Right-click the Windows Start button and select . Expand the Network adapters section. You should see: HP un2420 Mobile Broadband Module Expand the Ports (COM & LPT) section. You should see: HP un2420 Mobile Broadband Management Port HP un2420 Mobile Broadband Diagnostic Port
Because Hewlett-Packard (HP) never engineered a native, standalone Windows 10 driver for this aging hardware, standard automated update tools will fail to locate or apply the necessary files.