Comment 135 for bug 1436940

Hi, I have a brand new Acer F5-571 with a qualcomm atheros device and the wireless doesn't work. I removed windows10 and installed the latest ubuntu-mate wily 15.10 (same issue in mint 17.3). I'm somewhat of a newbie so please be gentle. I have tried a number of the points in this bug report to no avail, posts 81/90, the intro notes and others have all been tried. comment 118 didnt work, for some reason dkms would not install.
Kernel 4.2.0-34-generic
sudo lshw -C network
*-network UNCLAIMED
       description: Network controller
       product: Qualcomm Atheros
       vendor: Qualcomm Atheros
       physical id: 0
       bus info: pci@0000:03:00.0
       version: 30
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:c1000000-c11fffff
lspci : 03:00.0 Network controller: Qualcomm Atheros Device 0042 (rev 30)

Really need to get this wireless card working. Suggestions? If so please step by step, don't assume I know how to do stuff.