Getting Your HP un2420 Mobile Broadband Module Working on Windows 10 If you've upgraded an older HP business notebook like an HP EliteBook 8440p
If you'd like, I can help you find the for your specific laptop model, or I can walk you through the manual Device Manager installation step-by-step. Which would you prefer? HP un2420 Mobile Broadband Module - HP Support Community
(Then reboot. You’ll see “Test Mode” watermark.)
After the driver installs, the device may appear under "Network adapters." However, Windows 10 does not automatically create a mobile broadband connection for legacy Gobi cards.
Here are the two most effective methods to get your mobile broadband working.