Although the call is no longer the most commonly used feature on smartphones, if this basic function is a problem, it will always be very troublesome. Recently, Apple acknowledged that some of the iPhone 7 series speakers will cause problems during the call.
In the outgoing internal file mentioned that there is a small part of iPhone7 or 7plus when using FaceTime for video calls or general calls when using iOS 11.3 or below, the speaker button will become gray and can not be used. This phenomenon is In the past few months, useful homes have been discussed online. Now that Apple issues this file to an authorized repair shop, it means that Apple has acknowledged the existence of the problem.
The document suggests that users who have problems should first close the connection between the Bluetooth device and other accessories. If it is still not possible to use the speaker, you need to perform a sound diagnostic tool. If problems are found, you can start repairs. However, the document does not mention that this is The software is still a hardware problem. This issue is a special issue recognized by Apple. Even if the phone has been out of warranty, it can be repaired for free. For the time being, Apple did not respond positively. There is no relevant information on the official website. There are similar problems. The owner, may wish to ask the Apple Store for details.
