I think that you can search the Internet for such services as misterfix.us/shop/iphone-repair/iphone-5/iphone-5-microphone-speaker-replacement/ . I repaired the microphone speaker on my phone twice. The first time I poured jam on the microphone, the second time I broke the screen and damaged the microphone. It seems to me that in such matters it will be easier if you turn to professionals. They will do their job quickly and efficiently.