Step 1: Check What App Is Using the Microphone
Swipe down from the top-right corner of your screen to open the Control Center.
Look at the top of the screen; it will display the name of the app or system feature currently using your microphone. [1]
Step 2: Disable Accessibility Features That Keep the Mic On
Certain background accessibility tools require an active microphone to listen for triggers: [1]
to Settings > Accessibility. [1]
Check and disable these features if you do not need them:
Vocal Shortcuts
Sound Recognition
Voice Control
Live Captions [1]
Step 3: Restrict App Permissions
If a third-party app is keeping the microphone active:
Go to Settings > Privacy & Security > Microphone.
Toggle off access for any apps you do not want using your microphone. [1]
Step 4: Force Restart Your iPhone
If a background process is stuck, force restart your device: [1, 2]
Press and quickly release the Volume Up button.
Press and quickly release the Volume Down button.
Press and hold the Side/Power button until the screen goes black and the Apple logo appears, then release. [1]
If you checked the Control Center, which app or feature was listed at the top?