Help Screen Blackout while talking?

[jstcynske]

On my old iphone and my new EVO 4g, the screen blacks out when calling someone so that you cant accidentally touch the screen and end a call. My wifes hero does not do this, does anyone know if this can be fixed?
Thanks,

 

[Podivin]

I don't know for SURE that a Hero should do that, but I believe that it should.
I'm wondering if she has case on the phone that is obstructing the proximity sensor on the phone. On my HTC Eris the sensor is on the upper left of the screen.

 

[Xyro]

You need to download an app to do this. It's called 'Proximity Sensor'.