Connect your laptop HP 15-AF109AX to internet using ethernet lan port.
Update kernel
# apt-get install linux-image-6.1.0-33-amd64
Install tools for network and wifi tools
# apt-get install wireless-tools firmware-linux-nonfree wpagui network-manager-gnome dnsutils bluez-firmware blueman
Installing wifi BCM43142 adapter
# apt-get install linux-image-$(uname -r|sed 's,[^-]*-[^-]*-,,') linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms
Check all the built DKMS kernel modules. There should be "wl.ko" in the list.
# find /lib/modules/$(uname -r)/updates
/lib/modules/6.1.0-33-amd64/updates
/lib/modules/6.1.0-33-amd64/updates/dkms
/lib/modules/6.1.0-33-amd64/updates/dkms/wl.ko
Unload conflicting modules:
# modprobe -r b44 b43 b43legacy ssb brcmsmac bcma
Load the wl module:
# modprobe wl
Check wifi adapter interface is available
# nmcli dev
DEVICE TYPE STATE CONNECTION
lo loopback connected (externally) lo
wlo1 wifi disconnected -- <- found wifi xxxx
enp3s0 ethernet unmanaged --
Edit NetworkManager Applet -> Edit Connection -> Add -> type Wifi, fill SSID and Wifi Security WPA3 password.
Done.
Reference: https://wiki.debian.org/wl
