These Devices get ONE UI 3.0 with Android 11...For more Information....use this link its very safe..1. https://www.androidcentral.com/samsung-one-ui-30-android-112.https://www.rprna.com/updates/one-ui/samsung-one-ui-3-android-11-news/
Yes bro I'm also noticed slightly and heat upto 40°c samsung fixed in next updates...if more m21 users report the heating issue in Samsung they will fix quickly .....
