Hp 840 G1 Selection of Wifi Card

Hi
I Have hp elitebook 840 g1 which wifi is not working but bluetooth is working.

I read this guide:http://www.tonymacx86.com/threads/g...book-using-clover-uefi-hotpatch-10-11.189416/
"- Other laptop:
WIFI ONLY: Atheros AR9280/9285, Broadcom 4322/43224 (better OS X feature support)"

Can you buy another wifi card ? For example, is Broadcom BCM94322HM8L work ?
Or
Others this document is work ?...

Hp 840 G1 Selection of Wifi Card