iPhone 7 Microphone not working after iOS 15.7.6 Update

I have the same problem.

My phone was great until immediately after I installed the 15.7.6 update. Since then, I can no longer pick up phone calls - the audio / speaker symbol is greyed out when I make calls or receive calls. The only way I can take a call is by using Bluetooth headphones.

Additionally, at times THE PHONE HAS BEEN GETTING VERY HOT. Hey Apple, is this DANGEROUS ? Will our iPhones overheat and cause afire, or possibly explode. NYC has been experiencing many battery related fires.

Not sure how but whatever Apple did to the software they surely broke our iPhone 7s , and have possibly made a very dangerous situation.

Issue: My iPhone 7 Plus was working perfectly until immediately after I installed the 15.7.6 update. Since then, I can no longer pick up phone calls - the audio / speaker symbol is greyed out when I make calls or receive calls. The only way I can take a call is by using my Apple Watch. In addition, if I try to record a Voice Memo, nothing happens - I'm unable to record.

Triage and seeking support from Apple:

I went ahead and I did factory reset and also reset all settings, problem did not resolve.

I called Apple customer service and they mentioned that it is hardware issue and suggested me to visit apple store.

I visited apple store, and they said it is hardware related issue and asking me to pay $349 to replace whole hardware unit since they cannot replace just microphone/speaker. Touch ID button sometimes does not work. They completely ignored this.

Questions that is still unanswered:

1. If it is hardware related issue, then why did phone work before upgrading to new OS version?
2. As a customer, I am not at fault OS version compatibility. What Apple can do resolve it?
3. In the store, they mentioned that it is an issue with carrier. I swapped sim with another phone and confirmed that is not an issue with carrier.
4. No satisfactory response was given by West County Manager in St Louis MO when I mentioned. this phone stopped working after OS update.
5. Store updated OS to most recent version and problem is still not resolved.
6. I am sorry to say that it is like forcing customer to buy new phone after introducing issues in older phone with OS update. This is an unethical behavior. Can someone please help?

I also am experiencing the same problems; speaker button grayed out, microphone unable to dictate notes. I can send and receive text messages. Cellular service is working fine. When I call someone or they call me, phone rings but can’t hear the caller and they can’t hear me. I updated iOS to 15.8 and same problem; no change. I have been a loyal Apple user, this is very disappointing because now it’s going to cost me $900 for a new phone.

I have the exact problem verbatim and I’ve checked everything mentioned above. The update changed the phones ability to work. It worked flawlessly before the update. So it’s the update that has done this because logically the steps show me that. What to do next as I’m not going to pay for service to a phone I didn’t break. Please guide me. I’ve spent thousands upon thousands of dollars on apple products.

I thought my iPhone 7 was damaged somehow and led to microphone not working. This happened last July in 2023.

everything adds up now that I bumped in to this thread.

the microphone stopped working after the software update!!!

everything works okay in my iPhone 7 except the microphone and it gets hot. Typing this from my otherwise perfect iPhone 7. 😒

I have the same problem last week as soon as I updated my iPhone 7 Plus the phone stopped working I still am able to get text messages and also able to go online but no phone calls. I did go to apple store they wanted to charge me a fee to put the phone for diagnostic check but was basically told to buy another phone because that will not work

hippolyte193 wrote: "94% so the issue is not there"

Not necessarily. 94% max capacity in an iPhone 7 implies the battery has been replaced. So was that done by Apple or other qualified technician using a genuine iPhone battery?

...I ask because the article linked below says: "Using nongenuine batteries might also result in unexpected behavior after installation, device software updates...":

About genuine iPhone batteries

Repair Provider Verification - Official Apple Support

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Same with me, I took it to apple they said the phone won’t connect to their diagnostics test adapter so they just said to get a new iPhone 7 off of them for 319 when I could just get an se 3rd gen from Walmart for 150

You can downgrade by downloading an older version of the software on Piratebay.org, then connect your phone to iTunes and install the software.

Dadanmers wrote: "i update my iPhone 7 to 15.7.8. But it's still the same. now sometimes even Bluetooth audio and mic is not working..."

Dadanmers ~ Does your iPhone 7 still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

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