Broadcom BCM94352Z B/G networks not found

Hello again,

I've successfully installed sierra on a hackintosh and could put to work the wifi+bluetooth card but the wifi has a problem, it can't find my local wifi network which is an old router using b/g.

I was reading the card specs and it supports this kind of networks and even after digging a lot I couldn't find any solution.

Any hint? Anyone had the same problem?

Thanks