It is truly disappointing to see that the Galaxy S24 Ultra has still not received the One UI 7 (Android 15) update, while other brands have already provided the latest software to their devices.
You will be get One UI 7.0 stable version update may be in this quarter. If you like please accept as a solution it's help to others users also, click on 3dots in my reply section and click on accept solution. Thanks.
