I don't know what to do about that. Sorry. But what about trying the pre-compiled binary broadcom-wl driver from RPM Fusion? If you don't have some special reason not to try, it would take about two minutes to install it using your wired NIC and get the answer (install the repos
, run yum install akmod-wl
, reboot, check for networks). If it doesn't work at first, there are several kernel modules known to interfere with it (e.g., ssb, bcma, acer_wmi). Blacklisting those usually lets broadcom-wl take off. Another common mistake after installing akmod-wl is to reboot back into an old kernel that doesn't have a kernel-devel installed (don't do that).
P.S.: You should fully update the system via your wired NIC before installing akmod-wl. Otherwise, the akmod may not have what it needs (i.e., kernel-devel) to generate the kmods for an old kernel.