Nothing OS 4.0 | Phone (3a) Series Open Beta

Rob ⚡️ · 2025-10-24T09:05:00+00:00

![](https://cdn.nothing.community/2025-10-23/1761222596-454812-os4-beta-phone3a-16x9.png "banner") The Open Beta for Nothing OS 4.0, powered by Android 16, is now available for the Phone (3a) Series. This update lets you experience the latest version of Nothing OS ahead of the official release and share your feedback to help us refine the final build. #### **What’s New** **📱All-new Nothing icon design** A refreshed visual language that’s lighter, more refined, and uniquely Nothing. Expect further improvements based on your feedback. ![](https://cdn.nothing.community/2025-10-24/1761296699-291664-image.png "banner") **📸 “Stretch” Camera preset** Developed in collaboration with photographer *Jordan Hemingway*, this preset enhances photos with deeper shadows and extended highlights for a distinctive, cinematic look straight from the Camera app. 🖼️ Lock Glimpse Lock Glimpse brings fresh, high-quality wallpapers to your lock screen, curated to your taste across nine categories. It can also surface timely updates and useful content designed to enhance your experience. The feature is turned off by default. You can enable it anytime in Settings, refresh wallpapers, adjust your preferences, or choose to access it only by swiping left. Everything stays in your control. Built with privacy in mind, Lock Glimpse will soon let you display your own photos on the lock screen, replacing all other content and making every unlock uniquely yours. ![](https://cdn.nothing.community/2025-10-24/1761295380-318183-frame-2147227094-2.png "banner") ⚡All other features remain the same as in the previously released [Nothing OS 4.0 Beta](https://nothing.community/d/43141-nothing-os-40-open-beta). #### Notes Please back up your data (photos, call logs, contacts, etc.) before upgrading. The device may temporarily heat up and consume more power after updating. This will return to normal shortly after installation. **How to join** 1. Make sure your device is on the latest stable build, go to About phone > banner. * *Phone (3a): Asteroids-V3.2-251013-1406* * Phone (3a) Pro: Asteroids-V3.2-251013-1406 * Open Beta OTA terminals will be **closed** on November 7, meaning you will not be able to join the Beta after this date. 2. Download the [Beta APK ](https://d2j3l8bo7dc01w.cloudfront.net/NothingOfflineOtaUpdate-_master_signed_I2b0e9336c25c26bf7fc89ff868f05a536a98ba5d.apk?Expires=2020213529&Signature=q7z7pEUcZWPO44JjIvPkwJiORQukBHXNzkrfPCR7aBe1ZY3sJ4tYZiyeT7oN8PqUVoa4dHkDIfYlxuvphYRQZMtaqm34plbC300F25Gl0E7e~pGAwFGl6IOTVQLpXsXYo1KW8FMsO1ZzRRZt3wUUDQgrdhLj3v-prsoZmXBocn86mBx3-6hj0qLRN0NTf~V5RO3sz1R-SlnfTXQJ~QZ0MszEc8mGOM6QWIypUV4H7yzYhbGSJZOgnUHzrl0~tebFMBd95kInxtNk2dx7eZ8TwcW6ksj260VldXMsyMCwkbEni~laoZkEszsFZpO2Rr8EevMrx4fgObR8~oocjZqjnQ__&Key-Pair-Id=K1EOR8HYJKSWP1) and install from your downloads folder. 3. Go to Settings > System > Nothing Beta Hub. 4. Tap "Join Beta" to sign up. After successful registration, Tap "Go to Update" to upgrade. **Note:** Tap "Go to Update". If the redirection fails, please manually go to Settings > System > System updates and check for updates. As this is a Beta, it isn’t the final version. We encourage you to share your feedback as we continue to refine the experience. Your feedback can be shared via Settings > System > Feedback, or join the discussion on[ nothing.community](https://nothing.community). > ⚠️ 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. ### Rollback to Stable 1. If you need to return to Nothing OS 3.2: 2. Download the rollback package [Phone (3a)](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251021_153926_20251013_140655.zip?Expires=2020301093&Signature=eQRpvjndBp9OAvanVEuR8yUlM-4wLe9Ce7HDuvGOAnDP0HHc8Tjg2oaevNBY-gqxMXgDTCIhH--HCl9AxxSFEIW5PsDpugN9Yg7TZL-e4x7Uj5n~uDudHuA1Yup4~kTflSRIG5-MqpwLd0gd6SUt5kjzI1tknuU0Hp50DqVXl4GVJx44f-wz5~pkJMPfgIaKebkq29p0ocozH9rWJ-FKZvS4yQX83GBKBm23wvRc2bDv60bxu1a4i08Y37y61RPaBvjvtm1bsmEAEhYNNchxPWnqC1qhuhEWp1~-aNaxPnuuCxdIPlzLFNiKGGzEc8vs3ostYqKGXbvI3abRhFOTsw__&Key-Pair-Id=K1EOR8HYJKSWP1) [Phone (3a) Pro](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251021_153926_20251013_140655.zip?Expires=2020301093&Signature=eQRpvjndBp9OAvanVEuR8yUlM-4wLe9Ce7HDuvGOAnDP0HHc8Tjg2oaevNBY-gqxMXgDTCIhH--HCl9AxxSFEIW5PsDpugN9Yg7TZL-e4x7Uj5n~uDudHuA1Yup4~kTflSRIG5-MqpwLd0gd6SUt5kjzI1tknuU0Hp50DqVXl4GVJx44f-wz5~pkJMPfgIaKebkq29p0ocozH9rWJ-FKZvS4yQX83GBKBm23wvRc2bDv60bxu1a4i08Y37y61RPaBvjvtm1bsmEAEhYNNchxPWnqC1qhuhEWp1~-aNaxPnuuCxdIPlzLFNiKGGzEc8vs3ostYqKGXbvI3abRhFOTsw__&Key-Pair-Id=K1EOR8HYJKSWP1) 3. Go to Settings > System > Nothing Beta Hub. 4. Tap Import file and select the package. 5. 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. ‎ ### [UPDATE] - 31 OCT - OBT2 **Nothing OS 4.0 Open Beta 2 is now available for the Phone (3a) Series.** This update includes general improvements and bug fixes to enhance overall performance and stability. Users already on Open Beta 1 can detect and install the update directly from their phones. The Beta APK is not required. **Rollback to Stable:** **If you need to return to Nothing OS 3.2:** **From OBT 1 (Asteroids-B4.0-251021-1539), download the relevant rollback package:** **[Phone (3a)](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251021_153926_20251013_140655.zip?Expires=2020301093&Signature=eQRpvjndBp9OAvanVEuR8yUlM-4wLe9Ce7HDuvGOAnDP0HHc8Tjg2oaevNBY-gqxMXgDTCIhH--HCl9AxxSFEIW5PsDpugN9Yg7TZL-e4x7Uj5n~uDudHuA1Yup4~kTflSRIG5-MqpwLd0gd6SUt5kjzI1tknuU0Hp50DqVXl4GVJx44f-wz5~pkJMPfgIaKebkq29p0ocozH9rWJ-FKZvS4yQX83GBKBm23wvRc2bDv60bxu1a4i08Y37y61RPaBvjvtm1bsmEAEhYNNchxPWnqC1qhuhEWp1~-aNaxPnuuCxdIPlzLFNiKGGzEc8vs3ostYqKGXbvI3abRhFOTsw__&Key-Pair-Id=K1EOR8HYJKSWP1)** **[Phone (3a) Pro](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251021_153926_20251013_140655.zip?Expires=2020301093&Signature=eQRpvjndBp9OAvanVEuR8yUlM-4wLe9Ce7HDuvGOAnDP0HHc8Tjg2oaevNBY-gqxMXgDTCIhH--HCl9AxxSFEIW5PsDpugN9Yg7TZL-e4x7Uj5n~uDudHuA1Yup4~kTflSRIG5-MqpwLd0gd6SUt5kjzI1tknuU0Hp50DqVXl4GVJx44f-wz5~pkJMPfgIaKebkq29p0ocozH9rWJ-FKZvS4yQX83GBKBm23wvRc2bDv60bxu1a4i08Y37y61RPaBvjvtm1bsmEAEhYNNchxPWnqC1qhuhEWp1~-aNaxPnuuCxdIPlzLFNiKGGzEc8vs3ostYqKGXbvI3abRhFOTsw__&Key-Pair-Id=K1EOR8HYJKSWP1)** **If you’re on OBT 2 (Asteroids-B4.0-251027-1838), download the rollback package** **[Phone (3a)](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251027_183806_20251013_140655.zip?Expires=2020920845&Signature=jjwq883k11ZMN0ng-tkJf0nyy7PPFa7LNENnHDUa8S42qtRyD9IQbZ2ZFJF2UtF7raMO-Yy5RSyvOETRasAOHfFD9kQKl1X57gFO500DYnePvmEN5XBC7xUf-nuOrerTZsOkbzPgBs8QpjzOfY6buslicpdPm-k92IlWATO9lRlw6ajLXUnwuNpCdAGxRE~flNDJ6zFZjEpnk6~2vPwveAqVExwJ6o485WFkKqkVa0NlWzWHMBVaPvwknB4gcHFrEuTLBbFdPcZZAfVoyuzzBIThB9WckXFcWhtHdCwWVeoM0iu2j24w5Dj1FIeIyifppv5OMFUYluZ-Zi3o8EyPaA__&Key-Pair-Id=K1EOR8HYJKSWP1)** [Phone (3a) Pro ](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20251027_183806_20251013_140655.zip?Expires=2020920845&Signature=jjwq883k11ZMN0ng-tkJf0nyy7PPFa7LNENnHDUa8S42qtRyD9IQbZ2ZFJF2UtF7raMO-Yy5RSyvOETRasAOHfFD9kQKl1X57gFO500DYnePvmEN5XBC7xUf-nuOrerTZsOkbzPgBs8QpjzOfY6buslicpdPm-k92IlWATO9lRlw6ajLXUnwuNpCdAGxRE~flNDJ6zFZjEpnk6~2vPwveAqVExwJ6o485WFkKqkVa0NlWzWHMBVaPvwknB4gcHFrEuTLBbFdPcZZAfVoyuzzBIThB9WckXFcWhtHdCwWVeoM0iu2j24w5Dj1FIeIyifppv5OMFUYluZ-Zi3o8EyPaA__&Key-Pair-Id=K1EOR8HYJKSWP1) 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.

