Chosen Solution
So I replaced the earpiece and and Lightning connector on an iPhone 7 after muffled hearing and a bad microphone. Once I put it back together and tested it, the microphone still was not working 100% but a lot better than before the repair. After the repair, the home button would not work at all. Is the earpiece and the home button not working together properly? What can I do to regain functionality? How do I address the microphone still not working at 100%?
Did you disconnect the home button from the screen? Check the home button connection on the motherboard. I would check all of the connections on the motherboard and make sure no pins are damaged. Then clean all of the connections with a qtip and alcohol and a soft brush. Including the charge port connection. You could also have a issue with the audio ic. It’s a common problem with the iPhone 7. Any shop that does microsoldering repair can fix that for around 75 dollars. I would give those a try.
