Samsung Galaxy M21 is now receiving Android-11 based One UI 3.1 update. As per the information, the update is currently rolling out in India carrying firmware version M215FXXU2BUC8.
In addition to Android 11 and One UI 3.1 goodies, the update brings the latest security patch update released in March 2021. This is a major update having a download size of about 1GB. So, It is recommended to download the package over a Wi-Fi connection.
The update should bring features like chat bubbles, private share, new UI design, AOD customizations, one-time permission, dynamic lock screen, more lock screen widgets, dedicated conversation section in the notification area, and auto permission reset.
The Android 11 update should reach your Galaxy M21 with a pop-up notification. If you have not received it yet, then check the status manually by navigating to Settings >> Software update.
