My nokia 3310 data cable was not working. I opened its phone side connectors and found that the cable wires has detached from the pins. There are 4 pins but only 3 wires from the cable(white, red and yellow). I know the 4 pins are Mbus, GnD, TX and Rx, but whrer to solder the 3 wires is confusing me.

My problem is that I found the three wires detached from the pins. Now I want to solder these wires to the pins. Where (to which pin ) connect Red, yellow & white. Is one of these pin is left unconnected or any two pins are shorted together.(Actually 4pins & 3 wires). I found only red wire connected to GND pin. Where to connect other two wires.

The other end of cable is 9 pin D-type female serial connector.
Any help is welcome.
Thanks.