interface. This update effectively synchronizes the Nintendo Switch Online experience across both consoles.

After a relaunch the app completely changed its ui pic.twitter.com/h07hoSOOOt

— The Ashen Nexus. (@Nexusvoyager) May 28, 2025

Prominent Switch analyst @OatmealDome discovered that version 20.1.0 rebranded the "Basic White" and "Basic Black" themes as "Basic Light" and "Basic Dark," while adding Basic Dark theme compatibility to the NSO app.

[Nintendo Switch Firmware Update]

Some theme-related changes were made in 20.1.0.

• The "Basic White" and "Basic Black" themes were renamed to "Basic Light" and "Basic Dark".
• The Nintendo Switch Online applet now supports the Basic Dark theme. pic.twitter.com/BoeR4YbBD4

— OatmealDome (@OatmealDome) May 28, 2025

Nintendo Online: Switch Updated
byu/Justcoldk inNintendoSwitch2

Important note: Players transferring data locally between Switch and Switch 2 will require this latest system version.

These updates precede the Switch 2's June 5 launch. Recently, IGN covered an early console acquisition attempt—though Nintendo swiftly disabled the unit pending launch-day updates and issued copyright strikes.

Our previous coverage includes Mario Kart World gameplay on Switch 2, alongside updates about free performance boosts for Switch titles, VRR support specifics, and GameChat verification requirements. Despite rapid pre-order sellouts, Nintendo of America's Doug Bowser confirms ample holiday season stock.

Nintendo Switch System Update Ver. 20.1.0 (Released May 27, 2025)

Key improvements include:
• Redesigned Parental Control interface
• Updated Nintendo Switch Online startup audio
• System stability enhancements for smoother performance