I am experiencing the same issue with my iPhone 7. It started yesterday when listening to music through my wired headphones. My phone would just continue to play through the iPhone speakers as if the headphones were not plugged in. When trying to make phone calls, I cannot hear anything or speak to anyone, I cannot use Siri, and I cannot record voice memos.

I stopped by an Apple store today and they ran diagnostics and an audio test on it and my phone said it could not recognize the device when they plugged in their audio diagnostic tool. I was told that this was a "known issue with the iPhone 7's" but that Apple could not make repairs or replace my iPhone at no charge since it was outside of the warranty period. My only option was to purchase a new iPhone.

When i got back home and started trying things, I reset my phone to factory settings through settings -> General -> Reset -> Reset all settings. After this, I was able to use my headphones, hear people on phone calls, record voice memos along with all other things that were previously not functioning.

About 5 minutes later, my Phone is now cutting in and out of functionality for these features again. Sometimes it works and sometimes it doesn't.

I am very disappointed with Apple due to the fact that they communicated to me it was a known issue, yet cannot help me resolve their problem. My only option is to purchase a new iPhone, which is not something I want to do right given these phones are rather expensive.

Dec 12, 2018 2:44 AM in response to elise62

Hi,

I had the same problem with my Iphone 7 plus, when I updated the new OS 12.1. I called the apple support and it said there was a hardware failure on the microphone. I said it was very weird when both microns stopped working when I updated their new OS. Because my mom works as a technician, she called in to support, who only asked her hard-to-reset phone and then reset to factory settings. What she thinks is strange when she was clear that the phone worked before the update and wanted it to troubleshoot before she started installing it. Which is the way to do when troubleshooting problems that occur during upgrades.

When it did not work she called back and only then did a diagnostic test on the phone. According to that, the hardware problem with the microphone that the diagnosis had discovered already when the upgrade was done according to apple, is always a diagnostic test at these upgrades.

The strange thing is that the Iphone 7 has 2 microphones and what's the odds that both of the 2 microphones stop functioning at the same time ???

A micronphone will record audio in movie recording and one manages audio during phone calls.

Mom said it was a strange way to troubleshoot the problem with upgrades but they claimed it would only solve the problem with the phone.

How are they able to solve it when it's not even the troubleshooted phone before I restore it to factory settings, how are they going to get it already if it's their OS that caused the hardware failure when all the data is gone ????

I have a case with Apple Support. You others who have the same problem should require them to create the cases as it is clear in this link that their OS created a hardware failure on the phones?

It's horrible that they have only 1 year warranty on hardware, it should take more responsibility for errors that occur in connection with their updates. This is extremely bad advertising for them !! They should take more responsibility as this is an expensive product and they definitely do not take their climate responsibility and develop sustainable and quality products. Because the products do not even manage their own updates !!!!

Jan 16, 2019 11:10 PM in response to carsten64

Update: I my case this is a HARDWARE issue.

Symptoms:

+ Long booting

+ Recorder does not work”no Audio device found”

+ No Microphone function in any application (talk, Video,...)

+ Siri does not work as well

I have contacted a couple of repair shops: They all know this issue and the solution. Some have permanently sitting 30 phones in their shop for repair so this is very common!

I found a provider that will do the re-Soldering of the audio chip for about 80€ - I have send the phone yesterday to him.

If you are not sure about your device google “IPhone 7 Audio chip problem” on YouTube or Ebay and you even find detailed hardware repair videos (+all symptoms), parts and repair shops!!

Good luck!!

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IOS 12.0.1 Microphone Not Working