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Any app that uses the microphone on my wife’s iPhone 7 Plus freezes. Any made or answered call there is no received audio and they can’t hear her. When trying any video app, Camera or Snapchat they hang. Voice Memo will hang when the record button is pressed, timer doesn’t count. I’ve tried restoring through iTunes with no luck. She is currently on 11.2.5. She thinks this started after updating, could this be software related or hardware? Also when ever a soft reboot is tried it hangs at the Apple logo, a hard reboot, power and volume down, is required, sometimes multiple times. Thank you.
There are several microphones on an iphone and which one is used is dependent on the application. https://support.apple.com/en-us/HT203792 The bottom microphone is for Voice Memo and phone calls. The other microphones serve as error cancellationThe (top) front microphone is used for FaceTime calls, Siri and selfie videos with the front camera (FCAM). The top back microphone serves as error cancellationThe (top) back microphone is used for videos with the rear camera (RCAM). The top front microphone serves as error cancellation Make sure you update your device to the latest version of iOS and then try to isolate which microphone is not working properly by trying each individual microphone with the related apps above. If the issue affects more than one microphone, then it could be the Audio Codec IC on the logic board. Anything at the logic board level will require micro-soldering so you would need to find a repair shop that offers those services.
the problem is with the audio ic its a logic board level issue, its fixable but requires very skilled technician
