- sudo apt-get install linux-headers-generic build-essential dkms
- sudo apt-get update(optional maybe)
- sudp apt-get install linux-source
- sudo apt-get install --reinstall bcmwl-kernel-source (有可能只需要执行该步骤即可成功)
- sudo modprobe wl
- sudo dpkg -i wireless-bcm43142-dkms_6.20.55.19-1_amd64.deb