Ubuntu 12.04 Dell Precision M65 Broadcom Wireless not working

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http://askubuntu.com – I've just installed Ubuntu 12.04 LTS to a USB stick and am having problems getting the wireless networking to function on my Dell Precision M65. I've read a lot of articles and tried a variety of things, including: removed bcmwl-kernel-source installed firmware-b43-installer installed b43-fwcutter installed firmware-b43-lpphy-installer Per output from rfkill I don't appear to have a hard or soft block, but I still have the message that "wireless is disabled." Here is some output from my system to help provide details: lspci -nn | grep 0280 0c:00.0 Network controller [0280]: Broadcom Co (HowTos)