I have read several having the problem with screen going black during a call, but my problem is different in that it does not even work to make the call. Phone works fine using all apps, sending SMS etc, but once I try to place a call, the screen goes black and I do not hear any signals going through or nothing. At the other end the call takes place, but with noone on the line. Same for incoming calls, looks ok until I press answer button, then the screen goes black and I can not hear or be heard. Once the call is ended from the other side, which can take long in case of answering machines etc, the phone looks ok again. I have taken off the screen cover and cleaned the phone and I have reset the phone completely, but problem remains. Anyone has a clue what the problem is!?
