Suppose your Service Tag is G7H3KQ2 . Type:

The Dell DMI Tool is a double-edged sword. While essential for repair, it can be misused:

Whether you’re reviving a Latitude laptop with a generic motherboard or standardizing 500 OptiPlex desktops in a school lab, mastering the Dell DMI Tool will save you hours of frustration and dozens of "Service Tag Invalid" boot errors.