Hi I have been flying mavic pro with the above phone for 8 months now. Has been perfect. I tried to fly yesterday and the phone will not connect to the app - message disconnected. I have uninstalled the app - I have tried using the USB cable at the bottom and get nothing - making sure I have remove the side connections. I am using version v4 2.21 of the app. Getting very frustrated now and not sure what to do next. I have tried connecting in all different sequences but still nothing. Can anyone help me please? Thanking you in advance. Neil