Hello,
I am using a Q10. I installed 2 OSs from 10.2 and 10.3. Restarted. Reset with volume buttons. Removed the battery. Removed the screen protector. All sensors including proximity sensor are working in tests of BBVE but on phone calls the screen doesn't go black, doesn't sleep. I am trying to solve this for a month. Please help if you know the solution. Thank you in advance.