Since official support from HP ended years ago, you must rely on archived SoftPaqs or community-repackaged versions. The most stable versions are typically:
Clean the Old DriversOpen Device Manager. Look under Network Adapters or Unknown Devices. If you see "Gobi 2000" or "HP UN2420" with an error icon, right-click and select Uninstall Device. Check the box for "Delete the driver software for this device." hp un2420 mobile broadband module driver windows 10 repack
HP SoftPaq SP48245: This is the original driver for Windows 7, which remains the foundation for most Windows 10 repacks. Since official support from HP ended years ago,