Samsung has released a new software update for the Galaxy Z Fold 6, Galaxy Z Flip 6, Galaxy Z Fold SE, Galaxy Z Fold 4, and Galaxy  Z Flip 4 foldable devices, bringing the October 2025 security patch. As for this new release, the October 2025 security update has currently released for users in Korea, and it will soon expand to global users.

These foldables are currently running on the One UI 8 (Android 16), bringing new customizations and AI enhancements. As always, this update helps improve the security and performance of your phone.

Users of the Samsung Galaxy Z Fold 6, Galaxy Z Flip 6, Galaxy Z Fold SE, Galaxy Z Fold 4, and Galaxy Z Flip 4 foldable devices can identify the latest update by the following firmware version: Although this firmware doesn’t bring visible changes, it is important for maintaining the phone’s security and long-term performance.

• Galaxy Z Fold 4: F936NKSU6IYJ1
• Galaxy Z Flip 4: F721NKSU6IYJ1 
• Galaxy Z Flip 6: F741NKSS2CYJ3
• Galaxy Z Fold SE: F958NKSS2CYJ3

The October 2025 security patch addresses over 30 known security issues. This update helps protect your phone from harmful software, bugs, and other threats. Samsung is working to make this update available to more Galaxy devices.

To download the update, go to your Galaxy phone’s Settings and then tap “Software Update” >> “Download and Install.” Once the update is downloaded, tap “Install Now.” Your phone will restart, and the latest security patch will be installed.

Samsung has rolled out the Android 16-based One UI 8 update for the Galaxy S22, Galaxy S22 Plus, Galaxy S22 Ultra, Galaxy Z Flip 4, and Galaxy Z Fold 4 smartphones. This update takes your Galaxy experience to the next level with new features and improvements.

Users of the Galaxy S22 series,  Galaxy Z Flip 4, and Galaxy Z Fold 4 are getting the One UI 8 update through One UI build versions:

• Galaxy S22: S901BXXUIGYI7 
• Galaxy S22 Plus: S906BXXUIGYI7
• Galaxy S22 Ultra: S908BXXUIGYI7 
• Galaxy Z Flip 4: F721BXXUAIYIF 
• Galaxy Z Fold 4: F936BXXUAIYIF

The update’s installation package is approximately 3.2GB in size and brings several new features and improvements to make your device better and more useful.

Additionally, it also installs the October 2025 security patch to improve system security and stability. You can download the update via Settings >> Software update >> Download and install.

One UI 8 features:

Samsung’s Android 16 brings several new features and improvements to the Galaxy S22 series, Galaxy Z Flip 4, and Galaxy Z Fold 4. It makes the phone faster and easier to use. 

Moreover, it also comes with a new, modern design that gives your phone an even better look. Plus, this update allows you to customize your lock screen, home screen, and notifications more easily.

Samsung has started rolling out the stable One UI 8 update to its mid-range Galaxy A55 and Galaxy A35 in India and internationally, respectively, after launching them in Korea last week.  Galaxy A55 and Galaxy A35 users can enjoy One UI 8 features, and it is expected to arrive in other regions soon.

The major update brings a number of new features and improvements to the Galaxy A55 5G and Galaxy A35 5G devices, along with the goodness of the Android 16 operating system.

One UI 8 is Samsung’s custom skin that runs on top of Android 16. It offers a more refined and user-friendly interface, with enhanced privacy and security options, redesigned widgets and notifications, improved performance and battery life, and more.

Samsung Galaxy A55 users are getting the One UI 8 update with One UI build versions A356EXXU5CYI8. On their Galaxy devices, users can manually check for the update by going to Settings > Software update > Download and install. The download size is around  2,342.12MB, so make sure to connect your phone to Wi-Fi and that the battery is at least 50% charged before you start downloading.

The One UI 8 update enhances your phone’s performance and makes it easier to use. The update comes with a fresh and modern design that gives your phone a fresh and attractive look. This update allows you to customize your lock screen, home screen, and notifications even more easily.