![Five more old Samsung smartphones unexpectedly received stable One UI 4.0 on Android 12 | gagadget.com Five more old Samsung smartphones unexpectedly received stable One UI 4.0 on Android 12 | gagadget.com](https://gagadget.com/media/post_big/one_ui_4.0_update.jpg)
Five more old Samsung smartphones unexpectedly received stable One UI 4.0 on Android 12 | gagadget.com
![Samsung's stable Android 12-based One UI 4.0 update is here for the Galaxy S21 5G series - PhoneArena Samsung's stable Android 12-based One UI 4.0 update is here for the Galaxy S21 5G series - PhoneArena](https://m-cdn.phonearena.com/images/article/136430-wide-two_1200/Samsungs-stable-Android-12-based-One-UI-4.0-update-is-here-for-the-Galaxy-S21-5G-series.jpg)
Samsung's stable Android 12-based One UI 4.0 update is here for the Galaxy S21 5G series - PhoneArena
![Samsung One UI 4.0 (Android 12) Software Update: Device List, Features, Changelog, Release Date, Roadmap, and Latest News - RPRNA Samsung One UI 4.0 (Android 12) Software Update: Device List, Features, Changelog, Release Date, Roadmap, and Latest News - RPRNA](https://www.rprna.com/wp-content/uploads/2021/05/one-ui-4-ftrd.jpg)
Samsung One UI 4.0 (Android 12) Software Update: Device List, Features, Changelog, Release Date, Roadmap, and Latest News - RPRNA
![One UI 4 Update Delivers an Elevated Mobile Experience Centered Around You – Samsung Global Newsroom One UI 4 Update Delivers an Elevated Mobile Experience Centered Around You – Samsung Global Newsroom](https://img.global.news.samsung.com/global/wp-content/uploads/2021/11/One-UI4_main1F.jpg)
One UI 4 Update Delivers an Elevated Mobile Experience Centered Around You – Samsung Global Newsroom
![Update: US rollout schedule] Samsung reveals the One UI 4.0 upgrade rollout schedule for its devices Update: US rollout schedule] Samsung reveals the One UI 4.0 upgrade rollout schedule for its devices](https://www.xda-developers.com/files/2021/09/One-UI-4-Beta-home-screen-on-Galaxy-S21-1024x576.jpg)