Nokia 111 have mic problem our voice can not reach to destination and we can not record voice in it.mic problem can be reason of parts damages or carbon rust and water to solve this issue in Nokia 111 look at diagram bellow and check all these components and parts.these parts are used in Microphone function in Nokia 111.
Nokia 111 Mic Problem Solution Jumpers Diagram
these parts and area with electronics cleaner and leave it to dry for a few mints with hot air.In above diagram all tracks are given in red and blue colors.these tracks show positive and negative paths of mic check these components and paths with electronics miter and if path missing apply jumpers.

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