Samsung s23ultra when One ui7 beta update after Airtel 4G 5G connectivity issue call drop and call connecting issues

Already I am facing network issue Airtel 4G 5G not working call connecting issues after update 

S23 ultra one UI 7 after update network issue Airtel not working properly Wi-Fi call not working

Automatic activate dark mode how to deactivate,

This is a phone with a very bad battery light upon purchase. After taking it to the service center and getting it serviced it gets the most amazing song screen on time approx more than six hours.Awesome phone works even better after updateAfter updat...