Couldn't find an obvious thread via the search... Whenever I try to engage the Follow Me mode, I get the screen where it asks me to confirm the height, distance, etc of the quad in relation to me. When I hit apply, I am told "Warning. Weak GPS Signal" This is on an iPhone 5 on the latest iOS and DJI versions. Never have any trouble with any other apps that use GPS, and if I switch to say Google Maps it pinpoints me right away. I do have an issue with the compass on the phone...it refuses to budge and won't re-calibrate. This happened around iOS 8. Could that be the issue? I am assuming if I tell the quad to stay 10 feet behind me, it needs to know what behind is if I turn.