HP officially ended support for this module with Windows 7/8 (32-bit only). When Windows 10 arrived, several things broke:
The result? A yellow exclamation mark in Device Manager and a useless WWAN card. hp un2420 mobile broadband module driver windows 10 repack
I have repacked the final working drivers into a single, modern installer. This disables driver signature enforcement for the legacy modem and fixes the "Device cannot start" error. HP officially ended support for this module with
Download Link (Mega / Google Drive): [Insert your actual link here] The result
File Info: