--- title: "How to Fix Microphone Not Working During Calls | FixFix Labs" description: "People can't hear you during phone calls. 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[All Guides](/device-troubleshooting) 2. [Phones](/device-troubleshooting?category=phone#problems) 3. Microphone Not Working During Calls Phones audio # Microphone Not Working During Calls ## Quick Answer Microphone problems can be caused by case obstruction, software issues, or hardware failure. Please note: This guide is provided for informational purposes only. Any steps you choose to follow are at your own discretion and risk. If you're unsure, we recommend booking a professional diagnosis. Line illustration of a smartphone with diagnostic reference markings, overlaid with a speaker waveform trace Phone — illustration On this page - [Quick Checks](#quick-checks-heading) - [Guided Troubleshooting](#diagnostic-heading) - [Possible Causes](#possible-causes-heading) - [Self-Fix Instructions](#self-fix-heading) - [Safety Warnings](#warnings-heading) - [When troubleshooting isn't enough](#next-steps-heading) ## Quick Checks Try these fast checks first — they solve most cases. 1. Remove the phone case Some cases block microphone openings. 2. Check microphone permissions Ensure the calling app has microphone access. 3. Clean the microphone Gently clean microphone openings with a soft brush. 4. Restart the phone A glitch may be disabling the microphone. 5. Test with voice recorder Record your voice to test if the mic works outside calls. ## Guided Troubleshooting Answer these questions to narrow down the issue. Does the microphone work in voice recordings? YesNo Can people hear you on speakerphone? YesNo ## Possible Causes Case blocking microphone Very Common Cases can cover or muffle microphone openings. Software glitch Common A bug preventing microphone activation. Debris in microphone Common Dust blocking the opening. Microphone hardware failure Moderate The component may need replacement. If the cause requires professional attention, see [Phone speaker issue repair options](/repair/phone/speaker-issue). ## Self-Fix Instructions Safe steps you can try at home. 1. ### Microphone testing 1\. Remove your phone case. 2. Open a voice recorder app. 3. Record and play back. 4. If it works, the issue may be network-related. 5. Clean microphone openings with a soft brush. ## Safety Warnings - Do not poke the microphone opening with sharp objects — you can puncture the membrane. ## When troubleshooting isn't enough If these steps didn't resolve the issue, a professional diagnosis can identify the root cause. [Start Diagnosis ](/diagnosis?category=phone&issue=speaker-issue)[Phone speaker issue repair options ](/repair/phone/speaker-issue) ### Still need help? FixFix Labs repairs devices in Luton. Walk in to 159 Marsh Road, Luton, LU3 2QL — or book a slot online. Same-day service on most common repairs. 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