Audio ic problem in iPhone 7
Is Apple replace my iPhone 7 having audio ic problem or Apple repair it for free?
Question marked as
Manufacturing defect in first 12 month may be free of charge if a manufacturing fault.
After that first year, if it is a failed chip it will be a replacement phone. The price is in the article.
https://support.apple.com/iphone/repair/service
This does not replace your local consumer rights.