If you have sound issues on an iPhone 12 or 12 Pro Apple will fix for free

Third-Party Posts
Summary
A phone that doesn’t play sound properly during calls isn’t much of a phone at all. This is unfortunately happening to some iPhone 12 devices, but Apple will fix it for free.
The company posted a new page to its support website advertising a free service to fix phones with busted sound hardware. Specifically, it’s for a “small percentage” of iPhone 12 and iPhone 12 Pro models manufactured between Oct. 2020 and April 2021. Apparently, some phones fitting that description have faulty components causing sound to not come through the receiver during phone calls, and Apple is offering to fix it without touching your bank account.
- Source: Mashable
- August 29, 2021