Galaxy Z Flip3 and Fold3 Enter Final Phase of Monthly Updates with May 2025 Security Patch
Samsung begins quarterly update transition with a significant security boost for its 2021 foldables.
May 2025 Security Update Rolls Out in Korea
Samsung has begun rolling out the May 2025 security update for its foldable smartphones, the Galaxy Z Flip3 and Galaxy Z Fold3, starting with users in South Korea.
- The update enhances overall device security and stability, and a global release is expected shortly.
- This marks the first security patch since the release of One UI 7 based on Android 15.
Transition to Quarterly Updates Starts in July
Since their launch in 2021, both the Z Flip3 and Fold3 have received monthly updates, ensuring strong post-launch software support.
- Beginning July 2025, these devices will shift to a quarterly update schedule, receiving new patches every three months.
- This transition reflects Samsung’s lifecycle support strategy for older devices.
Build Versions and Installation Details
The May 2025 patch is identified by the following One UI build numbers:
- F711NKSS9JYE2 for Galaxy Z Flip3
- F926NKSS9JYE2 for Galaxy Z Fold3
- The update package is approximately 360 MB in size, ensuring a smooth installation process without requiring extensive storage.
Critical Security Enhancements Included
The new patch includes a comprehensive list of vulnerability fixes aimed at improving system defense across Android and Galaxy-specific layers:
- 58 high-level vulnerabilities addressed by Google, applicable across all Android devices.
- 20 Samsung-specific vulnerabilities were patched, including 13 detailed fixes aimed at improving performance and safety.
How to Manually Check and Install the Update
Users are strongly encouraged to install the update promptly to maintain device security:
- Navigate to Settings > Software update > Download and install.
- If the update hasn’t reached your region yet, manual checking will help you stay ahead on security protection.
