I'm having the same issue. It happens during the day but its not constant. Sometimes the earpice and the loudspeaker sound distorted sometimes they are just fine. I can't pin point exactly whats triggering this behaviour. I did a factory reset and it solved the problem for a day or so, and then this came right back. Any suggestions? EDIT: Ok, I solved my problem. This might sound really stupid, but trust me, it was the issue for me. I had a protective screen film on the back of my phone (I had one spare, so I used it on the back). For some odd reason it creates some sort of static or malfuction with the antenas or the eletrical components. I don't know, I'm not an engineer, but the second I removed it the issue was gone. Same second, never came back since. I noticed the distortion on the earpiece had different intensities based on where I was grabbing the phone, specially on the back. Thats when I decided to remove the protective film all together and BAM, solved. So if you have any case, or protection or anything, remove everything and see if the issue still stands. Good luck.
... View more