Personal notes to tackle the infamous Broadcom WiFi issues with Linux (Fedora)

wifi-broadcom.txt

# Some notes for the infamous Braodcom wifi hardware (I have BCM4352)
# Installing kmod for wifi:
# Sometimes for the latest kernel releases, the .rpm package will download but not 
# install, so check for the file presence:

cd /var/cache/akmods/wl

# Then look for the .rpm file for the current kernel. When you're in that directory, you can just 
# install it:

sudo rpm -ivh kmod-wl-<kernel-version-etc>.x86_64.rpm

# DEBUG COMMANDS:

# Check status of network managers
systemctl status NetworkManager

# Check also nmcli command
nmcli general status
nmcli radio wifi

# List wireless
rfkill list all

# manually turn wlan on
sudo iwconfig wlp2s0 power on

# Make sure kernel module is loaded
modprobe wl

# List devices
lspci -vnn

# For Fedora you must enable rpmfusion free & non-free repos - http://rpmfusion.org/Configuration/
sudo dnf install kernel-devel kernel-headers  @c-development --best --allowerasing
sudo dnf install broadcom-wl
sudo dnf install bcm43xx-fwcutter.x86_64
sudo dnf reinstall kmod-wl akmod-wl
sudo dnf install akmods kernel-devel
sudo dnf update
sudo reboot

# List available wifi frequencies
iwlist frequency

# List broadcom related packages
rpm -qa | grep -e kernel -e broadcom-wl -e kmod-wl -e akmod-wl | sort

# List interfaces capable of scanning
iwlist scan

# List hardware
sudo lshw -C network

# current kernel version
uname -r

# When upgrading Fedora, the latest Kernel is likely too new for Broadcom. 
# To get wifi select an older kernel version from GRUB2 menu when booting the computer
# or change the default.