Fairphone Loudspeaker Microphone Failure

To confirm that the microphone failure is specific to loudspeaker mode, initiate a standard phone call and confirm the other party can hear you normally using the earpiece. Then, toggle the loudspeaker mode during the same call. If the other party reports an immediate loss of audio or significant muffling, the symptom is confirmed as an audio routing or microphone-specific failure during hands-free operation.