iPad Mini 1 called Facetime lost the mic and said the other end did not hear. People say that I hear normally. You can try to record a movie with the front camera and then play it out if you can't hear it, it's exactly this error.
Ways to identify iPad Mini 1 calling Facetime lost mic due to Main.
- Turn on front-facing camera recording if the movie plays without sound.
- Replaced the camera cable before testing and it still doesn't work.