I'm sorry to put up one question by another. After I update my firm ware because of the control show all 0 value. Then the problem start. When i start to dis arm is show PreArm: Need 3D Fix.I don't know what is that and where to look for. I have no knowledge of this kind of hobby. I just want to fly and take high view photo. Does any one know any hobby shop near my area know about the 3DR Iris+ I want to take it there and let them make it right for me and ground it because my Solo is coming this Friday. I'm at West Covina CA 91790. Please let me know what to fix and who around my area.?