If you’re looking to install Android M on your Nexus 6, you’ll first need to download the update file from Google. Once you have the update file, you’ll need to connect your Nexus 6 to your computer using a USB cable. Next, you’ll need to open the update file and click on the “install” button. After clicking on the “install” button, your Nexus 6 will start downloading Android M. Once the installation is complete, your Nexus 6 will restart and you’ll be able to use Android M on your device. ..