To get your device working, you don't need a "K4203" driver; you need the driver for the chip inside it. We will find this using the Hardware ID.

Download the official Vodafone Mobile Broadband Dashboard for Windows 10 (Version 11.2.0 or newer).

– it will not work in Zoom or standard camera apps. You need specific capture software:

If you need reliable video capture on Windows 10, consider a modern USB HDMI capture card (e.g., EVGA XR1, Elgato Cam Link) or a dedicated composite-to-USB 3.0 adapter from a brand like StarTech or IOData. These have proper signed drivers and support HD.

When you plug the K4203 into a modern Windows 10 environment, the operating system attempts to initialize it via default USB Mass Storage drivers. The device features a built-in virtual CD-ROM partition holding legacy setup files. However, because this hardware was released prior to the standardization of modern Windows 10 kernel updates, manual driver deployment or configuration tweaks are often necessary to achieve a stable connection. Methods to Install K4203 Drivers on Windows 10 Method 1: The Built-In Plug-and-Play Installer

If you have old versions of Vodafone software installed, they may block new drivers. Use a Vodafone Cleanup Tool