Congrats, you just qualified for an iPhone replacement. Does it go away after a restart?
My girlfriend is having the same issue. She has an iPhone 6S Rose Gold. I restore the iPhone using DFU MODE and set it up as a new iPhone and still having the same problem. We took it to the Apple Store thinking it was hardware problem. They replaced the phone and when we got home still having the same problem. I think is more of a software problem. Does yours make the same noise when watching a YouTube video ?Anybody experiencing this?
My girlfriend is having the same issue. She has an iPhone 6S Rose Gold. I restore the iPhone using DFU MODE and set it up as a new iPhone and still having the same problem. We took it to the Apple Store thinking it was hardware problem. They replaced the phone and when we got home still having the same problem. I think is more of a software problem. Does yours make the same noise when watching a YouTube video ?
Does it happen with the phone out of the case and not resting the speaker on something?[/QUOTE
It happens without the case.
I know this is an older thread but I have the same sporadic issue with my iPhone 6s as well. Did this ever get solved?
Still happening on my girlfriend iPhone but not as much. I have the iPhone 6S Plus and I don't have that problem. By the way what iPhone color do you have and want carrier ?