Final major Android upgrade starts rolling out to Samsung Galaxy S21 FE
Sunday, October 26, 2025 at 10:13PM 
Source: Samsung
Android 16-based One UI 8 has begun rolling out for Samsung Galaxy S21 FE units in Thailand and Vietnam. This upgrade is expected to be the last major upgrade coming to this Fan Edition version of the phone, as Samsung's four-year update guarantee ends. The update arrives a few months after One UI 7 rolled out in May. Even as the last major upgrade guarantee ends in January 2026, the phone is still expected to receive security updates for one more year.
The update started rolling out on October 23, but there is no word from Samsung on when it will come to other regions. According to SamMobile, it is a 2GB update and comes in the G990EXXUIHYJ2 version update. You can check if the update has made its way to you by heading into the Settings app and into the Software update tab. You should see a Download and Install option if it's available for you.
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