Apple Acknowledges Microphone Issue With Some iPhone 7 and 7 Plus Models on iOS 11.3 and Later [Updated]

Apple has acknowledged a microphone issue affecting a limited number of iPhone 7 and iPhone 7 Plus models running iOS 11.3 or later.

iphone 7 call
In an internal document distributed to Apple Authorized Service Providers this week, obtained by MacRumors, Apple said affected customers may experience a grayed-out speaker button during phone calls. The issue may also prevent affected customers from being heard during phone calls or FaceTime video chats.

Apple Authorized Service Providers have been instructed to first ask customers to disconnect or power off any Bluetooth headsets or other audio accessories connected to their iPhone to see if that alleviates the problem.

If the speaker button remains grayed out during a call, the service providers have been instructed to run audio diagnostics. Affected devices will display a "device could not detect dock" or "accessory not supported" alert in the diagnostic pane, in which case the service provider can initiate a repair for the iPhone.

If an affected iPhone 7 or iPhone 7 Plus is no longer covered by warranty, Apple says its service providers can request an exception for this particular issue. Apple's document does not specify if the repairs will be completed free of charge, but it seems likely given the circumstances.

While this does not appear to be a widespread problem, there are have been some complaints about microphone issues on iOS 11.3 scattered across MacRumors, Reddit, Twitter, and the Apple Support Communities in recent months.

It's unclear why iOS 11.3 and subsequent software versions are unintentionally disabling microphones on some iPhone 7 and iPhone 7 Plus units. Apple mentions that some of the devices may require a repair, suggesting the software update could somehow be causing a hardware defect, but information is lacking.

Affected customers can schedule an appointment with an Apple Authorized Service Provider or with the Genius Bar at an Apple Store via the Contact Apple Support page: iPhone → Repairs & Physical Damage → Unable to Hear Through Receiver or Speakers → Built-in Speaker → Bring In For Repair.

Apple has not confirmed this issue publicly, but MacRumors has verified the document's authenticity with a reliable source. However, outside of our control, some Apple employees may be unaware of or deny the information. In that event, we recommend escalating your case to a senior AppleCare advisor if possible.

MacRumors has reached out to Apple for clarity on this issue. If and when we hear back, we'll update this article.

Update: Apple appears to have stopped offering that exception as of mid July 2018.

Related Forum: iOS 11

Popular Stories

M5 MacBook Pro

Apple Announces New 14-Inch MacBook Pro With M5 Chip

Wednesday October 15, 2025 6:07 am PDT by
Apple today updated the 14-inch MacBook Pro base model with its new M5 chip, which is also available in updated iPad Pro and Vision Pro models. In addition, the base 14-inch MacBook Pro can now be configured with up to 4TB of storage on Apple's online store, whereas the previous model maxed out at 2TB. However, the maximum amount of unified RAM available for this model remains 32GB. Like...
Apple iPad Pro hero M5

Apple Debuts New iPad Pro With M5 Chip, Faster Charging, and More

Wednesday October 15, 2025 6:16 am PDT by
Apple today announced the next-generation iPad Pro, featuring the custom-designed M5, C1X, and N1 chips. The M5 chip has up to a 10-core CPU, with four performance cores and six efficiency cores. It features a next-generation GPU with Neural Accelerator in each core, allowing the new iPad Pro to deliver up to 3.5x the AI performance than the previous model, and a third-generation ray-tracing ...
maxresdefault

Here's Everything Apple Announced Today

Wednesday October 15, 2025 3:54 pm PDT by
We didn't get a second fall event this year, but Apple did unveil updated products with a series of press releases that went out today. The M5 chip made an appearance in new MacBook Pro, Vision Pro, and iPad Pro models. Subscribe to the MacRumors YouTube channel for more videos. We've rounded up our coverage and highlighted the main feature changes for each device below. MacBook Pro M5...
iphone air thickness

Apple Said to Cut iPhone Air Production Amid Underwhelming Sales

Friday October 17, 2025 8:29 am PDT by
Apple plans to cut production of the iPhone Air amid underwhelming sales performance, Japan's Mizuho Securities believes (via The Elec). The Japanese investment banking and securities firm claims that the iPhone 17 Pro and iPhone 17 Pro Max are seeing higher sales than their predecessors during the same period last year, while the standard iPhone 17 is a major success, performing...
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...
Vision Pro M5 Announcement

