These are the steps I received from support. I have requested where to find the Fairphone Checkup app (step 5).
This kind of behavior usually points to how the OS routes microphone input to different apps or functions. Here are a few suggestions to try:
- Check App Permissions
- Go to Settings > Privacy > Permission Manager > Microphone
- Make sure the Phone and Recorder apps have microphone access allowed.
- Safe Mode Test
- Boot your phone into safe mode (on most eOS devices: long-press power > long-press “Power Off” > tap “Reboot to Safe Mode”).
- Try making a phone call in safe mode.
- If it works, a third-party app might be interfering with the mic.
- Reset App Preferences
- Go to Settings > Apps > Menu (⋮) > Reset app preferences
- This will not delete any data, but it resets permissions and default apps.
- Check for OS Updates
- Go to Settings > System > Updater but as you mentioned, you already have 3.1
- Make sure you’re running the latest version of /e/OS — newer versions might have fixed microphone routing bugs.
- Microphone Path Test using Fairphone checkup app
- Perform a factory reset, and make sure you backup all your data.