Many iPhone 6 users reported this issue. iPhone 6 microphone works good when calling. But when user changed it to speaker mode, the person on the other side cannot hear.
Fix 1: Remove the factory cover
Remove the factory cover (original plastic cover – back of phone in between flash and camera ) which is comes with iPhone 6.
Fix 2: Use Toothpick
Use toothpick and turned it around in Circles inside the edge of the hole. Then use your lungs to suck whatever it was blocking the sound out from the mic.
Fix 3: Reboot iPhone
Press and hole the Home button and sleep button together until apple logo appears.
SEE ALSO : How to Fix iPhone 6 Plus Volume Problems
Fix 4: Turn off and on Siri. Turn off phone noise cancelation
- Navigate to Settings -> General -> Siri and first turn off “Allow Hey Siri”. Then turn off Siri.
- Now go to Settings -> General -> Accessibility and turn off “phone noise cancelation”.
- Scroll down and select”headset” under “Call Audio Routing”. When making or answering a call select speakerphone as usual.
Fix 5: Contact Apple care
First check your iPhone 6 warranty status. If its under warranty take it to nearest Apple care.
If you knew any other solutions to solve iPhone 6 mic not working problem, inform us via comment.