Q: my iPhone 6 the video sounds.

Test your microphone: Get help with the microphones on your iPhone, iPad, and iPod touch - Apple Support

If it appears to be functioning, double tap the home button and swipe the camera app upwards. Then hold the sleep/wake and home button until the Apple logo appears. Try the video again. -AJ

Chelfromrockville wrote:

 

I Try but is not working...thanks

What part is not working? The microphones?

You likely have debris in the receiver mesh / front mic.

Make a genius bar appointment.

See if it can be brushed out.

If not the display would have to be replaced.

You would need to pay for it if it is indeed debris as it is not included in the warranty.

If its in the us, a display replacement is 109