Function keys not working on Ideapad Y580 after the upgrade to windows 8

Hello
I have improved my Ideapad Y580 to windows 8, and now I can't get the combination of function keys to activate my wireless hardware.

Please install windows lenovo energy management 7, then press fn + f5. Windows 8 is not working properly.
http://download.Lenovo.com/Consumer/mobiles/cagt24ww.exe

Tags: Lenovo Notebooks

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