Mic is not working - callers cannot hear me

Hello, I have a 2nd hand FP4. But now callers don’t hear me anymore. I tried the ## test and in the audio test at the mic part I don’t hear anything. When I fill in ‘fail’ the screen goes bnack out of the test. When I try the test ‘calling’ I end up in a call screen with ‘‘112’’ alarmnumber? I tested with another phone and indeed hear cracking sound throug my phone. How do I know for sure it’s the mic part and what part to order? I don’t see ‘mic’rophone’’ in the ordering list.

I have a FP3, but maybe this helps: Did you try use the loudspeaker? Did you try to use a headset? Did the other person hear you then?

If you can make a phone call with loudspeaker it could be that the module with the bottom mikrophone is broken.

The mics of the FP4 are not in any module that can be changed by the user

I dont get that what test calling? Did you reach the test menus or not? How did you test the mics, the FP4 has 3. Did you scratch on the respective hole and you didnt hear anything at all 3?

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