A pple cfirmed that he was aware of a known problem with the pickups some iPhone 7 and 7 Plus models running iOS 11.3 or later.
According to testimials, the bug can cause problems of hearing users. or FaceTime calls after the installati of iOS 11.3 iPhone 7 devices. In additi, it can also affect the speaker feature – resulting in a gray butt the screen of the iPhone .
Technology giant Cupertino sent an internal support document to authorized service providers guiding repair persnel to diagnose the problem. ] Repair persnel are asked to discnect all audio accessories from the affected iPhones. Apparently, this may alleviate some of the reported cases of this problem (in other words, you should try this at home if your iPhone 7 or 7 Plus is acting strangely in the calls.)
If the butt speaker remains dimmed, the diagnostics can be run. An affected device may display an alert "device can not detect dock" or "unsupported accessory". ce the technicians detect the problem, they can make the appropriate repairs.
It should be noted that Apple is asking repair technicians to make an excepti for appliances affected by this problem if they are not covered by the warranty. Although we can not cfirm that the repairs will be free (the document does not specify), it seems likely.
The problem does not seem particularly prevalent, but a number of complaints have surfaced various support forums and media sites such as Reddit and Twitter . It's not easy to know what the problem is or the total number of devices and users involved, but it's interesting to know that something in the iOS 11.3 update could cause some material problems.
but the fact that he sent an internal service document cfirms that it is about a known problem with a way of repair.
How to Resolve Microphe Problems
As mentied earlier, if you have microphe problems your own device, try discnecting all Bluetooth audio accessories.
If the problem persists, you must make an appointment at a Genius Bar or Apple Authorized Service Provider.
Go to this page, select