Chosen Solution
Hi there, I’ve had 2 iPhone 6S recently with the exact same problem. When speaking to someone, the microphone sounds very crackly. When they use headphones the sound is clear. I’ve done the basics such as replace the charging port. Clean the bottom speaker holes. I changed the camera up top in case it was the proximity sensor. Has anyone experienced this? Thanks Update (09/28/2017) In an interesting turn of events. After trying a 2nd new charging port it solved the issue. To clarify:
- Phone presents with microphone issue
- Replaced charging port still has exact same microphone issue
- Replaced the charging port again and it solved the issue.
It’s most likely an audio ic chip issue causing the problem. This involves replacing the audio chip on the logic board which is quite difficult as it requires microsoldering to do so. I think Minho has more info on this.
Why not change the microphone to have a try. Here are the videos about how to tear down and reassemble iPhone 6s. iPhone 6S Plus Full Disassembly/Tear down iPhone 6S Reassembly/Put Back Together Note: Tear down have a risk
Same problem here after changing 4 charging ports. Can’t solve this issue.
