Earlier this month, Samsung started sending out the update to One UI 3.0 based on Android 11 to the Galaxy A51 units sold in Russia. It was inevitably just a matter of time until the update would make it to more countries and territories, and today it's reached India. The new release for Indian units has been captured on a couple of Samsung-dedicated firmware pages, with the new build number ending in DUB1 and the February 2021 security patch level included for good measure. The over-the-air rollout should start any moment now, and then from the time it does expect it to take at least a...
Source: https://www.gsmarena.com/android_11_update_reaches_samsung_galaxy_a51_units_in_india-news-47778.php