Nokia 1616 keypad solution

Nokia 1616 keypad solution is very useful for nokia 1616 phone.Keypad may be two type problem one of them single key dose not work and other problem is no key work.Single key not work solution is clear carbon on the keypad. And no key not work solution is view the below picture.

How to do this: If you face this problem then first clean full pcb goodly with petrol and check keypad line ways.

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