Proximity sensor
Hello!
I have iPhone 8 updated to the latest iOS ver with glass screen protector (full with black up and down), have some problems with proximity sensor. During calls when I move phone near ear screen turns off - this is ok, but when I am moving phone away from my ear screen doesn't turn on - not always, sometimes it works. This is annoying. Does anyone have idea what to do? Phone is new, I've had it for 4 days.
Thanks in advance for any help
iPhone 8, iOS 13