Matrice 210 V2 and GPS external module (No RTK)

[bruno.campi]

Hi, everyone,
Antenna is mounted on side as manual indicate correctly, cable is linked on right side of rear connection panel, and dji pilot see external gps on status bar (Icon as circle gps)
so, when i start app, magnetic filed error blink, obviosuly motor doesnt start, and cannot take off with camera on top position.
GPS icon sign me 12 satellites, so all goes fine, but error show blinking..
so, when unlink cable from rear panel, (and remove camera from top beacuse gps is too poor), gps internal signal goes on 12 sat, no error of magnetic fields, and fly bird correctly.
in one case i went beside electric tower, and maybe issue was about it, but after severy attempt "error magnetic fields" is in any case, also in an empty field football camp.

Any idea?
Sure beacuse every one have gps external kit on bird.
Thanks in advance.

 

[bruno.campi]

hi again, so, after new attempt, error is follow:

when link gps external module dji pilot on sensor screen show me "2nd compass", that is compass inside antenna (antenna is gps + compass)
so, 2nd compass need to be calibrate, app show me error, but cant give me chance to end calibration.
do you think antenna shouldbe broken, or need procedure that i doesnt know?
inconsistent firmware or anything else?
firmware was all upgraded, but maybe sometimes dji take fall way.

bruno