Galaxy S26 Beta 4: Samsung Rolls Out One UI 9.0 Update

Samsung has begun rolling out the One UI 9.0 Beta 4 update for its Galaxy S26 series, just a week after announcing the rollout schedule. The latest beta build is currently available to users in India and is expected to reach other regions, including South Korea, in the near future. This update focuses on resolving several bugs and is anticipated to include performance enhancements.

The One UI 9.0 Beta 4 update, delivered with firmware version S948BXXU4ZZG4, is a substantial download, approximately 1.25GB in size. It addresses various user-reported issues, enhancing the overall stability and functionality of the Galaxy S26, Galaxy S26+, and Galaxy S26 Ultra. Crucially, the update incorporates the July 2026 security patch, bolstering the devices' defenses against emerging threats.

Key Fixes and Improvements in Beta 4

Users upgrading to this beta version can expect a smoother experience due to a series of targeted fixes. Samsung has resolved an issue where the clock display could appear distorted when rotating the lock screen between portrait and landscape orientations. Additionally, the update corrects a problem that interfered with the normal operation of Quick Panel or Settings toggles when a Privacy Display routine was active.

Gamers will appreciate the fix for a bug causing the navigation bar to vanish under specific circumstances during gameplay. The company has also targeted general UI performance issues that might have arisen when opening or closing the Quick Panel. Furthermore, a bug affecting timer notifications, causing numbers to be cut off or the UI to become unstable, has been addressed. The integration of the July 2026 security patch aims to protect against various vulnerabilities.

The Routines app has also seen improvements, with a fix for an issue where the "Bluetooth audio media volume" routine action failed to operate correctly when connecting to vehicle Bluetooth. These comprehensive fixes aim to bring the Galaxy S26 devices closer to the stable release of One UI 9.0.

For those enrolled in the One UI 9.0 Beta Program, checking for the update is a straightforward process. Navigate to Settings, select Software update, and then tap on 'Check for updates.' Once the download is complete, users can initiate the installation by tapping 'Install now.' The device will restart automatically to finalize the update, which typically takes a few minutes.

Samsung's beta testing approach for its One UI software allows developers and enthusiasts to test new features and identify potential issues before the public release. This iterative process, involving multiple beta builds, helps ensure a polished and stable final product. Given the typical development cycle, Samsung may release additional beta versions before launching the stable One UI 9.0. This is often timed around the unveiling of new flagship devices, such as the anticipated Galaxy Z Flip 8 and Galaxy Z Fold 8 series, which are expected later in 2026.