From:
HOWTO Use Broadcom Wireless Cards in Fedora 14/15/16
http://fedoraforum.org/forum/showthread.php?t=239922
Find interface with lspci
Choose the right driver
lsmod to find if b43 or b43legacy
yum install b43-fwcutter
lsmod | sort
wget http://downloads.openwrt.org/sources/broadcom-wl-4.150.10.5.tar.bz2
tar xjf broadcom-wl-4.150.10.5.tar.bz2
cd broadcom-wl-4.150.10.5/driver
su
b43-fwcutter -w /lib/firmware wl_apsta_mimo.o