BPI-M2+ WiFi not working

Hello to all. I am new to BananaPi and Im trying to make my M2+ wifi (ap6212) to work. Is there a procedure that I need to follow to make it operational? Oh, I downloaded on my SD card the following image: 2018-05-21-ubuntu-16.04-mate-desktop-preview-bpi-m2p-sd-emmc.img

https://www.armbian.com/banana-pi-m2-plus/