Here's the solution for nokia X2-02 with a not working keypad problem. This solution shows the location of the keypad filter ic on nokia X3-02 PCB board.
If the keypad flex is not damaged or already tried replacing it but the keypad still doesn't respond when pressed, you may need to replace the keypad filter IC showed on the following solution below.
Nokia X3-02 keypad problem repair solution
If the keypad flex cable wire is not damaged, replacing the keypad IC may possibly help fix and solved the Nokia X3-02 with a not working keypad problem.
