Linux Ubuntu wlan hard block Lenovo Yoga 530?

I have installed on my Lenovo Yoga 530 Ubuntu 16.04. At first I had the problem that I did not get out of flight mode, but that was quickly done, because I remembered that my notebook had an FN combination for it. To turn off the wlan, however, he has no. It is hard blocked, so if I enter "rfkill list" in the terminal, wlan Hard blocked is set to 'yes'. I have tried everything possible: BIOS resets | ideapad_laptop blacklisted | Ubuntu reinstalled (several times). I do not have a button to turn off the Wi-Fi on my notebook (Yoga 530). I ask for help…

Hard blocked actually means that there's something on the hardware to prevent access. Does the thing work under Windows?

I know. And yes, Windows works the way it should