How to increase mic volume of Lenovo A6000?

I bought lenovo A6000 mobile 5months back it was working gud.but now the volume level was decreased.when i make a call the opposite party was not able 2hear my voice clearly.can any 1help me?




I brought lenovo a 6000 mobile 12 Month back it was working gud.but now the volume level was descreades .when I make a call the opposite party was not able 2hear my voice clearly. Can any 1help

I bought lenovo A6000 mobile 13 months back it was working gud.but now the volume level was decreased.when i make a call the opposite party was not able 2hear my voice clearly.can any 1help me?



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