Ensure "Mobile Broadband" is enabled in your laptop's BIOS settings.
This is one of the most common and successful methods for Windows 10, as reported by users on the HP Support Forum.
is usually unnecessary and may conflict with modern OS settings. HP Support Community for your particular HP laptop model? HP un2420 Mobile Broadband Module - HP Support Community
For additional assistance or finding alternative SoftPaqs, you can visit the Official HP Driver Site or search the HP Support Community . Solved: HP un2420 Mobile Broadband Module - 7678243
HP un2420 Mobile Broadband Module Diagnostics (COM5): Hardware IDs: USB\Vid_03f0&Pid_251d&Rev_0002&Mi_01&Os_NT. Hardware IDs: USB\ HP Support Community hp un2420 mobile broadband module driver windows 10 upd
Download the executable file ( .exe ) to your local Downloads folder. Step 2: Install Using Windows Compatibility Mode
This is common. HP has explicitly stated for models like the ProBook 6450b and 4520s that they "do not offer any support for Windows 10" [10†L25-L28][14†L41-L42]. In these cases, the manual driver installation methods are your best and only options.
You can then:
Completely shut down your laptop. Remove the primary battery and disconnect the AC power brick. Hold down the laptop's physical power button for 30 seconds to drain residual static charges from the motherboard. Reassemble and boot back into Windows 10. Missing Cellular Toggle in Windows 10 Settings Ensure "Mobile Broadband" is enabled in your laptop's
: This error often occurs if the loader cannot detect the device or if secondary drivers (NMEA/Diagnostics) fail to start. Connection Software
It is crucial to have realistic expectations. The HP un2420 is a 3G (HSPA) module from a bygone era. Even with a working driver, you will not get 4G LTE speeds. The driver primarily enables basic modem functions and the NMEA (National Marine Electronics Association) port for GPS functionality.
with an LTE-capable, Windows 10–compatible card like:
Double-click the modified executable to start the installation. HP Support Community for your particular HP laptop model
: If the device fails to start, some users find that toggling Airplane Mode on and then off can force the module to initialize properly.
Check and select Windows 7 . Click Apply and run the installer.
The Official HP Drivers Page does not host a dedicated Windows 10 download package for this card. To circumvent this, you must run older packages using Windows compatibility layers or force-install them via the device management console. Step-by-Step Windows 10 Driver Installation