How to fix an iPhone 7 Plus microphone that stopped working after iOS 11.3 update (easy steps)

If your iPhone microphone is not working, then there are two possible reasons you should consider looking into. It may be attributed to a software problem if not hardware damage. Nevertheless, for an iPhone 7 Plus microphone that suddenly stopped working after installing a new update to iOS like the iOS 11.3 or 11.3.1, it’s apparently tied to a faulty software most likely an update bug or glitch. You may therefore attempt to troubleshoot and fix the problem on your end in this case.

Before going any further though, if you have other concerns with your new iPhone, make sure you drop by our iPhone 7 Plus troubleshooting page for we have already started supporting the device. Moreover, if you need further assistance, you can always contact us by completing our iPhone issues questionnaire and providing us with sufficient information about the problem.

How to troubleshoot iPhone 7 Plus with microphone that’s not working

Before you begin troubleshooting software errors that might have caused the microphone to stop working on your iPhone 7 Plus, try to carry out these subsequent procedures to further test your iPhone microphone.

  • Record and play audio using Voice Memos. Open the Voice Memos app and then record your voice. Be sure to speak into the microphone clearly. When you’re done recording, play it back and see if you can hear your recording clearly.
  • Test microphone using Siri. You can also use Siri to test the microphone on your iPhone. To do so, open the Siri app and then say something. Be sure to utter your words clearly so that Siri will be able to grasp and comprehend. If Siri responds accordingly, then your iPhone microphone is working. Otherwise, something is wrong that needs to be fixed. It could be an issue on the software or hardware components.

The next thing you should do is to check and ensure that nothing is blocking the iPhone receiver. Do so if your iPhone microphone sounds faint  when using speakerphone during phone calls. Also try to remove any third-party accessories or casing as they may also affect the microphone’s sound quality. Other accessories can even prevent you from hearing the microphone sound at all.

Once you’ve done all these requisites and still the microphone is not working as intended or not functioning at all, you can now start troubleshooting software issues that might have inflicted trouble when using your iPhone 7 Plus microphone.

First solution: Reboot your iPhone (soft reset).

Minor software glitches from an update that caused your iPhone’s audio/microphone functions to become a bit erratic are usually dealt with be a soft reset or device restart. So if you haven’t restarted your iPhone yet, do so with these steps:

  1. Press and hold the Power button for a few seconds until the Slide to Power Off prompt appears.
  2. Drag the slider to power off your iPhone completely.
  3. After 30 seconds, press and hold the Power button until the Apple logo appears.

Wait until your iPhone boots up then try to test the microphone again. No data is affected in the process so everything remains intact.

Second solution: Check and enable microphone access to your apps.

If the microphone does not work only when using certain apps but not all, then it’s possible that microphone access for that app has been denied or disabled. To check and ensure this isn’t the cause, here’s what to do then:

  1. Tap Settings.
  2. Scroll to and select Privacy.
  3. Tap Microphone.
  4. Then tap to allow microphone access to all or specific apps.

There may be some slight variations on the menu options depending on the current iOS version your iPhone is running on.

Third solution: Update iOS (if applicable).

If the iOS update you’ve installed was iOS 11.3, then try to check if iOS 11.3.1 is already available on your device. It was officially pushed last week of April to iPhone 5s and later variants so most likely it’s already available via OTA update on your device as well. To check if the new update is available, check your iPhone with these steps:

  1. Tap Settings.
  2. Tap General.
  3. Tap Software Update.

If available, backup your data and follow the onscreen prompts to download and install update. It contains security enhancements so if the microphone problem you’ve got from the previous update is due to a bug, then that should be addressed by the new version.

Fourth solution: Reset all settings.

Resetting all settings on your iPhone can possibly fix the problem if it’s triggered by invalid or incorrect settings. Some updates may tend to override your settings, which may cause adverse outcomes. To rule this out, reset all settings to the original or default values with these steps:

  1. Tap Settings from Home.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select the option to Reset all settings.
  5. Enter your device passcode when asked.
  6. Tap the option to confirm settings reset.

You will need to reconfigure or enable Wi-Fi, Bluetooth, and other features to use them again on your iPhone.

Fifth solution: Master reset/Factory reset.

A full system reset might be the key to fixing the problem if it’s triggered by some complex system errors from the update. This will wipe everything out from your phone system including any bugs or erratic settings and restore the factory default values. All your personal data and information will likewise be deleted though. If you wish to try it, then back up your data and then follow these steps when you’re ready:

  1. Tap Settings from Home.
  2. Tap General.
  3. Scroll to and tap Reset.
  4. Select the option to Erase all content and settings.
  5. Enter your device passcode, if prompted.
  6. Tap the option to confirm master reset.

Alternatively, you can reset or restore your iPhone 7 Plus through iTunes on a computer. To do so, you will need to use a computer with the latest version of iTunes software. Wait until your iPhone resets and reboots completely. By then you can proceed with the initial device setup.

Seek more help

Contact Apple Support to report the issue if your iPhone 7 Plus microphone is still not working after exhausting all possible means to fix the problem on your end. Doing so will let them assess the issue and if necessary, list it among other priority issues to address in the next software update. Alternatively, you can take your iPhone to an authorized service center and have it checked by an Apple technician instead. Doing so will help you rule hardware damage out from the probable causes.

Connect with us

If you need more help with the use of certain functions and features of the new Apple iPhone 7 smartphone, feel free to visit our Tutorial Page. There you can find a list of how-to contents, step-by-step tutorials, as well as answers to FAQs regarding iPhone 7. If you have other concerns or encountered some troubles while using the phone, you can reach us through this form. Just be sure to tell us more details of the problem or device issue(s) you may have and we will be more than happy to assist you further.

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