My Lumia 520 Proximity sensor may be not not working as the screen don't goes dark when i cover the phone upper side with hands when im on a call and the red proximity light not also blinking when on a call.. I updated my phone to amber few days back. i would like to inform that the phone was fallen from a little height yesterday but the problem should not start because of it as im facing the problem from today and also like to mention that when i restart the phone the proximity does work again for few minutes and then again goes not working state. what is the reason behind this problem im facing.. anyone facing the same problem around here....?????????
