if Nokia Asha 311 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 damages.so to solve this issue in Nokia Asha 311 look at diagram bellow and check all these components and parts.these parts are used in Microphone function in Nokia Asha 311.


once you have dis assembled mobile phone look at board vary carefully and check if there is some rust or carbon.Clean
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 parts.so check these components and paths with electronics miter and if path missing apply jumpers.
Because mic is attached with board so you can remove it with solding iron by applying much solder on mic and then slip it once it is too hot.And use new mic to fix mic problem in Nokia Asha 311.

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