Reinstalling LL after losing wifi due to installing updates

[anon222]

That's [14e4:4312] (rev 01) how did I missed that Sorry
Broadcom PCI ID's are so confusing

Code:

sudo apt-get purge linux-firmware-nonfree

Code:

sudo apt-get install firmware-b43-installer

reboot

As you can see  Broadcom BCM4311 is on the list here

misko@misko-virtual-machine:~$ apt-cache show firmware-b43-installer
Package: firmware-b43-installer
Priority: optional
Section: multiverse/kernel
Installed-Size: 56
Maintainer: Ubuntu Developers <[email protected]>
Original-Maintainer: Daniel Echeverry <[email protected]>
Architecture: all
Source: b43-fwcutter
Version: 1:018-2
Replaces: firmware-b43-lpphy-installer (<= 1:015-14)
Depends: b43-fwcutter (>= 1:018-2), bzip2, wget
Breaks: firmware-b43-lpphy-installer (<= 1:015-14)
Filename: pool/multiverse/b/b43-fwcutter/firmware-b43-installer_018-2_all.deb
Size: 3960
MD5sum: 07d2f9cb3e6f8c0091a51aa52e2a15d1
SHA1: 5426bc3087f8b45f0367a0b536a7ad5f55412db4
SHA256: 98bcb297319ccde275b8a130ae00b7eea867d54c8a6db6d0ee511fc0bfb2b90b
Description-en: firmware installer for the b43 driver
This package downloads and installs the firmware needed by the b43
kernel driver for some Broadcom 43xx wireless network cards.
.
Supported chipsets:
  * BCM4306/3;
  * BCM4311;
  * BCM4318;
  * BCM4321;
  * BCM4322 (only 14e4:432b);
  * BCM4312 (with Low-Power a.k.a. LP-PHY).
Description-md5: 69be8c515d4213f3cacafffeda87ed7a
Homepage: http://wireless.kernel.org/en/users/Drivers/b43
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Origin: Ubuntu