Sierra Wireless EM7355 Gobi 5000 USB Composite Device 901F Driver

The Sierra Wireless EM7355 Gobi 5000 USB Composite Device 901F driver helps Windows recognize and communicate with the EM7355 mobile broadband module and its USB interfaces. You may need it after reinstalling Windows, when Device Manager shows an unknown device, or when a laptop’s built-in cellular connection is unavailable.

Key Features

• Device recognition: Helps Windows identify the Sierra Wireless module and associate its composite USB interfaces with the appropriate driver components.
• Mobile broadband support: Provides driver components used for cellular connectivity on compatible systems. An active SIM, suitable service plan, and network coverage are also required.
• Interface coordination: Supports communication between Windows and the module’s exposed functions, which can include modem, network, and management interfaces depending on the hardware configuration.
• Windows package options: When choosing a package for Windows 11, 10, 8, or 7, check its release notes for explicit support for your operating system, system architecture, and laptop model.

How to Install Sierra Wireless EM7355 Gobi 5000 USB Composite Device 901F Driver

1. Confirm the device. Open Device Manager and locate the Sierra Wireless module or unidentified USB device. Check Properties > Details > Hardware Ids to ensure the package matches your hardware, including the 901F identifier where applicable.
2. Choose a compatible package. Before starting a Sierra Wireless EM7355 Gobi 5000 USB Composite Device 901F driver download for Windows, verify the supported OS and architecture. For Windows 10/11, do not assume a package intended for an older release will work.
3. Download and extract the files. Use a trusted manufacturer or laptop-vendor source when available. Choose a free download that clearly identifies the supported device, and extract the archive if necessary.
4. Install the driver. Run the supplied installer and follow its prompts. If the package contains only driver files, select Update driver in Device Manager, choose Browse my computer for drivers, and point Windows to the extracted folder.
5. Restart and test. Restart if prompted, check Device Manager for warnings, and look for cellular options in Windows network settings. If connectivity remains unavailable, confirm that mobile broadband is enabled and the SIM is activated.

Keep the driver updated when a compatible release addresses connection problems or Windows compatibility. Before you update, compare the installed version with the latest version approved for your system; a newer generic package is not always the best match for a laptop-specific module.

Common Issues and Fixes

• Install fails or rolls back: The INF may not match the EM7355’s USB VID/PID (901F) or the package may be unsigned. Run as administrator, confirm Hardware IDs in Device Manager, and use the OEM/Sierra INF that lists 901F; do not force a generic Gobi driver.
• Device not detected: Check the WWAN/airplane switch and BIOS WWAN setting, then disable USB selective suspend for the composite device. If only “USB Composite Device” appears, install the Sierra wireless WWAN driver so the QMI/MBIM and COM interfaces enumerate.
• Version conflicts/code 10/28: Uninstall old Sierra/Gobi drivers and remove leftover packages with `pnputil /delete-driver`, reboot, then install one matching OEM driver package. Avoid mixing Lenovo/Dell/Sierra versions.