Hello. I had recently put together a dji f-450 quad. no gps yet. But nevertheless, went through the dji naza assistant 1.8. wrote the settings,but when I go to fly it, the versatile unit blinks yellow, to start it, you have to have the joysticks on the (left) bottom right and (right) at left top corner. I have 8" in blades on it now, waiting for the 10s. Its set on acro, endpoints 100, no trim, I think you are to have no dual rate. When you throttle it up it just auto-rotates and pivots on any single motor wanting to tip to either side. I have a Futaba T6EX. I am have the x-3 port on the naza going to the versatile unit and the "u" port going to channel 7/8 on the futaba receiver.I have it on atttude mode also. If someone has a idea to why this is doing this, id be very thankfull..