First download from google play store speedify. Second:after you install the program,select from menu settings of your phone "mobile networks"and enable 3g/4g/Lte.Third:Open the mobile data and then open speedify and chose the first option for mobile data at the settings.Then when a connection with your carrier have been established, follow the standard procedure to operate drone.Open the wifi connect with drone and after that open again the speedify from background,and you will see it, connect it with your 4g carrier and the Phantom.Then open litchi or dji go and go live.I try all above with android 5 and 6.0.1.Be careful every time you want to have live, before everything you must first open data then speedify,and after open the drone, and connect with wifi.