OneOS

byChar0n · Tools

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AI summary

Runs a second Android system alongside One UI on rooted Samsung Galaxy phones, switching between them without flashing. Version 0.5.01 fixes call handling when calls are declined or ended; licensed under Apache 2.0.

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.

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What's new

v0.5.01Nov 13, 2026

OneOS 0.5.01: calls end again when you decline or hang up Update from the Update banner on the app's launch screen, or install the APK from SourceForge: https://downloads.sourceforge.net/project/oneos-mirror/v0.5.01/OneOS-0.5.01.apk
After updating, open each system's page and tap Update.
Calls end when you decline or hang up, in every system that uses Samsung's calling service (all but OxygenOS): Samsung's calling service ended the call on the network, but held the news back until the system said it was ready for it, which only One UI does. The call stayed in the Phone app and no other call could be made (Z Fold8 with the Pixel 11 Fold build). Now the system says so as soon as it takes the call. Not tried on a phone yet: if a call still stays on screen after it ends, please send a report from the app.
That is everything that changed since the 0.5.00 release.