Samsung is expanding, rolling out the Android 16-based One UI 8 update for the Galaxy S21 FE smartphone. The update is currently live for users in  Europe and India and will soon expand to more countries.

The new major software update brings many exciting features and improvements to make your phone better and easier to use. It also includes the September 2025 security patch to improve system security and stability.

One UI 8 update for the Samsung Galaxy S21 FE comes with the build version G990B2XXUFIYJ1 in  Europe and India. Users will have to download around 2.3GB package to install the update.

With One UI 7, the Galaxy S21 FE gets a fresh and modern UI. A key feature of this update is the Now bar, which provides quick access to essential tools and apps. Galaxy users will also enjoy redesigned icons, a vertical app drawer, larger home screen folders, and improved widget customization.

To check for the update, users can go to Settings >> Software Update >> Download and install on their device. Once downloaded, tapping “Install Now” will begin the installation and restart the Galaxy phone upon completion. Now, users can enjoy several new features.

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.