Recently the Korean tech giant released the March 2025 update for 7 Galaxy devices, and now the latest security patch is also released for the Galaxy Z Fold4 and Flip4. Currently, both foldables are getting this new update in Korea.
Galaxy Z Fold4 and Flip4 March 2025 update details
The brand new update can be recognized with build versions F936NKSS6GYBD and F721NKSS6GYBE for the Galaxy Z Fold4 and Flip4, respectively. The update is delivered via an OTA package, and the size of this update is 433.17 MB.

The March 2025 update is a monthly security update, and this month this latest security update brings over 58 patches to address several security vulnerabilities. The update comes to solve almost 11 critical and 40 high-level security issues.
It does not carry new features but includes system improvements to provide better user experience. These updates usually take a few hours to be available on every model, as the company rolls out OTA updates in batches.
In addition, the Galaxy Z Fold4 and Flip4 are also waiting for the One UI 7 upgrade; however, these foldables will not receive the beta program, and as per the leaked schedule, both foldables will get the stable upgrade around mid-May 2025.