The Ericsson F3507g WMC Composite Device driver helps Windows recognize and communicate with the multiple interfaces of this Ericsson mobile broadband module. It supports the connection between the hardware and compatible networking software, allowing the module to be used for cellular data access when a suitable SIM, service plan, and connection configuration are available.

Key Features

• Composite device recognition: Helps Windows identify the module’s related interfaces rather than leaving them listed as unknown devices in Device Manager.
• Mobile broadband support: Provides the driver components needed for compatible software to communicate with the Ericsson cellular modem.
• Coordinated hardware interfaces: Supports the interfaces used for modem control and data communication within the same physical module.
• Windows driver setup: Intended for installation with a matching package for Windows 11, 10, 8, or 7. Compatibility depends on the package version, system architecture, and your computer manufacturer’s hardware configuration.

How to Install

1. Check your system and hardware. Confirm your Windows version and whether it is 32-bit or 64-bit under System settings. In Device Manager, verify that the installed module is the Ericsson F3507g WMC Composite Device; compare hardware IDs if the name is missing or unclear.
2. Download a compatible driver package. Choose a package that explicitly supports your Windows version and computer model. Older mobile broadband hardware may require manufacturer-specific drivers, so do not assume every package works across all four Windows versions.
3. Extract and install the driver. If the download is compressed, extract it first. Run the included installer with administrator permissions and follow its prompts.
4. Use Device Manager if necessary. If no installer is included, right-click the device, select Update driver, and choose Browse my computer for drivers. Point Windows to the extracted folder and include subfolders.
5. Restart and check connectivity. Reboot if prompted, then confirm that Device Manager shows no warning icons for the module. Enable the mobile broadband radio and configure your carrier settings through supported connection software.

Installing the driver alone does not activate cellular service. If the hardware is recognized but cannot connect, check SIM status, network coverage, and the carrier’s access point name (APN) settings.

Common Issues and Fixes

• Install fails or device shows Code 28/10: Use the Lenovo/Ericsson package matching Windows version and architecture, run as administrator, and remove older WWAN drivers first. If setup still fails, uninstall the device in Device Manager (including hidden entries), reboot, then rerun the package.
• Device not detected: Confirm WWAN is enabled in BIOS and by the wireless switch/Fn+F5, and that a valid SIM is seated. Reseat the F3507g module in its mini-PCIe slot if Device Manager shows no Ericsson WMC Composite Device.
• Version conflicts/duplicate entries: Uninstall previous Ericsson mobile-broadband drivers and Lenovo Access Connections, delete hidden WWAN devices, and reboot before installing one OEM-matched driver; mixing generic Ericsson and laptop-vendor packages can cause Code 31 or connection drops.