What's the change?

U installed?

Hey,..after my device was updated to the latest version...one day my phone all sudden display went black...the phone touch was giving me response but the screen was black...I tried force restarting by pressing power button and volume down...it starte...

My device is s20 plus SCG02

Hey,..after my device was updated to the latest version...one day my phone all sudden display went black...the phone touch was giving me response but the screen was black...I tried force restarting by pressing power button and volume down...it starte...