I also have no rfkill switch, which means that my wireless was hard blocked.
I added my product version into the ideapad-laptop module from git://kernel.ubuntu.com/ubuntu/ubuntu-vivid.git (see attached patch).
Now it is no more hard blocked
$ rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
I have the same issue with my new lenovo yoga 3 14".
$lspci -nn | tail -n1
02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0041] (rev 20)
$ cat /sys/devices/ virtual/ dmi/id/ product_ version
Lenovo Yoga 3 14
I also have no rfkill switch, which means that my wireless was hard blocked. ubuntu. com/ubuntu/ ubuntu- vivid.git (see attached patch).
I added my product version into the ideapad-laptop module from git://kernel.
Now it is no more hard blocked
$ rfkill list
0: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
But still not usable.
I'm willing to test anything you propose.