Rear microphone works intermittently
The rear microphone on my 5S works intermittently so Siri doesn't work, nor does voice input for Maps. I replaced my battery and was very careful not to open the case beyond 90 degrees. Sometimes the mic will work if I slap the phone against my palm, but eventually stops working again. I am assuming a loose connection, but don't know where to check. Any thoughts appreciated.
Is this a good question?