Proximity Sensor
When I pick up a call and place the phone near my ear, the screen turns off for a sec and turns back on again. I am facing this issue with other iphones at home as well. Also when I press the lock button, the screen turns off for a sec and turns back on again. Is it a software update bug? I also tried installing a fresh copy of ios but the problem isin't solved.
iPhone 11, iOS 13