When I talk on the iphone 4s , my face touches the screen and puts the phone on mute, so I have to put the iphone on the speaker and talk on the speaker, is there a way to to avoid this problem?
The screen should turn automatically turn off when the Proximity Sensor detects it.
it does not
Are you using a case?
If so, is it designed for the 4s ?
Test your sensor. Should be at above the camera/speaker at the top. Cover it when making a phone call, screen should turn off.
https://www.youtube.com/watch?&v=blMzWkHhFFw
When I talk on the iphone 4s , my face touches the screen and puts the phone on mute, so I have to put the iphone on the speaker and talk on the speaker, is there a way to to avoid this problem?