How to install and drive Ubuntu wireless card

All the information in Chinese is not reliable. I haven't solved the problem for 3 hours.

But a straight look at the English documents instantly resolved AH.

Https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx#Switching_between_drivers

There are two kinds of driver software: STA and b43

My computer is Y410p-ifi 1T HDD version, bought in May 14

The wireless card is Broadcom BCM43142

According to the signature of this document,

What I need is an STA drive, also called WL.

(possibly other Bluetooth WiFi mixed Broadcom Wireless card is this type, because in http://www.broadcom.com/support/802.11/linux_sta.php download, the package name is hybrid)

Performed these discoveries to search for a signal.

sudo apt-get update
sudo apt-get--reinstall install Bcmwl-kernel-source

sudo modprobe-r b43 SSB wl brcmfmac brcmsmac BCMA
sudo modprobe wl

Find a similar situation, but people use the B43

http://blog.csdn.net/yyplc/article/details/7243220