LAUNCH X-431IV English User’s Manual184. Update of Diagnostic SoftwareThe X-431IV comes preloaded with the software that was available at the time of the unit’s production.This software may be several versions behind what is currently available on the Internet, but you canupdate the X-431IV through the Internet.Hardware Requirement:1. A computer that can access the Internet.2. A CF card reader/writer and a CF card that need to be updated. Insert the CF card into the CF card reader/writer. Connect one end of the USB cable to the port of the CF card reader/writer, and the other end tothe USB port of the computer.4.1 User RegistrationLog on http://mycar.dbscar.com/pad/. Select [X-431 IV] from the [Products] pull-down menu to enterthe X-431 IV homepage.Figure 4-1Click “Users” in the interface as shown in Figure 4-1 to enter the login screen.4.1.1 Register a passportIf you have not registered a passport, please follow the steps described as below:Click [Register now] to enter the user registration interface as indicated on Figure 4-2.