After replacing your Lenovo Legion 5 motherboard, the ``Fn + Q`` shortcut and Lenovo Vantage may not work because:
# ***Missing or incorrect system info (serial number or model)*** in BIOS – service center must reprogram it.
# ***Missing drivers or firmware*** – install:
** Lenovo System Interface Foundation
** ACPI Power Management Driver
** BIOS/EC update
# ***Lenovo Vantage needs reinstalling*** – uninstall, reboot, and reinstall from Microsoft Store.
👉 Go back to the service center and ask them to check if the ***serial number and model are properly set in BIOS***. Lenovo Vantage won't work without that.