To that end, Apple has since launched a repair program targeting the iPhone 12. According to Apple, “Apple has determined that a very small percentage of iPhone 12 and iPhone 12 Pro devices may experience sound issues due to a component that might fail on the receiver module. Affected devices were manufactured between October 2020 and April 2021.”
They do not state how many devices are a “small percentage”, but it must be significant enough for the company to consider launching such a program. Do note that this only seems to be affecting iPhone 12 and iPhone 12 Pro devices, which means that the iPhone 12 mini and the iPhone 12 Pro Max shouldn’t have a problem.
The repairs will be free and all users need to do is send their devices in to an authorized repair shop (or back to Apple) and they’ll get it sorted.