Channa.Nugadoni , via OnePlus Nord , Nov 30, 2020 : Hai, I accidently selected one of the sim for calling one of the contact but I am unable to find where I can deselt the same, please help me out.
Aarav Sahni , via OnePlus 7 , Dec 2, 2020 : Follow the steps bellow ----> 1) go to settings application 2) press "wifi and internet" 3) press "sim and network" If you want to disable second sim : 4) under sim settings choose the sim you want to disable and tap that sim name 5) once you rap the sim that you want to disable press the toggle button to turn it off If you want to choose a sim as default sim for calling / data : 4) under "default sim for" choose the sim you want to use for calling /data by default