Why the sound is Broken Irregularly and call volume is Low or Muted in Smart phone?

Last Update Date : Mar 25. 2018
1 Please check whether you attach Samsung-unapproved protect accessories covering perfectly all parts on Galaxy Note8 device’s back.
2 Some of Samsung-unapproved protect accessories like films, covers, vinyl which attach on device back side cover even Camera, Flash, HRM sensor and this causes to block the Air Path (Air vent hole) inside the device. Due to blocking of Air Path (Air vent hole), receiving sound is not heard clearly or broken irregularly, and volume may be also low.

Note: Please do not use Samsung-unapproved protect accessories covering Camera, Flash, HRM sensor. Especially, as this symptom can also appear when protect vinyl or film cover on a little bit of Camera Deco, be careful that the protective vinyl or film does not cover on any parts of the Camera Deco. 

Air Path is placed on up and down part of rear camera

Why the sound is Broken Irregularly and call volume is Low or Muted in Smart phone?

Be careful that the protective vinyl or film does not cover on parts of the Camera Deco where Air Path is placed.

Why the sound is Broken Irregularly and call volume is Low or Muted in Smart phone?

If call volume is low or muted, there are the following reasons: 

1 Please check whether protector films cover receiver part on device front side or not. Also if you had ever attached any adhesive glue for window glass protection, adhesive glue might flow into receiver part during process.
2 If the device has been immersed in water or speaker is wet, sound may not be heard clearly during a call because water may get in the speaker hole during exposure underwater. please wipe device smoothly with a dry, soft cloth and keep putting during certain period of time to dry it thoroughly before using device.

Additionally for faster drying of water from speaker, it will help that you hold the device while speaker of device is facing down and shake device smoothly a few times to remove remaining water. Despite this, when some moisture remains on Mesh in front speaker, sound may not be still heard clearly. At this time, as this moisture can be also removed by speaker vibration during call, please check the device’s sound state while making call for a period of time. 

Note: If you are still having trouble with the sound after trying these tips, please contact a Samsung Service Centre with device.

Be careful that protect film does not cover Mic hole

Why the sound is Broken Irregularly and call volume is Low or Muted in Smart phone?

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