Nokia 1200 keypad solution

This is the Nokia 1200 keypad problem solution picture.Keypad is important thing for every phone.Every phone is Vain without keypad.Keypad damage in any phone in any time.So It repairing solution is very necessary.Today I shown ho to repair it.

How to do this work : When nokia 1200 keypad is not work or some key work or invalid work then first open phone next open keypad sticker and check all keypad, if you see keypad  is effect by rust then clean keypad with petrol.If you see all keypad is very good but problem still then check keypad ic first rehot keypad is and see result,if problem still then replace keypad ic.