Nothing OS 4.0 Open Beta [Update: OS4 Beta downloads have now ended for all devices. Enrolled testers are encouraged to continue sharing feedback!] We’re excited to bring you the Nothing OS 4.0 Open Beta. This is your chance to try out the newest features from Nothing OS alongside Android 16 before the official release. Here’s what you can expect with Nothing OS 4.0 Beta: ‎ 📱 Phone (3) Phone (3) introduces the AI usage dashboard in Essential Space, giving you greater transparency over large model activity. This update also includes general improvements and bug fixes, with better lock screen and AOD performance, optimised brightness behaviour, enhanced camera stability, improved Bluetooth stability and compatibility, stronger Wi-Fi connectivity and network stability, and overall system stability enhancements. ‎ 📱 Phone (2), (2a) & (2a) Plus These devices now include the “Stretch” Camera preset, created with photographer Jordan Hemingway, which enhances photos with rich shadows and extended highlights for a more distinctive look directly from the Camera app. In addition, this update brings system-level app optimisation to improve startup speed, available under Settings > Apps > App optimisation. ‎ Other new features 🟢 Pop-up View with two floating icons for faster switching ⏱️ Two new lock screen clock faces ↔️ 2×2 Quick Settings tile support 🌑 Extra Dark Mode (Settings > Display > Dark theme > Extra dark mode) ‎- ✨ Essential Apps & Playground Essential Apps are now live. You can create widgets with AI and share them in Playground alongside Camera Presets and EQ Profiles. With Nothing OS 4.0, Phone (3) supports up to 6 widgets and other models up to 2, a temporary limit set to keep performance smooth. Learn more in our Essential post. - Notes Please back up your data (photos, call logs, contacts, etc.) before installing any of our Betas. Your device may temporarily heat up and consume more power after updating. This will return to normal shortly after installation. How to join: Make sure your device is on the latest stable build, go to About phone > banner. You need to have the following versions installed to take part: Phone (3): Metroid-V3.5-250911-2112 Phone (3a): Asteroids-V3.2-251013-1406 Phone (3a) Pro: Asteroids-V3.2-251013-1406 Phone (2): Pong-V3.2-250917-1451 Phone (2a): Pacman-V3.2-250904-1648 Phone (2a) Plus: PacmanPro-V3.2-250904-1704 ⚠️ Disclaimer: Our Open Beta OTA servers have now closed for Phone (2), (2a), (2a)+ and (3). (3a) and (3a) Pro downloads are still available here. Then: Download our Beta Updates Hub .apk and install it from your Downloads folder. Go to Settings > System > Nothing Beta Hub. Tap "Join Beta" to sign up. After successful registration, Tap "Go to Update" to upgrade. Tip: If tapping "Go to Update" fails, check manually by heading to Settings > System > System updates and check for updates. Once installed: We encourage you to share your feedback to help us continue to refine the experience. Your feedback can be shared via Settings > System > Feedback, or join the discussion here on nothing.community via our dedicated threads. ⚠️ Disclaimer: This is Beta software and may interfere with your data. It could also require a factory reset. Please back up your data before updating. - Rolling back to Stable If you need to return to Nothing OS 3.5 for any reason, follow these steps: Download the relevant rollback package: Phone (3) Phone (3a) Phone (3a) Pro Phone (2) Phone (2a) Phone (2a) Plus Go to Settings > System > Nothing Beta Hub Tap Import file and select the package. Follow the on-screen instructions. Tip: If you see an error, create a folder called Documents in Internal Storage and try again. ⚠️ Disclaimer: Rolling back will factory reset your device and erase all data due to Google’s rollback rules. Please back up everything before proceeding. Nothing cannot accept responsibility for issues caused during rollback. For help, contact customer support. Other Open Beta Release Dates The Open Beta for Phone (3a) Series has now arrived, read more about it in this dedicated post.

Too many users pressed Join at the same time 😅 The heavy traffic crashed our server. Please try again, and make sure you’re joining with the same build number mentioned in the post. Thanks!

Nothing OS 4.0 | Open Beta

Heldenweichei_

Rob ⚡️ ist says this when i try to join from my NP 3

suhaspanadare18

Extra dark mode not working on notification panel in phone 2a

AnujJaiswal_pxQiWJvapk

Did someone lost the data while updating? Or it updated without loosing the data?

Kurangudesam

KuvamAulakh Looks like they’ve overlooked the actual release sequence. Based on the latest roadmap, it should follow the order: Phone (3), Phone (3a Pro), Phone (3a), and then the CMF lineup (P1, P2, CMF devices)

Tobi_Koz_nek

Jiří Mrázek same

muhammednabeel

Jiří Mrázek I got the same issue but I got it after retrying

Nicouschulas

luki_fi

Currently online for nothing phones (not 1 and 3a and 3a pro (these in October))

Tobi_Koz_nek

Zero it’ also not working on my NP2a, I tried it like 10 times, should i continue?

AdityaDas_gDrMOiCfBD

Rob ⚡️ not available in India?

GothandaramanR

I didn’t receive the updat

GH9

When I disable my WLAN and go over my mobile access then the Beta OTA Update is running for my NP3 🙂. Try it!!!!! You can switch back to your Home WLAN when the Nothing 4.0 is in downloading modus.

AarushPatel

Issue on the latest build Ind 2a

hutchinsonadam15

Rob ⚡️ Why no phone 3a or 3a pro!?

LuciferRoyal

GothandaramanR same…3 hours passed still no update lol on my NP2a

AMRITRAJ_cJCDj6oefd

Rob ⚡️ I am Nothing 2 user and have the required System update but not able join the Beta Version. Attached snip for reference

JesusRuiz

CMF1_hacker same on Nothing 2a

Anonymous1002

@Mr Steel 🦾 where is open beta for CMF Phone 1? Android 16 + Nothing OS 4.0?

B_la

Rob ⚡️ nothing phone 3a?

AndrewMathewGeorge

Rob ⚡️ Why not 3a series it is also part of the latest release. How come you have it for 2a but not 3a I need answers nothing

JuliusMensching

@“Rob ⚡️”#p2172

My phone says thamy model is not in the beta, but I have a nothing phone 2 with the right version in eea

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