How to Fix iPhone Microphone Not Working

People can't hear me on my iPhone X during calls. Siri also stops responding sometimes. Is there something wrong with the microphone? — Kelly from Quora

If your iPhone microphone is not working, you may notice issues like people not hearing you during calls, Siri not responding, muffled audio recordings, or no sound in FaceTime and voice memos.

The good news is that microphone problems on iPhone are often caused by simple software glitches, incorrect settings, or blocked microphone holes. In this guide, we'll walk you through 10 effective solutions to fix the iPhone microphone not working issue quickly and easily.

Why Is My Microphone Not Working on My iPhone?

There are a few common reasons an iPhone microphone stops working — software settings, blocked mic openings, Bluetooth conflicts, or hardware damage. Let's check it together.

• 01 Dust, dirt, or blocked microphone openings: Lint, debris, phone cases, or screen protectors may partially block the microphone and affect sound quality.
• 02 Bluetooth or audio routing issues: Your iPhone may be connected to AirPods, headphones, car audio, or another external device instead of using the built-in microphone.
• 03 Software or system problems: iOS bugs, failed updates, app conflicts, or disabled microphone permissions can prevent the microphone from working properly.
• 04 Physical or hardware damage: Drops, water exposure, or internal component failure may damage one or more microphones inside the iPhone.
• 05 Network or call-related issues: Poor cellular connection or carrier problems can sometimes make your microphone seem unusable during phone calls.

Test the Microphones on Your iPhone

Before trying any fixes, you should first test the microphones on your iPhone to determine whether one or more microphones are not working properly. Make sure your fingers, phone case, or screen protector are not blocking any microphone openings during the tests.

1. Test the Bottom Microphone with Voice Memos

Open the Voice Memos app and tap the Record button. Speak into the bottom microphone for a few seconds, then play back the recording. If your voice sounds unclear or cannot be heard, the bottom microphone may have an issue.

2. Test the Front and Rear Microphones with the Camera App

Open the Camera app and record a short video using the front camera. Then play the video and check the audio quality.

Next, switch to the rear camera and record another short video. Play it back to test the rear microphone.

3. Test the Microphone with Siri

Activate Siri by saying "Hey Siri" or by pressing and holding the Side button (or Home button on older models). Ask Siri a simple question and check whether Siri responds correctly to your voice.

Fix Microphone Not Working on iPhone - 10 Methods

After testing your device and it still has issues, you can then try the following solutions to get it fixed.

Fix 1. Remove Your iPhone Case or Protector

Sometimes the microphone issue is not caused by software or internal hardware problems, but simply by physical obstruction. Many phone cases, especially thick or poorly aligned ones, and some screen protectors can partially cover the microphone openings without being obvious. When this happens, sound cannot enter the microphone properly, which leads to muffled audio or complete failure during calls and recordings.

• Step 1. Remove your iPhone case and screen protector completely.
• Step 2. Inspect the bottom, top, and rear microphone openings to make sure they are not blocked.
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• Step 3. Test the microphone using Voice Memos or by recording a short video.

Fix 2. Clean the Microphone Openings

Over time, dust and small debris can accumulate inside the microphone holes of your iPhone. This buildup is very common because the device is often kept in pockets, bags, or dusty environments. Even a thin layer of blockage can significantly reduce sound quality, making your voice sound unclear or causing the microphone to stop picking up sound altogether.

• Step 1. Use a soft, dry brush (such as a clean toothbrush) or a microfiber cloth.
• Step 2. Gently clean around the microphone openings to remove dust and debris.
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• Step 3. Avoid using sharp tools, compressed force, or liquids that may damage internal components.
• Step 4. After cleaning, test the microphone again with a call or recording.

Fix 3. Disconnect Bluetooth and External Audio Devices

In many cases, the microphone appears to be "not working" simply because the iPhone is using another connected audio device instead of its built-in microphone. This can happen automatically when AirPods, wireless headphones, speakers, or car audio systems are connected. The system may route voice input to those devices, even if you are not actively using them.

