Broadcom wireless not working and apply changes doesn’t do anything

If you have recently installed Ubuntu and wondering why wireless doesn’t show in network then it could be that your device is Broadcom and proper driver is not installed.

You can try installing the driver by going to System Settings -> Softwares & Updates -> Additional Drivers tab. You can select the Broadcom device and click on Apply Changes.

If clicking on Apply changes doesn’t do anything make sure the system is connected to internet. When on Ubuntu 14.04.2 LTS I was not able to fix the problem using this method. A quick Google search gave the following command

sudo apt-get install firmware-b43-installer b43-fwcutter

But for some reason the above command came up with error “has no installation candidate”. Later I realized that I get the same error for any apt-get install command and the culprit was screwed up sources list file. If you are still with me then you are close to solving your problem!.

Visit the following site and execute the curl command given in the site after selecting the repositories. This will automatically update the sources.list file under /etc/apt.

Now you will have to rebuild apt-get database by executing

sudo apt-get update

Now you are all set to install Broadcom wireless driver by executing the first command again

sudo apt-get install firmware-b43-installer b43-fwcutter

Time to reboot!

sudo reboot

Voila now you should be able to connect to wireless network!!!





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