I cracked the screen of my LG Nexus 5 (running Android Lollipop 5.0.1). This seems to have made the proximity sensor go haywire. Now, whenever I make a call, the screen immediately goes black and stays that way. Hitting the power button makes it come back for a fraction of a second sometimes but not reliably.
I've enabled 'power button ends call' just to have the option of ending a call, but calling automated services to top up my phone credit or pay a bill is impossible since I have to use the on-screen keypad to which I have no access.
I have used the ProximityScreenOff-Lite app before upgrading to Lollipop and it was working. After the upgrade, however, no matter what settings I use it doesn't work any more. Is there a way to force the screen to stay on during a call in stock Android 5.0.1? Are there any other apps to try? Anything to just completely disable the proximity sensor since its useless as it is anyway?