Chosen Solution

Some time ago i dropped my iphone 5 and i saw no damage. But later I noticed the following things:

  1. I can’t use my microphone when I call using speaker.
  2. I can’t talk to siri.
  3. I can’t talk on messenger calls.
  4. I can’t talk on Teamspeak 3 app. Regular calling without speaker works fine. What speaker should I replace, or isn’t it broken and just loose because of dropping it?

That microphone is located on the front facing camera flex cable, near the ear speaker. Its pretty simple to change. ifixit has a guide for it.