If anyone can help it would be greatly appreciated. I have a phantom vision, following start up procedures as specified in the wiki and user manual. I am getting the green slow blinking light saying it is in gps mode. app shows 10 satelites connected but it will not hover, just goes in circles that increase larger and larger. it also increases in speed as the circles get bigger. never hovers or stays still when the sticks are centered. I have updated the firmware and sticks are calibrated and software says no need to calibrate imu