Okay, i also have a real old style phantom, 2 axis gimbal, ive never done any firmware updates to it, its my understanding if i go into the assistant i can change things like altitude limit, flying modes etc, is that correct? One more thing, it fell out of the air about 3 foot off the water, retrieved it right away. Took it apart blew all the water out and let it sit in the sun for about 2-3 days, the battery obviously toasted instantly. But, now when i put a different battery in, it powers up, camera comes on and streams to my phone. But says invalid battery, or unauthenticated battery, and wont fly. Also it has a compass calibration prompt. Any takes on that?