Default [Q] My phone will not turn on during a phone call....

i545 s4 Verizon.

I fixed my broken screen myself but however I toasted the digitizer and probably some other sensor towards the top. Now when I am in the middle of a phone call, if I have to turn on the screen to get it off speaker phone or navigate to take notes or whatever, the screen will not turn on until the person hangs up the phone or until I power cycle it with the battery.

Is there some kind of option I can turn off to stop this sort of action? Thanks.