I've got the same problem with my Lenovo ThinkPad Edge E320 laptop. Wireless 
key (F9) does nothing unless WiFi card and Bluetooth is enabled under the 
Windows 7. When WiFi and Bluetooth are enabled then F9 changes state of WiFi 
card but doesn't affect Bluetooth card. The problem occurs on Ubuntu 14.04.2 
with hardware enablement stack. I've got newest update for BIOS installed. Here 
is output of sudo dmidecode -s bios-version && sudo dmidecode -s 
bios-release-date:
8NET37WW (1.21 )
07/16/2013

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https://bugs.launchpad.net/bugs/990034

Title:
  [Lenovo E320, b90] Wireless Key does not function

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