Hi guys im using Samsung s21 fe 5g it was working smoothly before the android 13 update. But after the 13 update the phone will restart automatically.. Did anyone know the reason. Please help me. Thanks in advance.

I was bought my samsung s21 fe from Dubai.This phone is a middle east version. But i cant use samsung pay on this  mobile. When i open samsung pay on this mobile there is showing samsung pay not supported on this phone. So i contacted coustomer care ...