Apple Updates Vision Pro With M5 Chip, Dual Knit Band, and 120Hz Support

Wednesday October 15, 2025 6:14 am PDT by
Apple today updated the Vision Pro headset with its next-generation M5 chip for faster performance, and a more comfortable Dual Knit Band. The M5 chip has a 10-core CPU, a 10-core GPU with Neural Accelerators, and a 16-core Neural Engine, and we have confirmed the Vision Pro still has 16GB of RAM. With the M5 chip, the Vision Pro offers faster performance and longer battery life compared...
14 inch MacBook Pro Keyboard

New 14-Inch MacBook Pro Has Two Key Upgrades Beyond the M5 Chip

Thursday October 16, 2025 8:31 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro base model with an M5 chip, and there are two key storage-related upgrades beyond that chip bump. First, Apple says the new 14-inch MacBook Pro offers up to 2× faster SSD performance than the equivalent previous-generation model, so read and write speeds should get a significant boost. Apple says it is using "the latest storage technology," ...
MacBook Pro M5 Screen

New MacBook Pro Does Not Include a Charger in the Box in Europe

Wednesday October 15, 2025 6:59 am PDT by
The new 14-inch MacBook Pro with an M5 chip does not include a charger in the box in European countries, including the U.K., Ireland, Germany, Italy, France, Spain, the Netherlands, Norway, and others, according to Apple's online store. In the U.S. and all other countries outside of Europe, the new MacBook Pro comes with Apple's 70W USB-C Power Adapter, but European customers miss out....
airpods max 2024 colors

AirPods Max 2: Everything We Know So Far

Tuesday October 14, 2025 8:43 am PDT by
Apple's AirPods Max have now been available for almost five years, so what do we know about the second-generation version? According to Apple supply chain analyst Ming-Chi Kuo, the new AirPods Max will be lighter than the current ones, but exactly how much is as yet known. The current AirPods Max weigh 0.85 pounds (386.2 grams), excluding the charging case, making it one of the heavier...
macbook pro blue

Apple's M5 MacBook Pro Imminent: What to Expect

Tuesday October 14, 2025 4:35 pm PDT by
Apple is going to launch a new version of the MacBook Pro as soon as tomorrow, so we thought we'd go over what to expect from Apple's upcoming Mac. M5 Chip The MacBook Pro will be one of the first new devices to use the next-generation M5 chip, which will replace the M4 chip. The M5 is built on TSMC's more advanced 3-nanometer process, and it will bring speed and efficiency improvements. ...

Top Rated Comments

RobaxMan Avatar
97 months ago
They acknowledge it but don’t allow downgrading, only 11.3.1 signed
Hmm
I'm seeing a spike in X sales!
Score: 7 Votes (Like | Disagree)
HacKage Avatar
97 months ago
Not entirely sure whether it is software related, or whether it's more down to phones being of a certain age. The iPhone 7 is riddled with Audio IC problems due to a weakness on the PCB akin to the touch issues seen on the iPhone 6 Plus. The company I work for have a queue of iPhone 7 with Audio IC faults at least 10 deep every single day. I would say this is a more common issue than the iPhone 6 Plus touch issues purely down to the amount of repairs we are seeing booked in.

Save this comment for the future, because I guarantee it that Apple will be forced to offer a repair program for iPhone 7 series with audio issues.
Score: 6 Votes (Like | Disagree)
MrGuder Avatar
97 months ago
And how many people are going to say OK that's the last straw let's upgrade to the iPhone X, win-win for Apple.
Score: 5 Votes (Like | Disagree)
Bacillus Avatar
97 months ago
Well, it's not even about testing for everything in this kind of scenario, but finding devices that might be affected by something when the vast majority of the same type of devices don't seem to be.
OMG it might take 10 guys 30 seconds to test voice quality on each possible device
Score: 3 Votes (Like | Disagree)
yaxomoxay Avatar
97 months ago
I think the most common answer I've seen on these threads is that they can't possibly test for everything BUT one wonders if they only test the new release by powering off/powering on?
I’d say that destroying the mic, requiring a physical fix, is quite a big thing to miss during SQA...
Score: 3 Votes (Like | Disagree)
apolloa Avatar
97 months ago
What a surprise they broke something else..

I do hope they haven’t been using this bug as an excuse not to replace throttlegate batteries!!
Score: 3 Votes (Like | Disagree)