Nearly a month after the beta 3 release, Samsung has just dropped another beta for the Galaxy S26 series, moving a step closer to the stable release. The latest release focuses on resolving bugs and issues that were found in the previous build.
The One UI 9.0 Beta 4 update for the Galaxy S26 series initially went live in India, and then quickly expanded to more regions, including the UK, Poland, Germany, and Korea. Only the US remains to receive the beta update, and the rollout could begin at any moment.
The latest beta update can be identified by a firmware version ending with ZZG4. It has a download size of about 1.25GB. While the update primarily focuses on bug fixes, it also includes the July 2026 security patch, making the device more secure than before.
Read the complete changelog below for a detailed look at the changes.
Galaxy S26 One UI 9.0 Beta 4 changelog:
- Improved an issue where the clock size appears abnormal when rotating the lock screen horizontally/vertically.
- Improved an issue where it does not operate normally when turning ON/OFF via Quick Panel or Settings while the Privacy Display routine is running.
- Improved an issue where the navigation bar disappears under certain conditions during games.
- Improved Ul performance issues that occur when opening and closing the Quick Panel.
- Fixed an issue where timer notification numbers are cut off or the Ul is unstable in Live notification.
- Improved an issue where the “Bluetooth audio media volume” routine action does not operate normally when connecting to vehicle Bluetooth via the Routines app.
If you have a Galaxy S26 running One UI 9.0 beta, you should be able to upgrade to the latest beta by navigating to Settings > Software updates > Download and install. Once the update package is downloaded, tap the Install now button.
Samsung would probably release a few more beta updates before the stable build starts rolling out sometime later this year. The stable One UI 9.0 is confirmed to debut later this month on the upcoming Galaxy Z Fold 8 and Galaxy Z Flip 8. A few weeks after that, older Galaxy devices will begin to receive the update.
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