Unlike modern cellular cards, the Qualcomm Gobi2000 chip is "blank" when your PC boots. It requires the Windows driver to actively inject carrier-specific firmware into the module every single time the system powers on. If the driver lacks a proper initialization tool built for Windows 10, the firmware injection fails, leaving the card unusable.
How to Install and Update the HP un2420 Mobile Broadband Module Driver on Windows 10 hp un2420 mobile broadband module driver windows 10 upd
: This often means the driver is installed but the device failed to start. Try disabling and re-enabling the device in Device Manager. Unlike modern cellular cards, the Qualcomm Gobi2000 chip
Here’s a step-by-step guide to get the mobile broadband module working on Windows 10 (64-bit). This module uses Qualcomm’s Gobi 2000 chipset, which lacks official HP drivers for Windows 10, but a modified driver from the Lenovo ThinkPad Gobi 2000 package works reliably. How to Install and Update the HP un2420