Samsung has officially started rolling out the One UI 8.0 update based on Android 16 for the Galaxy S21 FE, marking the fourth major software update for this popular Fan Edition smartphone. The update is currently live in Thailand and Vietnam and is expected to expand to more regions in the coming weeks.
The new One UI 8.0 update comes with firmware version G990EXXUIHYJ2 and has a file size of over 2GB, so users are advised to download it via a Wi-Fi connection. Alongside major Android 16 features, this update includes Samsung’s latest September 2025 security patch, which enhances system security and device stability.
With One UI 8.0, Galaxy S21 FE users can expect improved performance, refreshed visuals, enhanced privacy controls, and smarter AI-powered customization options. The update also refines multitasking, battery efficiency, and camera performance for a smoother user experience.

If you own a Galaxy S21 FE, you can check for the new update manually by going to Settings > Software update > Download and install. Once downloaded, tap Install now to begin the installation.
The Galaxy S21 FE continues to receive long-term software support from Samsung, reinforcing the company’s commitment to providing flagship-level updates to its Fan Edition devices. With Android 16 and One UI 8.0, the S21 FE feels refreshed and ready for another year of top-tier performance.