How is it possible to activate WLan

I have the Jessie light installed.

I have tried it in all possible ways.

After this:

git clone

cd bpi-tools

sudo ./bpi-tools -u -U

sudo bpi-update -c bpi-m3.conf

Went it all at once, I had wlan3 normal is wlan0 After the reboot was nothing to find any more.

I was grateful for any help.