Linux kernel 4.1-rc8

sudo apt-get update
sudo apt-get install linux-image-4.1.0-rc8-ob2d linux-headers-4.1.0-rc8-ob2d linux-firmware-image-4.1.0-rc8-ob2d

Linux kernel 4.0.5

sudo apt-get update
sudo apt-get install linux-image-4.0.5-ob2d linux-headers-4.0.5-ob2d linux-firmware-image-4.0.5-ob2d