I noticed that when my phone (LG Stylo 6) rings the screen instantly goes black. Also when I make a call before I ever move the phone towards my face the screen goes black. I have to push the power button twice to get the screen back on so I can switch to speaker or enter numbers in an automated system. I found the hardware test on my phone the other day and it shows proximity sensor not responding contact a customer center. Has anyone else had this problem and been able to solve it? Thank you for your input.