On my Phantom, the atti mode isn't working. Example, when I turn on my Phantom, I leave it in GPS mode. After it has locked on to GPS, I switch it down to atti mode, but the yellow light does not come on. It stays green. What I have found out, if I pick up the phantom and wiggle just slightly, the yellow light comes on, but than goes back to green after a few seconds. Switching back in forth between gps and atti mode does not change the light. Stays green the whole time. Could this be a loose wire, or faulty part. I'm in Phantom mode. Only a couple weeks old and have about 3 flights on it. Never crashed or tipped it over. Any suggestions? P.S. I notice when I rotate it 360 degrees while its in a hover, it will drift quite aways. I don't know if this is related or not.