The much-awaited Nothing OS 4.0 Open Beta, based on Android 16, is officially live for Nothing Phone (3a) and Phone (3a) Pro users. This early access program lets you explore the latest features of Nothing OS before the final version rolls out globally. If you’re a fan of Nothing’s minimal yet bold design, this update takes the experience to the next level.
What’s New in Nothing OS 4.0 Open Beta
Here’s a quick look at the latest additions in Nothing OS 4.0 for the Phone (3a) series.
1. All-New Nothing Icon Design
- Refreshed visual style – lighter, cleaner, and more refined.
- Brings a consistent design language across apps and menus.
- True to Nothing’s identity – minimal, elegant, and modern.
- Expect more refinements in upcoming builds based on user feedback.
2. “Stretch” Camera Preset
In collaboration with photographer Jordan Hemingway, Nothing has introduced a brand-new “Stretch” camera mode.
- Delivers deeper shadows and brighter highlights.
- Produces a cinematic tone straight from the camera app.
- Ideal for artistic and lifestyle photography lovers.
Example: You can now capture professional-grade visuals right from your Nothing Phone (3a) Pro, with enhanced contrast and dynamic color tones.
3. Lock Glimpse – A Smarter Lock Screen
Lock Glimpse brings a new way to experience your lock screen:
- Displays fresh, high-quality wallpapers across nine curated categories.
- Option to refresh or personalize wallpapers anytime.
- Can show timely updates and useful information on your lock screen.
- You can even replace all content with your own photos for a personal touch.
Privacy Built-In: Everything is locally managed and user-controlled. You decide what appears every time you unlock your device.
4. Core System Improvements
While the spotlight is on new design and camera updates, other parts of the OS remain stable and optimized:
- Smooth system performance.
- Improved battery management.
- Minor bug fixes from the previous Nothing OS 4.0 beta.
Note: Devices may heat up or drain power temporarily after the update. This will normalize soon.
How to Join the Nothing OS 4.0 Open Beta
Joining the Nothing OS 4.0 Open Beta is simple if your device runs the latest stable version.
| Device | Required Build | Beta Registration Deadline |
|---|---|---|
| Phone (3a) | Asteroids-V3.2-251013-1406 | November 7, 2025 |
| Phone (3a) Pro | Asteroids-V3.2-251013-1406 | November 7, 2025 |
Steps to Install the Beta:
- Download the Beta APK from the official Nothing site.
- Open the file from your Downloads folder to install.
- Go to Settings > System > Nothing Beta Hub.
- Tap “Join Beta” to register.
- After successful signup, select “Go to Update”.
- If redirection fails, manually visit Settings > System > System updates and check for updates.
Tip: Backup all data including photos, contacts, and call logs before updating.
Why Try the Open Beta?
The Nothing OS 4.0 Open Beta is not just about early access—it’s about shaping the future of Nothing’s software.
- Get hands-on with Android 16 before its stable rollout.
- Help Nothing refine its user experience through feedback.
- Be part of the Nothing community that values clean design and innovation.
Conclusion
The Nothing OS 4.0 Open Beta for Phone (3a) and Phone (3a) Pro delivers a refreshing new design, improved camera experience, and personalized lock screen features. Powered by Android 16, this update brings both beauty and intelligence to Nothing’s minimalist philosophy.
If you own a Phone (3a) or (3a) Pro, this is the perfect time to try the Open Beta and share your feedback before the stable release.
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FAQs About Nothing OS 4.0 Open Beta
1. Is the Nothing OS 4.0 Open Beta safe to install?
Yes, it’s safe but being a beta version, minor bugs or temporary performance issues may occur.
2. How long will the beta testing phase last?
The beta program closes on November 7, 2025. Stable rollout is expected soon after.
3. Can I revert to the previous stable version?
Yes, but you’ll need to back up your data and reinstall the previous firmware manually.
4. What Android version powers Nothing OS 4.0?
It runs on Android 16, offering enhanced privacy, UI, and system-level performance upgrades.