To use any Motorola phone as a modem. you need to USB data cable or Motorola phone tools.
Follow the steps:
1. Install the MPTs.
2. connect USB data cable to your mobile and computer
3. Now start MPTs. it will find your modem automatically and will show on your computer
4. Start internet connection
5. add new connection and enter necessary information.it will connect to the internet
6. if any problem occur restart and try again.If not fixed, go to menu->setting->connect different mobile
7.Again it will reload your phone profile then start the internet connection.
you also connect by using tethering and portable hot spot setting.