Mic not working on calls, but works with videos
I have an iPhone 4 CDMA. The microphone does not work on calls or voice memo, but works when taking videos. Also, the volume controls do not work. I bought this used, so I don't know what type of damage it may have sustained before I got it. I've tried changing the charge port flex (which includes the microphone) , but still no luck. Anyone have any ideas?
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