Because the bluetooth device is not available?
Simply the bluetooth device stopped working, I can not find it I tried to perform a scan with Apple Hardware Test is not possible for him to be with icompatível updated version of the Lion. And now what to do?
it due to the losse connection of wire to logic board jack. try to reconnect the cable coming from display clamshell to logic board . its the only wire which is so long as compare to others in the laptop. remove it then put back in then check . if working then it good otherwise . have to remove the display clamshell and remove that black strip from the display . there is wifi and blutooth card. check the losse connection there .