My nokia is lumia 630 dual sim - my problem is call volume (volume when you are on the talk) is not reducing it is always high. Even while in the call mode i press the volume down key button and it shows in display it reduces but in reality the volume is still high. What should I do? Any suggestion. Please I have not drop or done anything to it. It is only 3 days I have used my phone in other it is absolutely new.
