ASUS UM3402YAR speakers not working on fedora linux

Ever since i’ve installed linux on this laptop in can’t manage to have the speakers working. In the arch linux wiki there is a solution linked, which refers to this gist but i can’t manage to reproduce the steps on my fedora linux.

For example the vmlinuz is not showing on the grub boot menu and i don’t really know how to operate, can someone guide me through the steps?