Solving Ubuntu and Wireless problem on Dell Vostro 1310

Today I was trying to rise up my old (but gold) 2009 Dell Vostro 1310. It was my first laptop and I don't want to put it on a trash bin. After installing Ubuntu 14.04, I've faced a problem with the Wireless Broadcom driver, so this is the way I fixed:

sudo su -
apt-get purge bcmwl-kernel-source broadcom-sta-common broadcom-sta-source
apt-get install b43-fwcutter firmware-b43-installer

Remember that you need to be connected using a LAN cable.