Sony Ericsson Spiro W100i,W100a Keypad Problem Jumper Ways Solution

This repair guide may help fix the Sony Ericsson Spiro W100i,W100a not working keypad problem.
This solution may works if you already cleaned the Keypad matrix and the keypad membrane but nothing happens and the keypad keys still doesn't work.

Observe the solution below for it shows the connection line paths of each particular keys of Sony Ericsson W100i and W100a phone.

SE w100 keypad jumper Ways
This solution also includes which components needs to be check and replace such as the two keypad filter IC's and 0 ohms resistors. Just locate this components on the Sony Ericsson W100i or W100a PCB board. Just check and then replace these components if found damaged.