After a series of rumors and delays, Nothing has finally released the open beta of Nothing OS 4.0 for the Nothing Phone (3), Phone (2), and Phone (2a). The company has officially confirmed that the new Beta Program is based on Android 16, making today’s announcement the clear confirmation users were waiting for.
In terms of eligibility, the Open Beta is currently available for the Nothing Phone (3), Phone (2), Phone (2a), and Phone (2a) Plus. However, support for the Phone (3a) and (3a) Pro has been delayed, with availability highly expected in the second week of October 2025.
To participate in the Nothing OS 4.0 Open Beta Program, you must first verify that your device is eligible. Currently, only selected models are supported. If your phone is eligible, make sure it is updated to the latest stable release first. Once that’s done, you can proceed with the enrollment steps—
How to Install Nothing OS 4.0 Open Beta
- Download the dedicated app – Install the Beta Update Hub app provided by Nothing. You can download it from the official Nothing website. This app unlocks the Beta option in your phone’s settings.
- Heads to Settings—Go to Settings > System > Nothing Beta Hub.
- Join the Beta Program – Tap Join Beta and complete the signup process.
- Check for Updates – After signing up, tap Go to Update. This will redirect you to the system update page, where the beta update should appear.
- Manual Check (if needed) – If the update doesn’t appear automatically, go to Settings > System > System Updates and check manually.
After completing this process, you will be able to install the latest Nothing OS 4.0 Open Beta on your eligible Nothing Phone. If you wish to revert to the stable version, you can follow the simple steps provided by Nothing. You just need to download the packages according to your device, and then you can fall back to the stable update. Download the package from here (official link by Nothing).
Nothing OS 4.0 Open Beta Known Features & Improvements
The company has pushed several new features along with improvements. One of the highlights is Dark Mode. According to sources, this update introduces an Extra Dark Mode, which makes Dark Mode even deeper.
The Always-On Display (AOD) has also been enhanced for better visibility. Previously, many users reported unstable brightness issues. The company addressed these concerns and delivered improvements in brightness control.
