My microphone not working in iPhone 7

Hi there, sherin143! Thanks for reaching out to Apple Support Communities. 

After reviewing your post, it sounds like you are looking for some help with your iPhone microphones. We definitely understand that can be a concern and we'd love to help. Let’s start by reviewing this article: If the microphones on your iPhone aren't working.

Please let us know if you have follow-up questions about this issue, or if the issue remains unresolved. Have a great day!

There are a lot of Iphone 7 users reporting the same issue after the last update on there phones. Basically until apple acknowldges this issue all you can do is completely reset your phone and hope that fixes it or go buy a newer version.

Its not fixing the issue. Apple needs to release a new update with a bug fix ASAP