Cant get BCM4311 to work on live dvd

Hello, my HP DV6205US will not connect to the internet. I am running Zorin OS 15.3 Lite 32-Bit (The CPU is only 32 Bit.) off of a DVD and the adapter just will not function. It is being detected by lspci as "Network controller: Broadcom Inc. and subsidiaries BCM4311 802.11b/g WLAN (rev 01)" and I just cannot get it to work. I dont really feel like installing zorin unless I can get Wi-Fi Working or if I need to install to get Wi-Fi Working. (P.S. The laptop does have a ethernet port so I can access the internet if I need to download anything.)

Can you please connect to the ethernet, then open terminal and run

sudo apt install firmware-b43-installer


sudo reboot

test your wireless...

I am currently running off of a live DVD so rebooting would remove those changes and I really dont feel like installing unless it is fully necessary. Is there any other way that I could apply that package without rebooting my PC?

Had no idea that you were commenting on the Trial Demo.
You can try the following:

sudo service network-manager restart


nmcli radio wifi off

Followed by:

nmcli radio wifi on


sudo systemctl restart NetworkManager.service

Did not work :frowning: Also I ran dmesg and found these error messages. They seem pretty important and I think they may be the answer to fixing this.
b43-phy0 ERROR: Firmware file "b43/ucode5.fw" not found
b43-phy0 ERROR: Firmware file "b43-open/ucode5.fw" not found
b43-phy0 ERROR: You must go to and download the correct firmware for this driver version. Please carefully read all instructions on this website.

Had you tried this?

I looked at the website but i dont seem to see a download link. I did install firmware-b43-installer which is what I think this website wants me to install but it did not do anything.

Can you please open a terminal and run

sudo apt update

Then post the output here?

I am running into a similar issue on an iMac. My hardware from OSX is:
Card Type: AirPort Extreme (0x14E4, 0xF4)
Firmware Version: Broadcom BCM43xx 1.0 (
Supported PHY Modes: 802.11 a/b/g/n

Can someone guide me step by step how to get wifi working on live USB. Like OP, I am not keen on installing it on the Mac without confirming the wifi will work.

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