I have a Phantom 1 but the answer to my question may apply to all Phantoms. Not sure. My first Phantom 1 is on ver 4.00. I did not upgrade to 4.02. I can not reset home position while flying. I jus received my second Phantom 1 ver 4.02. I believe it will let me reset home position while flying. The question is...does it have to be more than ten meters from original home point to do this? Next..does it have to be flying or can I land it and reset home point with props turned off? Same question with course lock.