Broadcom-wl (BCM 4312 Chipset) broken after update
What does "systemctl status akmods.service" return?
What happens when you execute "systemctl enable akmods.service" and "systemctl start akmods.service"?
I also had problems with the latest kernel, but after I did that, it worked. The first reboot, it did not give me wireless, but after rebooting, the wireless was enabled and active again. It is something to try.
Before, when I tried, it was returning that it was not active. After enabling and starting, it returned this:
systemctl status akmods.service
akmods.service - Builds and install new kmods from akmod packages
Loaded: loaded (/usr/lib/systemd/system/akmods.service; enabled)
Active: active (exited) since Fri, 22 Jun 2012 22:25:23 -0400; 11h ago
Main PID: 604 (code=exited, status=0/SUCCESS)
Jun 22 22:25:23 hostname.domainname akmods: Checking kmods exist for 3.4.3-...]