• Step 1. Turn off or disconnect all Bluetooth devices (AirPods, headphones, speakers, car systems).
• Step 2. Unplug any wired accessories if connected.
• Step 3. Temporarily disable Bluetooth in Settings.
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• Step 4. Test the microphone again using a call or voice recording.

Fix 4. Restart Your iPhone

This can be the easiest yet most efficient method to fix most simple system problems and it's quite easy to do so.

• Step 1. Press Power button (press both Power and Volume buttons for iPhone X and newer models) until you see the 'Slide to power off' slider appear. Drag the slider and turn it off.
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• Step 2. Wait for 30 seconds to let it turn off. Press the Power button until you see the white Apple logo to turn it on again.

Fix 5. Give Audio Permission for Apps

If your microphone not working only happens when you use certain apps, you can check the iPhone microphone settings to make sure that the apps have the permission to access the microphone.

• Step 1. Open your device and go to the Settings > Privacy & Security > Microphone.
• Step 2. Toggle the option to grant the permission for apps that you want to use them with the microphones.
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Fix 6. Use Mic Modes to Fix Audio

To resolve microphone quality issues, you can adjust the settings while the microphone is actually in use. This allows the system to recalibrate your voice capture based on your current environment.

• Step 1. Start a phone call or open an app like FaceTime that activates the microphone.
• Step 2. Swipe down from the top-right corner of the screen to open the Control Center.
• Step 3. Tap the Mic Mode button and select Voice Isolation to prioritize your voice or Standard to reset the processing.
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Fix 7. Update iOS to the Latest

Your iPhone microphone not working on calls may be fixed on a newer update by the Apple developer, so make sure your device has updated to the latest iOS version.

• Step 1. Open your iPhone and go to the Settings > General > Software Update.
• Step 2. Press on the Update Now button to download and install the update on your iPhone if there is an available one.
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Fix 8. Reset All Settings

If you once changed the settings of your iPhone microphone settings, and this may cause the microphone not to work. So try this method if the aforementioned tips can't fix the problem.

• Step 1. Open the Settings app on your iPhone and navigate to the General > scroll down to select Transfer or Reset iPhone > Reset > Reset All Settings.
• Step 2. Enter your password and hit the Reset All Settings again option to confirm the action.
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Fix 9. Fix Microphone Not Working on iPhone without Data Loss

After tried all the solutions above, but your microphone problem still exist, you can then try the last resort. That is, use a professional third-party iOS repair tool named TunesKit iOS System Recovery to fix your iPhone microphone not working issue efficiently.

This smart utility will help you fix various iOS system problems on the iPhone, iPad and iPod touch, including microphone not working, Siri not working, iPhone stuck in recovery mode, stuck on Apple logo, blue screen, etc. Most importantly, TunesKit iOS System Recovery will 100% fix the problem while keeping data on your device. The repairing process is easy.

Step 1. Download and install TunesKit iOS System Recovery on your computer and connect your iPhone to the computer with a USB cable. Select the iOS System Repair button on the main interface, and click the Start button to continue.

Step 2. Select Standard Repair to fix microphone problem without data loss.

Step 3. Confirm your device information and make sure it's all correct. Then press the Download button to download the iOS firmware package and verify it.

Step 4. When the download is done, click the Start Standard Repair button to start fixing microphone not working on iPhone problem with TunesKit.

Fix 10. Erase All Content (Data Loss)

If resetting the settings of your device doesn't work, this time you can try to erase your iPhone. This will reset all of iPhone settings, but also erase the apps and content. Hence, we recommend backing up your data before taking this method.

• Step 1. Go to the Settings > General > Transfer or Reset iPhone > Erase All Content and Settings.
• Step 2. Tap the Continue button, and enter the right passcode and tap the Erase iPhone option to continue the process.
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Conclusion

In most cases, the iPhone microphone not working issue can be resolved with a few simple troubleshooting steps, such as cleaning the microphone, disconnecting Bluetooth devices, or updating iOS. If the problem is caused by software glitches, professional iOS repair tools like TunesKit iOS System Recovery can also help restore your device to normal without data loss. If none of the methods work, the issue may be hardware-related and require professional repair.