Chosen Solution
Hi, my iPhone SE has a problem about microphone. When I am on general call(only voice), the microphone seems working well, but if I turn on speaker or I use a kind of video call(ex. Facetime), it doesn’t work! So, I found this iPhone 5s/SE (1st Gen) Front Camera and Sensor Cable. However I am not sure if this is right for my situation. Is this problem in secondary microphone?
FaceTime uses the microphone on the FCAM & Sensor flex so this would be the right part. There are 3 microphones in the iPhone. https://support.apple.com/en-us/HT203792 The bottom microphone is for Voice Memo and phone calls. The other microphones serve as error cancellationThe (top) front microphone is used for FaceTime calls, Siri and selfie videos with the front camera (FCAM). The top back microphone serves as error cancellationThe (top) back microphone is used for videos with the rear camera (RCAM). The top front microphone serves as error cancellation
