Passo 1:

Checar a existencia do fwcutter em seu sistema e removê-lo

root@localhost ~# rpm -qa | grep b43
b43-fwcutter-008-1.fc8

Atualize

root@localhost ~# yum update b43-fwcutter*

Levou para b43-fwcutter-011-3.fc8

Passo 2:

Baixando a última versão do driver da broadcom
wget http://mirror2.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2

Descompacte o driver:

root@localhost Broadcom# tar xvfj broadcom-wl-4.150.10.5.tar.bz2


Extraindo o firmware do driver:

root@localhost broadcom-wl-4.150.10.5# cd driver/
root@localhost driver# b43-fwcutter -w /lib/firmware wl_apsta_mimo.o
This file is recognised as:
ID : FW13
filename : wl_apsta_mimo.o
version : 410.2160
MD5 : cb8d70972b885b1f8883b943c0261a3c
Extracting b43/pcm5.fw
Extracting b43/pcm4.fw
Extracting b43/ucode15.fw
Extracting b43/ucode14.fw
Extracting b43/ucode13.fw
Extracting b43/ucode11.fw
Extracting b43/ucode9.fw
Extracting b43/ucode5.fw
Extracting b43/ucode4.fw
Extracting b43/lp0bsinitvals15.fw
Extracting b43/lp0initvals15.fw
Extracting b43/lp0bsinitvals14.fw
Extracting b43/lp0initvals14.fw
Extracting b43/a0g1bsinitvals13.fw
Extracting b43/a0g1initvals13.fw
Extracting b43/b0g0bsinitvals13.fw
Extracting b43/b0g0initvals13.fw
Extracting b43/lp0bsinitvals13.fw
Extracting b43/lp0initvals13.fw
Extracting b43/n0absinitvals11.fw
Extracting b43/n0bsinitvals11.fw
Extracting b43/n0initvals11.fw
Extracting b43/a0g1bsinitvals9.fw
Extracting b43/a0g0bsinitvals9.fw
Extracting b43/a0g1initvals9.fw
Extracting b43/a0g0initvals9.fw
Extracting b43/b0g0bsinitvals9.fw
Extracting b43/b0g0initvals9.fw
Extracting b43/a0g1bsinitvals5.fw
Extracting b43/a0g0bsinitvals5.fw
Extracting b43/a0g1initvals5.fw
Extracting b43/a0g0initvals5.fw
Extracting b43/b0g0bsinitvals5.fw
Extracting b43/b0g0initvals5.fw
Extracting b43/a0g0bsinitvals4.fw
Extracting b43/a0g0initvals4.fw
Extracting b43/b0g0bsinitvals4.fw
Extracting b43/b0g0initvals4.fw
root@localhost driver#