Hello guys! I just upgraded my drone (Phantom 3 Standard) to the latest firmware. Before the upgrade I was able to fly 500 m distance. But after the upgrade I´m losing the signal very fast. Maybe at 100 m or something and the drone is returning home. How do I downgrade to the prev. update? Where do I download these? Do I need to upgrade my RC controll aswell? If the answer is yes, how to do that? My english is kind of poor.. But hope you understand my problems!