controller to drone connection question

jim4b

New Member
So I have a Eachine EX4, ( JJRC X12 ) and a new MJX Bugs 4 W b4w quadcopter drones. So they say to first connect your phone to the controller wireless after you turn it on. And then open up the application to fly and turn on the drone. Then after the drone does it initialize process in 30 - 60 seconds, it should automatically pair with and then connect to the controller which will show the same matching wifi network ID. It says controller and drone are paired when made at the factory. So then why does it have some times disconnected status in the application.? I do get calibration success for the GPS compass with no problems if I move the drone at least 10 feet away from both the controller and phone during calibration process. Also is that gyro calibration really needed before each flight too? Okay thanks.
 

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