Samsung has started rolling out the October 2025 security update for the Galaxy S21 FE. Right now, it is available for users in Vietnam, and it will reach other countries soon. This update comes soon after Samsung began releasing the One UI 8 update for the device.

October 2025 security update for Samsung Galaxy S21 FE arrives with the One UI build version G990EXXSJHYJ4 and is about 300MB in size. Even though it is not very large, it includes important security fixes. The latest security patch addresses over 30 security issues, some of which could put your phone at risk.

October 2025 security update is coming while Samsung is still rolling out One UI 8 for the Galaxy S21 FE. The One UI 8 update started last week, but many users in different countries are still waiting for it. Even though this major UI update is not yet available for everyone, Samsung is making sure devices get the latest security fixes first.

This security update rollout shows that Samsung is focused on keeping its users’ phones safe. Installing updates on time is important to protect your phone from security threats and ensure it works well.

To get the update, go to your phone’s Settings >> Software Update >> Download and Install. If you don’t see it right away, don’t worry. Samsung usually releases updates in phases, so it might take a few days to appear on your device.

Galaxy S21 FE users should check for this update and install it as soon as it is available. Keeping your phone updated will not only improve security but also help your device run better with the latest improvements.

The post Galaxy S21 FE grabs October 2025 patch amid slow One UI 8 rollout appeared first on Sammy Fans.

The Samsung Galaxy S21 FE is now getting its very last major Android and One UI update. In other words, Android 16 has started to roll out to the Samsung Galaxy S21 FE.

The Galaxy S21 FE is now getting its final big Android update, the Android 16 update

Samsung promised four major Android OS updates for the device, and with this update, the company fulfilled that promise. The update has started to roll out in Thailand and Vietnam, but it will spread to various other markets in the coming days/weeks.

The update comes with a firmware version G990EXXUIHYJ2, and the download size is over 2 GB, so keep that in mind if you’re not on Wi-Fi. This update includes the September 2025 Android security patch, by the way.

Your phone will let you know when the update becomes available, though you can always manually check via the settings. That could speed up the process a bit, but the update is rolling out in stages, so even when it becomes available in your region, you may have to wait a bit.

Android 16-based One UI 8 update does bring a number of small improvements to the phone. Multitasking improvements are a part of the package, as well as better workflow automation.

Samsung is also improving customization with this update. The modes and Routines section is receiving an additional preset routines and data-linked actions. The camera interface is getting some updates too, as is the Secure Folder, amongst other things.

Samsung promised four major Android OS updates, and the company delivered

As a reminder, the Galaxy S21 FE launched way back in 2022 with Android 12-based One UI 4.0 skin. It already received Android 13, 14, and 15 updates, prior to this Android 16 update that has started to roll out.

This is not the end of the road for updates in general, however. The Galaxy S21 FE will continue receiving security patches for at least another year.

The post Galaxy S21 FE Gets Its Final Big Android Update — Android 16 Is Here appeared first on Android Headlines.