Ask a Fujitsu Service Partner to enabel the UMTS entry in the BIOS setup if not already visible. Check for integrated SIM-Card slot, this is a mandatory prerequisite, install a functional SIM-Card. Install the correct UMTS driver, switch-on the modem. Then, after all was useless, alternatively use Sierra Aircard Watcher R12.0.1305.2 Build 3830 (Sierra Wireless Management Software latest version, suitable for Windows 10) instead Fujitsu LTE / UMTS Connection Manager, with option "autostart". Save and restart your Lifebook.
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