I got a new 6s a month ago or so (a jump up from a 4s). Ever since I have gotten complaints about sounding muffled during calls. The other end sounds nice and crisp to me, but they say I sound muffled.
I have tried...
-case on or case off, doesnt matter
-backed up phone and wiped it clean, no change
-restored from that backup, no change.
-turned off noise cancelling, no change
-hard reboot, no change
-tried holding the phone a few different ways, different ears, no change.
-voice recordings sound OK to me, but not fantastic
I am at a loss and am fairly certain this iphone is bad. Any other ideas? If not, next step?
