Galaxy S21 FE (Exynos) Starts Picking Up December 2025 Security Update

Samsung has been on a roll lately, rolling out the latest security patch to a wide range of devices. In the coming days, even more models are expected to join the list. For now, Samsung has pushed the December 2025 security update to the Galaxy S21 FE with the Exynos chipset, and it is currently available only in Vietnam.

Samsung rolls out December 2025 security update to Galaxy S21 FE (Exynos)

As shared by SammyGuru contributor Mohammed Khatri, Samsung has started rolling out the December 2025 security patch to the Galaxy S21 FE (Exynos). It is currently live in Vietnam. The build version for this update is G990EXXSKHYK5.

If you live in Vietnam and own the Exynos variant of the Galaxy S21 FE, you can go ahead and check whether the latest security update is available for your device. To do so, head to Settings > Software update. If the update is available, tap Download and install. You will then need to wait a short while for the installation to complete.

The December 2025 security update brings fixes for 57 vulnerabilities identified by Samsung, Google, and other partners. As always, we recommend keeping your device updated to the latest security patch level. That is all for now. We will keep you informed as the update expands to more regions and more devices.