Exclamation [Q] Proximity sensor busted

Hi all,

My proximity sensor is busted. The screen goes blank during calls and there is no way for me to cut the call without rebooting the phone. This happens on stock as well as non-stock ROMs. I tried hardware disabler, but the app crashes. Is there any other app to disable the proximity sensor?
Current Device:
Motorola RAZR XT910

Previous Devices:
Samsung Galaxy 3
Nokia 5800
Motorola RAZR2 V8
Nokia 6300