I installed Lubuntu 14.04 on my wife's old netbook. I cannot get the wireless to work.  I initially installed the STA driver, but it did not work. I then removed it and installed the b43 driver. Synaptic Package Manager shows that firmware-b43-lpphy-installer and b43-fwcutter are installed and that bcmwl-kernel-source is not installed.  Yet when I go to the Additional Drivers screen is says that Broadcom BCM4312 is not working and is using bcmwl-kernel-source (which I know is not installed).  It also shows "unknown device" and gives me the option to continue using manually installed driver  If I try to do so, nothing happens. There is also a grayed out option that says using non-free firmware for Linux kernel from linux-firmware-non-free.  Any help would be appreciated. I am at my wits end, and the wife is threatening to go buy a Windows computer.  OK, it is not a blacklist issue. Here is the result of the dmesg | grep b43 command:  [17.652124] b43-phy0: Broadcom 4312 WLAN found (core revision 15) [17.728574] b43-phy0: Found PHY: Analog 6, Type 5 (LP), Revision 1  [22.268301] b43-phy0: Loading firmware version 478.104 (2008-07-01 00:50:23
I'm having serious problems installing the Broadcom drivers for Ubuntu. It worked perfectly on my previous version, but now, it is impossible.   What are the steps to install Broadcom wireless drivers for a BCM43xx card?  I'm a user with no advance knowledge in Linux, so I would need clear explanations on how to make, compile, etc.    lspci -vnn | grep Network showed:   Broadcom Corporation BCM4322 802.11a/b/g/n Wireless LAN Controller [14e4:432b]      iwconfig showed:  lo        no wireless extensions. eth0      no wireless extensions.   NOTE: Answer below is updated every time new information is added and confirmed working.
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