When ever I make a phone call using my lg g4 the screen goes completely black and there is no way to get it to come back unless the other person hangs up. I've done some research and i found out that this has to do with the proximity sensor being uncalibrated. I tried following the steps online to fix this problem but the problem is that those steps are used on US models. I am wondering if anyone knows the code in order to access the hidden menu on the dialer for koodo or if you have a solution to this problem?
Thanks for your help.