Galaxy S25 Series Receives March 2026 Security Update
Samsung has released a new software update for the Galaxy S25 series, focusing on bolstering security rather than introducing the anticipated One UI 8.5. The update, currently rolling out in South Korea, delivers the latest security patch for March 2026.
Security Enhancements
The update carries firmware version S93xNKSS8BZC1 and has a download size exceeding 500MB. It addresses 65 vulnerabilities identified in previous software versions, enhancing the overall security posture of the devices. Source
Affected Devices
The rollout includes the following models within the Galaxy S25 series:
- Galaxy S25
- Galaxy S25+
- Galaxy S25 Ultra
How to Update
Galaxy S25 series users in South Korea can check for the update by navigating to Settings > Software update and selecting Download and install. The installation process will require a device restart and may seize several minutes to complete.
One UI 8.5 on the Horizon
While this update focuses on security, the stable release of One UI 8.5 for the Galaxy S25 series is expected soon. Samsung has already released seven beta versions of One UI 8.5 and a stable build has been spotted on Samsung’s servers. Source
Broader Rollout
Samsung is expected to expand the availability of both the March 2026 security update and the One UI 8.5 update to other markets in the coming days. Source
Other Devices Receiving Updates
Alongside the Galaxy S25 series, several other Galaxy devices are also receiving updates. These include the Galaxy Z TriFold, Fold 7, Flip 7 and other foldable models. Source
One UI 8.5 Eligibility
The One UI 8.5 update is expected to roll out to a wide range of Galaxy devices, including those that received One UI 8.0 or launched with it. Eligible devices include various models from the Galaxy S, Z, A, M, F, and Tab series. Source