Nokia TA - 1174 Keypad Solution Jumper (Star (*), Zero (0), Ash (#) Button Not Working)

This is Another challenges technicians/phone users are having now, the problem normally occur when the phone fall into the water, but there is no big deal in solving this problem, all you need to do is to use your digital/analog multimeter to trace or read where is not working in the keypad. After you have traced it, then trace where it is connected to and use your jumper wire to connect it or connect where there is circuit breakage. 

Example :