Nokia 2690 Mic Problem solution ways jumpers.

if you have a mic problem in cellphone nokia 2690. not voice is going to the destination mobile or low voice goes to the destination cell phone then you can solve this problem with help of these few steps and with this diagram. in first step check mic with multimeter.

and then in second step check mic points on the board if at board you can see connectivity and value is good then here can be attachment problem between mic and board.