hi, i recently replaced the screen on my LG connect 4g, and now my screen is going black once my calls start connecting or ringing, and it stays like that permanently. I tried screeble just now and it didn't help... i know this probably is a issue with the proximity sensor, and i just re opened everything to make sure all the connections are operating properly and there is nothing obstructing the sensor... still have this issue... was wondering if anyone had any similar issue and/or fixs to this issue, thanks.