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On a Lenovo IdeaPad 330 (a common model with this issue), the ACPI FNBT0000\0 driver is actually part of the version 1.8.0.0. Users reported that after upgrading to Windows 10 20H2, the driver vanished, and brightness keys stopped working.
Expand the or Human Interface Devices section to find the entry with the yellow warning flag labeled Unknown device . acpi fnbt0000 0 driver windows 10
If the ACPI\FNBT0000 driver is missing, Vantage will list it as a "Critical" or "Recommended" update. 3. Manual Update via Device Manager On a Lenovo IdeaPad 330 (a common model
Enter your laptop or desktop or Service Tag to find your exact model's download page. If the ACPI\FNBT0000 driver is missing, Vantage will
Based on extensive user reports and driver databases, the ACPI\FNBT0000 device often uses a driver called AirplaneModeHid.inf and identifies itself as an . Here's how to force-install it.