Mori55 said:But you didn't do the alum tape mod ? You had it open why noy ?
I don't think you really need the tape as the gray GPS cover is already an RF shield. Look carefully at the edge and you will see several layers of copper separated by the gray insulating material. Inductance in the GPS connector wire is the likely culprit for interference, so shielding that it likely the trick. DJI could correct this by using a choke, twisted-pair wiring, or an RF jacket over the connector cable.