Hello everyone
I recently installed Fedora 31 on my HP machine and the installation went good and all but then I my machine cannot detect my wireless card (BCM43142) I tried sudo dnf update and sudo yum update and tried installing free and non-free rpmfusion repositories but none of that work. I tried installing the broadcom driver for BCM43142 but still didn't work. Can anyone help me? Really appreciating your help and support.
Also can anyone tell me how to use a makefile as well?
Thanks!!

Broadcom are gone now. IIRC, they were writing linux software for that 43142 back in 2008 while I was dealing with my own 4312 issues, so I guess it's an oldie. I don't see any firmware for your card in the kernel. There was a big firmware cleanout of 'all that old <expletive> nobody uses anymore' in 2015, iirc. Some of us (myself included) were still using some of that 'old <expletive>.

I'd search the threads for your card. Search your logs for firmware errors. If you find some, search the net for firmware. It's probably quickest.

That is suppose to work with broadcom-wl-dkms

https://wiki.debian.org/wl
https://wiki.archlinux.org/index.php/Broadcom_wireless
https://unix.stackexchange.com/quest.../305562#305562
https://ibcomputing.com/install-wifi...cm43142-linux/
https://forum.manjaro.org/t/broadcom...t-working/2141