Tag Archives: wireless

[Solved] Enable Wireless from Broadcom Corporation BCM4312 802.11b/g (rev 01)

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Here are the steps by which I enabled the wireless connection in my friend’s laptop.

Her laptop was “HP DV4 – Entertainment PC-12 cell batteries.”

Q. How to confirm that you have Broadcom Wireless Network Controller.

A. Enter the command as shown below.

asee@asee-hp:~$ lspci -v | grep Broadcom

Output

If you see the Broadcom highlighted in red. Then it confirms that you have Broadcom Wireless.

Then enter the following commands. First off you need to ensure that you have the build essentials package installed so that you can build the b43-fwcutter. Use the following Command to install build-essential.

asee@asee-hp:~$ sudo apt-get install build-essential

When asked enter the password of your computer.

Then we need to install the fwcutter. Once that is installed you can download and build b43-fwcutter. Use the following command shown below :

asee@asee-hp:~$ wget http://bu3sch.de/b43/fwcutter/b43-fwcutter-011.tar.bz2

asee@asee-hp:~$ tar xjf b43-fwcutter-011.tar.bz2

asee@asee-hp:~$ cd b43-fwcutter-011

asee@asee-hp:~$ make

asee@asee-hp:~$ cd ..

Now we need to download the Broadcom firmware and install it.

asee@asee-hp:~$ wget http://downloads.openwrt.org/sources/broadcom-wl-4.80.53.0.tar.bz2
asee@asee-hp:~$ tar xjf broadcom-wl-4.80.53.0.tar.bz2
asee@asee-hp:~$ cd broadcom-wl-4.80.53.0/kmod

Then use the following command.

asee@asee-hp:~$ ../../b43-fwcutter-011/b43-fwcutter -w /lib/firmware wl_apsta.o

Then we have to activate the wireless device, which is by default deactivated for broadcom drivers.

To activate the device Goto Main Menu (Panel in Ubuntu) >> System >> Administration >> Hardware Drivers.

It will search for Hardware drivers for some moments. Then it will display you with two list of Wireless Card.

Select the Below one with Broadcom STA Drivers

Click Activate.

Once it is installed. You can restart your laptop and confirm that wireless is working fine with your card.

Have a nice day.

with best regards,

Asee

Wireless Internet Connection in Backtrack

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As I am an engineering student, we have computer network lab. In this lab we are taught differnet aspects of computer networking. I had been using Backtrack I was trying very hard to get myself connected to internet.

Then I found the following solution.

At first Open up Terminal and type the following two codes code in separate consoles.

$ /etc/init.d/networking start

$ /etc/init.d/wicd start

Then Click in KMenu > Internet > Wicd Manager

There you’ll see the available networks. Select the network you want to make connection to, If you’ve to use key for authentication then you’ll have to expand the Network name, followed with arrow [bulleted arrow]. Then put your settings and hit ok.

then try to connect. Once you’ve successfully connected. You can surf the internet.

That’s how I connected to internet in backtrack.

Note: Backtrack doesn’t start networking automatically, you’ve to manually start it and when finished you can stop it through command.

$: /etc/init.d/networking stop

Similarly you can stop wicd with command

$:/etc/init.d/wicd stop

Have a wonderful day.