Nothing OS 4.0 | Open Beta

Rob ⚡️ · 2025-09-30T12:00:00+00:00

### Nothing OS 4.0 Open Beta ![](https://cdn.nothing.community/2025-09-30/1759227558-662750-os4-beta-phone3-16x9-large.jpg "banner") [**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](https://nothing.community/d/37673), 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.](https://nothing.community/d/43142) ### - ### **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](https://nothing.community/d/45141-nothing-os-40-phone-3a-series-open-beta "(3a) Series downloads"). **Then:** 1. Download our [Beta Updates Hub .apk ](https://d2j3l8bo7dc01w.cloudfront.net/NothingOfflineOtaUpdate_signed_I8b71f630b74e3dcb939d33d99815d63507c48298.apk?Expires=2017212322&Signature=0ZSGSzoDMAAgBSkxkDIBiLIFsnxsod0jHYr2IH3wYUhANZmSNBjlghmxgrFikEJSrigIqd708z0JxSWy28~~2nS3qoNnXGChY90xZt0c0htScM4DPfPW~vDk2nZiO8IZfOneeXODuf5MQ3sjytJD45oF5yDPaJ0MKG24j4wBfs~V5GA4kf-GFRotIuUjkzA1GaCwA4NyUs-1L5jx~ZTlBJLCaxAMWDRYTN9-Ve9gPVrm-9bmLf1~ouM3bQM3zZHMIXO0Fu74S4XnxhZH4iXNWPVfHHBQe3cM~Iq0zbVRaSWPZpPFZaY-rbA~YDEi524CKxzC1mvyFmpjyMlTQHVX3w__&Key-Pair-Id=K1EOR8HYJKSWP1) and install it from your **Downloads** folder. 2. Go to ***Settings > System > Nothing Beta Hub***. 3. 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[ ](https://nothing.community)nothing.community via our [dedicated threads](https://nothing.community/d/43340-nothing-os-40-open-beta-feedback "Feedback 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: 1. Download the relevant rollback package: [Phone (3)](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20250917_121804_20250911_211219.zip?Expires=2017398416&Signature=cPqO57520XONBQMau-1d9tL1d~4mU1Iy2ulJ7FmmKXkLSLDaJ1mJzMo~SJrou677VRNMVf8Twttzp~d21x-9RHJWbCwwjJ1mqlJ154qAzZVpT8HNVxTIJ5nCDtNj0ED3x02Tcu01hWPIjS4xl9C4Ay2U~qzSCuXTA4Hma5UEXWblyVRftEczDZsxlACrU4k5ksaI6lAMBvDkTk-n7ahHD00gF1Rt7s18xi0HWamAim0AQXQQeXh6ocqtPXtWME~yw8hoWTcu3YeXV8aX0fTRMCla3-ET9ClUuLiWUqLf0Qdps4YCwxsepOwVsAU5zgm4iJiFyc3bOze1-LOZde1pHA__&Key-Pair-Id=K1EOR8HYJKSWP1) [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 "(3a) rollback") [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 "(3a) Pro Rollback") [Phone (2)](https://d2j3l8bo7dc01w.cloudfront.net/ota_diff_20250928_200323_20250917_145149.zip?Expires=2018335440&Signature=GZuT4DGrgRMUM60NovPwPmd5gssakJHj538gn~kOE6EsMTi1b~htyfa4g5YwPYFxxhkALlf3pogaosONT2Fm5dHvzt1wHkENMxsf5bc7Xdl1NF3zUFgBNFnIudS4-iHhmmtrehIx33~TQyjz1zQO1ztyrW6WGvgbpNmIIbu61ie14BhMO3g9W9GLbns4rmvsZgiD9x8HBtBtR~sBdupTs3W38uTMRlSq7TCX3V6h8bpyB~TWAAr89R8ndrPilxYMalmX6UTn084RH9xZC7NjYtRtgabsQx0X85Pi2UrXkPvhdBf5~Nwu5JVoiC2tCoMUwcHfoTfX~46b~aKpif1wuQ__&Key-Pair-Id=K1EOR8HYJKSWP1 "Phone (2) Beta") [Phone (2a)](https://d2j3l8bo7dc01w.cloudfront.net/ota_full_downgrade_20250904_164803.zip?Expires=2017994852&Signature=LOcKk6t56-FCKmQQEu0VHnuxQDB423J7cwUqTtepzhteamm0QkzjLW1S7rEUIb1quaRk09p6HC7awjvhWrr7j8g4OgoB77aBXRfHnf9zvyHHTSLQfPyRNrFAhUNt8YEt4aFwYpUGMrls-73RJH89ZqHF5Zf35TyaXd076iQ2K0-pbwUcWMX5InZbbMeMnNcxfxZifVVATF-nZdIxaM4P8uZJQEd8sPvHDUXYoQM6RNAvHiXkrHxi7EeUa0eqakpSbxqg3C6U2qh6neSRLF3f-WLHoqhpSwyQUeHS1uz6ND869-db95p-Zj8nILEmMfbkjLiS~et22-g17KI14AKCdg__&Key-Pair-Id=K1EOR8HYJKSWP1 "Phone (2a) Beta") [Phone (2a) Plus](https://d2j3l8bo7dc01w.cloudfront.net/ota_full_downgrade_20250904_170416.zip?Expires=2017994875&Signature=LILS4QXiVgBAbS5Och1r4sGviY-GHAd6fgdlbT8DU7dhDomspEA1xZmYPgnnDJyxPFasjZODsRvRg~nVxQOFjyUlsgJGrszXQeei8cgK~KsIfDtR0UirTpaCIooamIRy69rjmnM2Tbkoy3tqzJjhR2LY3ymqwNEAQnqWJCCqlGLgMYdIbwtvKBCAOXa1rnrHh~~ShGRE6sLUGRuGNHWoSOubbJADoR-eg4DJ3qnYApeHsBiVJM-orYL3IPDlO1eyw~V~8aXy8sO~GHeB7OLoSMmvEvRN5Bq5eEfyOp1QPf2K7cp0crdxU-FobhqKY0lZC~1~EKJ1dzRVTURVcbBqag__&Key-Pair-Id=K1EOR8HYJKSWP1 "Phone (2a) Plus Beta") 2. Go to ***Settings > System > Nothing Beta Hub*** 3. Tap Import file and select the package. 4. 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](https://nothing.community/d/45141-nothing-os-40-phone-3a-series-open-beta "(3a) Series Post").

