OneOS

byChar0n · Tools

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AI summary

Runs a second Android system alongside One UI on rooted Samsung Galaxy devices, switching between them without flashing. Version 0.4.99 updates the Bluetooth audio bridge for Galaxy S23, S24, S25, and Z Fold devices.

Generated by AI. May contain inaccuracies.

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About this app

OneOS runs a second Android system next to One UI on a rooted Samsung Galaxy and switches between the two without flashing anything. One UI stays installed; the other system lives in a folder on the phone and starts on One UI's kernel as a container with its own zygote and system_server. You switch from the OneOS app and come back with Back to One UI (the OneOS app inside the other system) or by holding Volume Up + Volume Down for 3 seconds.

License

OneOS is licensed under the Apache License 2.0. Parts of this repository come from other projects and keep their own terms: the OneLineage-derived session scripts (published with WeWaffles' permission). See NOTICE and CREDITS.md.

tools android system root required samsung

What's new

v0.4.99Nov 12, 2026

OneOS 0.4.99: Bluetooth sound on the Snapdragon Galaxies, second try Update from the Update banner on the app's launch screen, or install the APK from SourceForge: https://downloads.sourceforge.net/project/oneos-mirror/v0.4.99/OneOS-0.4.99.apk
After updating, open each system's page and tap Update.
Bluetooth sound on the Galaxy S23, S24, S25 and the Z Folds: 0.4.97's fix did not work. Galaxy S23 reports on 0.4.97 still had no sound in Bluetooth headphones. OneOS's Bluetooth audio bridge was meant to notice when Samsung's audio service took its place and take it back, but it never noticed. Now it takes its place again every second. Not tried on a phone yet: if the sound still stays on the speaker, please send a report from the app. That is everything that changed since the 0.4.98 release.