Is this a brand new Phantom that has never run before, or did it work for a while, and then develop a problem ?
If it is new, just return it, unless you live somewhere remote, and had trouble getting it shipped to you.
Does the Phantom radio work at all ? If not, then you may have to remove the top shell, and push the little button on
the teeny tiny receiver, to bind the receiver and radio.
Make sure the radio is on first, with the throttle lever all the way down, before you plug in your battery, even if you are connecting to the Naza Assistant.
Unable to connect to the Naza Assistant ? Did you download the drivers for your computer first ?
What is the L.E.D doing ?