How to install kali linux on android
Generally in order to do this, a perquisite is to root the device. There are actually dedicated apps on the play-store (Kali-Linux) (Backtrack is out of date)... that are an all in one process. Try a search and the application will guide you through the process. Be careful, you can end up bricking the device. I would recommend using an old one or ensuring backup data is on standby to reinstall via usb.