Download One UI 2.1 Android 10 For Galaxy A51 Official Update
Download Samsung Galaxy A51 One UI 2.1 Update | A515FXXU3BTD4
One UI 2.1 update for the Samsung Galaxy Note 10 and Galaxy S10 adds 120 HZ refresh rate and re-enables NavStar, but there's a catch - NotebookCheck.net News
Samsung Galaxy A51 start receiving One UI 2.1 and April 2020 Security patch update - GoAndroid
Samsung Galaxy A51 gets an update to One UI 2.5
Samsung's One UI 2.1 update is now rolling out to the Galaxy A51 | Android Central