as you can see in diagram above there are a few color lines that are defining tracks and parts that are used in speaker function in Nokia 5230.Change speaker and check speaker points on mother board if they have a good value.
if meter do not show any value then there can be broken path or parts so apply jumpers for path and replace components if any of them is missing or broken as shown in above diagram to solve Nokia 5230 earpiece speaker problem solution tested.
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