Before configuring the units, Siriusware, Inc. recommends that you charge the batteries for at least four hours. Familiarize yourself with the operations of the mobile computers from the manual. Power on the systems and follow the instructions for calibrating the touch screen.

On the MC9090-G units, the keyboard appears when it is necessary to enter text. Alternatively it can be brought up by tapping the keyboard icon in the bottom right corner. The MC9090-G unit also has a physical keyboard. The MC5590 unit provides a keyboard icon on the bottom of the screen in the center.