Got a Phantom 3 Standard. Took a hard landing, off the back of a car. Broke the yaw arm and tore up the ribbon cable. Replaced the arm and cable. Now I have range issues. I get a different range every time I fly. Sometimes 300', but been as far as 1300'. I downgraded the firmware from 1.6.8 to 1.5.7, and that didn't seem to help at all. Any suggestions as to what could be causing the RC signal loss?