I set PV2+ fly over the Harbor by GPS waypoints. However, when it was in the air, my cell phone display warned me the connection with PV2+ was on and off. What makes the connection on and off despite it completed all waypoints and landed perfectly. When PV2+ connected to more than 6 GPS and took off smoothly, any possibility that GPS number will suddenly decrease or all lost while it's in the air ? When flying over the harbor, lots of seagulls scared by this noisy flying device. They were following my PV2+, anyone experience flying device crashed by birds ? Shouldn't I fly it in seagulls' territory ?