What's wrong with my speaker of smartphone

  tanran 10:14 16 Oct 14

Hello, I have a vivo smartphone, which has very nice voice effect. But these days, there are something wrong with its speaker. I can still listen to music, but when i answer the call, the speaker will not work at all. Is there anybody could analyze what the problem is? so that i could put forward my problem to official vivo website and ask for substantial support. Many thanks for your help.

  matt2000 13:17 16 Oct 14

Ring yourself from another phone and turn the volume up, some phones have different volume settings for calls and music

  tanran 11:54 21 Oct 14

Thanks for your kindly help. I will follow your suggestions and try to study this.

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