Hello all, I have had this Phantom 2 for about a year and have flown it perhaps 25 times last year. now however there is a change, with remote turned on first, phantom is powered on it goes and does its tune and alternating lights flash after that the rear lights go Red after about 45 seconds they flash a fast green series of flashes and then go back to red. phantom wont spool up, but if i lift it about a foot off the ground and tilt it forward end down about 45 degrees the lights begin slow green flashing and while holding up and tilted the motors will start. i can then set it down and all seems well. flies right and switch remote off and will auto land. sometimes i have to lift it 30 to 36 inches off the ground while tilting. I did do a recent update on the phantom 2 and recalibrated the remote. any thoughts appreciated and i have done this whole sequence in 3 different open fields in the desert with nothing by way of structures for at least a half mile in all directions. Thanks Mark Hansen Tucson Arizona.