Look.. The DB9 connector should NOT be connected in ANY way with ANYTHING but the COM1 port on the computer. And on the DB9 you should just connect pin 2 with pin 3.. just solder a cable between them or whatever so that they are connected to eachother.

How to use it:

Connect it on COM1 before you start winimei. Start winimei, choose your country and press OK. Then press unlock. If you run something in winimei besides unlock like read settings to check the connection is working then quit winimei and disconnect the DB9. Then reconnect it and start winimei again.

The usb cable should be connected all the time. Make sure you have installed the usb/modem drivers first.