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Main and rear microphone not working on 3.0.2-a15

  • /e/OS version: 3.0.2-a15
  • Device model(s): Fairphone 6
  • Impacted Application: /e/OS Dialer
  • Affected application/URL:
  • Browser/client and version:

The problem

While having used the microphone (for example in phone calls) successfully since installing /e/os on my FP6, the microphone (both main an rear) have stopped working for almost all apps since a few days.

The symptoms:

Both microphones work when using the Camera app and recording a video (tested using front and back camera) The microphone does not work in any other app. It does not work with Recorder, Phone, etc. What I tried:

  • Checking all permissions of all apps. All permissions are correct. I can also see Phone (for example) is using the microphone. It doesnt work though.
  • I connected a bluetooth headset. Again, there is no sound being recorded
  • I checked for /e/os updates. There are none
  • I tested all audio related options in Developer Options (trying to see if this is an audio routing issue). No luck
  • Booted in safe mode
  • Run the Fairphone Checkup app. Mics (both main an rear) also don’t work there
  • Perform a full factory reset and not install any apps. Behaviour still the same.

I don’t know what other options I have. I feel this is cause by an audio routing issue (due to the fact recorded videos DO have sound), but can’t solve it. After all the things I tried, I’m feeling more and more this is an /e/os audio routing bug, but can’t find any other mentions of this so far.

Any help?

Steps to reproduce I can't say. It occurred a few days back all of a sudden without a clear cause.

Technical details

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