Drew5thGear

Rob ⚡️

Rob ⚡️ when will this be available for cmf pro 2. It says my phone isn’t on the beta list

FAJARAHAMED

KuJiN using which country as vpn

aryanpatel_p0106

Rob ⚡️ what about phone 3a pro??

SonoAX

Hi, just out of curiosity, has anyone experienced any form of data loss after the update?

ElOlive

Jiří Mrázek mee too

KamranTak

Join beta program successfully

ShivamYadav_d6q1ewTqtY

Rob ⚡️

What about 3a pro?

When beta update will be available in 3a pro???

Mr Steel

ShivamYadav_d6q1ewTqtY The answer is written at the bottom.

ElOlive

ShankarKumarRai how? Please help np2

Nishant

What about CMF Phone 2 PRO or CMF Phone 1

NeilAndreAugustine

Jiří Mrázek is there a fix for this yet?

Happyvm

how?? are u from India?? for me its showing error

Rokkotsu

Happyvm
My recommendation is to try 3 times to join, then restart the phone, and try again 3 times until it works. It worked just now for me that way. Good luck.

SarathNV

What about Phone 3 a and Phone 3 a Pro Series

SwayamGavankar

Same here. I’m on the India version of Nothing Phone

Rachan Kamath

I am getting a error message

Krysiu2137

Rachan Kamath I have the same problem I’m on np2

matomekgatle

Rachan Kamath me too, phone 2a, South Africa

fs4k

Can’t believe someone forgot to enable beta for regional variants!

LET ME IN(D)!

Mr_Rajiv

I can’t receive an update

AdeebShaikh

Will CMF phone 2 pro get nothing os 4.0 update ?

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