Hello everyone. 3 days ago i brought Tello and it's my first drone) I learn too much in 3 days but what i don't like in tello it's somethimes it's can't understand ground and it's flying away... also I haven't Wifi Extender and too bad... because after 15 meters of height wifi signal losting. Also after 20 metres of any direction.. I have Stok DJI Tello and Samsung Galaxy S9 a ?