imhasib

Anonymous931 me also don’t like the new gallery and camera icons. Both looks too plain and not easy to recognize

MARVANKP

Settings search options clicked. But automatically back to settings page. No searching option used on NOTHING PHONE 3A.

Solve the bug

RitikaSingh_VSQs92VVvL

And what about CMF Nothing Phone 2 pro users. When they will get update of Nothing OS 4.0 beta update? Or they will never get update of.

MariaMihya

Rob ⚡️

It’s not working for me! I don’t know what’s wrong

AlimAli_vGmQtkd2tb

The setting suggestion bug got fixed after a factory reset. For me its working fine now. Most of the small bugs got fixed after the reset

Srivatsan-N

Rob ⚡️ Looks quite downgraded to me the new redesigned icons. And a lock magazine (indirectly an ad) seriously??? Is this what they promised as new features that was worth waiting. I thought they’re going to give some new features for Glyph lighting or essential key customisation.

ArnoldMelvinXavier

Rob ⚡️

I found a little glitch on the Google Play Store, look at the gap

SabirMustafa

I was eagerly waiting for OS 4.0. Still happy with BETA 🙂.

Quick points on my Nothing 3(a) pro:

Feeling loved with Lock Glimpse
The camera yet to be tested
The icons are more classic
The AI yet to be tested
No performance impact

Overall, Its a nice update. Looking forward to more……

teepeedee

I have installed the beta today and I have to say I’m really really underwhelmed by it. I struggle to see any real tangible, value-adding difference. I understand that Nothing has their brand, their design language etc but the android 16 redesign that Google implemented across the pixel range is excellent, down to the subtle changes in how things interact with other parts of the system. There’s none of that flowing through in the Nothing update at a glance. Really disappointing.

My 3(a) is going in the drawer in favour of my pixel 8.

Sickchild72

Have fun (3a) series users.

Now we wait for (3) update.

PrithwirajBordoloi

After installing the beta version on my Nothing Phone 3a pro the phone keeps on showing setting suggestions not working!!!

Daniel

PrithwirajBordoloi Check the best answer here https://nothing.community/d/45052-settings-suggestions-keep-stopping-on-search-in-settings/

PrithwirajBordoloi

Daniel Will there be an update or a permanent solution for this?

I was not able to install or find google play protect again!!!

AyushSingh_2k7OblOmoJ

Loved the new beta, it’s great.

Anonymous903

AyushSingh_2k7OblOmoJ Is the clock color transparent/adpating to the wallpaper now? Great, I’ve been needing this for long

Anonymous931 The common reason I’ve seen here and on reddit is that by allowing nothing to implement tiny bit of bloat that chips away a little bit at their clean system, they’ll go full capitalist mode and make the entire software bad.

But like, if it takes one click to opt out, then why does it matter

aliaspiyush

Rob ⚡️

The Search in Settings Crashes (fully unusable)

BradMoss

aliaspiyush hey, same issue, reported as big..please do the same

SiddharthTiwari_YSYxr97fwb

I am not able to join it from Nothing Beta hub. I am getting this error

Please get this fixed

j_Downgradist_

Please add a feature in the photo album app that allows me to copy the editing style after adjusting a photo. I want to be able to paste the copied style onto other photos as well. It’s too tiring to edit each photo one by one every time.😅

robbins0172

shahriaravi how?

cherrypluck

The rollback to NOS 3.2 isn’t working for me on the (3a) Pro.

I’ve tried troubleshooting by making the Documents folder as mentioned in the Internal Storage but still no luck, any help?

FabioR 🇩🇪

cherrypluck You also need to place the Update File in the Documents Folder

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