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How to Install Nothing OS 4.0 on Phone 3: Step-by-Step Guide

Learn how to install Nothing OS 4.0 on Phone 3. Step-by-step guide for Android 16 upgrade, Glyph features, Dark Mode, and smoother app animations.

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How to Install Nothing OS 4.0 on Phone 3: Step-by-Step Guide
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24 Nov 2025 6:40 PM IST

Nothing has officially begun the distribution of its recently developed OS upgrade, Nothing OS 4.0, for the users of the Nothing Phone 3. The update, which is built upon Android 16, has completed its beta testing and is now being released as a stable version that allows Phone 3 users to get a redesigned interface and new features early.

The firm has revealed that the update would be rolled out in phases to the older and other models including Phone 2a, 3a, and CMF variants over the next months. The rollout discloses in detail the changes that were hinted at during the beta phase such as UI changes and improvement in the system that would allow smoother interactions.

Nothing OS 4.0 brings in a bunch of features that are aimed at making the Phone 3 experience much more engaging and productive. The most important aspect of the update is the improved Glyph system which makes use of the rear display of the device for notifications, tracking progress and cues based on apps.

Live Updates now work hand in hand with the Glyph interface as it shows the up-to-minute information of the ride, delivery or timer on the screen without the need to open the app. On top of that, the apps that are supported by Android 16 automatically receive the compatibility of the new Glyph Progress feature, hence, the utility of this feature across the third-party applications gets wider.

The update furthermore brings along visual and functional enhancements that are extended throughout the system:

Extra Dark Mode: The blacks are deeper, the contrast is better, and the overall power consumption is made less. The mode is applied to notifications, quick settings, app drawer, and native apps such as Launcher and Essential Space. Wider app integration is anticipated in future releases.

Haptic Feedback at Volume Limits: There are very slight vibrations occurring now when adjusting volume at the maximum or minimum points that serve as a physical response without the need for visual confirmation.

App Animations: The transitions of the app opening and closing now seem less abrupt. The home screen backgrounds are being scaled smoothly to give an illusion of depth.

Enhanced Notifications: The interface movements are giving a better responsiveness and fluidity, which results in a more tactile interaction.

Widget Options: The new 1×1 and 2×1 widget layouts for weather, pedometer, and screen time are an addition that gives more control to the users over the arrangement of their home screen.

Pop-up View: The users can now use two floating apps at the same time and change them by using simple gestures.

Hidden Icons: Any application can now be concealed from the app drawer and yet be easy to access, which results in tidier layouts.

This update demonstrates Nothing's commitment to increasing the practical use of the Glyph, while at the same time improving the responsiveness of the interface and the visual consistency.

Installing of Nothing OS 4.0 on Phone 3

The users who want to upgrade can follow these instructions to get the update installed:

  1. Go to device Settings.
  2. Go to System.
  3. Select Check for Updates.
  4. Download and install Nothing OS 4.0 update that is available.
  5. Restart the phone to complete the installation.

Nothing has announced that Phone 2a, 3a, and CMF models will soon get the Android 16 update, thus extending the access of the new interface and features across the ecosystem.

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