This guide solve my problem.
I noticed about the problem when flashed AOSP based Rom. So, thinked it was a rom bug.
Then, flashed stock again and find the issue was still there.
After trying whit compressed air, and nothing changes, rooted my phone (again) and follow this guide, and proximity sensor is working again.
I am glad it worked for you. I have heard that this is a huge issue for the S4. Not sure about other models.
There are plenty of music players for Android available in Play Store. They … more
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?