Broadcom wireless on Ubuntu 12.04

I just upgraded to Ubuntu 12.04 and my broadcom wireless card was not being picked up. It took me some time to figure out how to do this, and the forums give a lot of tips which didn't work for me, so I thought I'd give it a quick mention.

	#In the terminal type
	sudo rfkill unblock all
	#then if you type
	rfkill list all
	#It should show something like:
	1: brcmwl-0: Wireless LAN
	    Soft blocked: no
	    Hard blocked: no
	#then type
	echo "blacklist hp-wmi" | sudo tee -a /etc/modprobe.d/blacklist.conf

view raw broadcom.sh hosted with ❤ by GitHub

Then disconnect your wired connection and reboot. I found it is crucial that you disconnect any wired connections.

 Upon reboot, go to System Settings - Hardware - Additional Drivers

 It should then pick up the broadcom proprietary driver. Install it, then reboot, and you should be back up and running!