Maybe it is a firmware update to correct my issues. Mine was unflyable as it was, too allow a auto take off then present alerts disconnections from GPS once airborne is nerving to anyone, Luckily I was experienced or for sure it would have been a goner. I sure changed colours when it drifted away out of control while all sticks were still in the middle and toggle was in P mode. Because of my playing in Atti mode once and a while before with my other P4, I was in and out of hope while trying to understand what was going on at first with only seconds to think as it drifted further away. When it disappeared behind me over trees and out of sight was when I looked down to the screen and then fought back against the wind direction to fly back to me on the shore line. At first I pressed RTH and held it for beeping confirmation of engagement and none of that worked, probably because I noticed after that the GPS mode said off on the screen. It makes me nervous even recalling this, my wife described my pale face as I lost control of it. While all this it began drifting over towards the city with people walking around on a very warm late afternoon not far from the beach where I began, clear away from people.
Oh well nothing happened thank goodness!
Thanks for your reply u000gbk