Dell Latitude E6400

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  • Broadcom 43xx wireless devices

Add a "contrib" component to /etc/apt/sources.list, for example:

# Debian 7 "Wheezy"
deb http://httpredir.debian.org/debian/ wheezy main contrib non-free

Update the list of available packages:

apt-get update

Install the appropriate firmware installer package:

For devices with a BCM4306 revision 3, BCM4311, BCM4318, BCM4321 or BCM4322 chip, install firmware-b43-installer:

Do make sure that you have [contrib] in your sources

apt-get install firmware-b43-installer

On Buster, I had to jump through a few hoops!

Download firmware-b43-installer.deb and b43-fwcutter_019-3_amd64.deb from

https://pkgs.org/download/firmware-b43-installer

Load the module:

sudo modprobe b43