Since getting my drone back from DJI after stress crack repair, I noticed my sat. # has changed, from 17-20 down to 10-15. What is concerning to me, if I put my hand ontop of the drone, about 2-3 inches away, not touching it, but my hand covering the top back, satellites go to zero. Is there more then one GPS chip on this thing? is it possible they forgot to plug one in? This is enough for me to contact them and ask. What else could it be? maybe they installed it wrong? bumped it?