I have SAMSUNG Galaxy S10 Lite (G770F) and I have NEVER received any software update and the last update was on 1 Jan 2020. Even security patches update have been missing since last Jan 2020.
I tried to use Smart Switch and it says no updates.
One UI Version: 2.0
Android Version: 10
Baseband Version: G770FXXU1ATA2
Build number: QP1A.190711.020.G770FXXU1ASLF
Date: 1 Jan 2020.
For your help please.