Hi all, This is my first post. I recently dunked my Phantom in the river, where it stayed for 24 or hours before I found it. I took it all apart, washed it out, dried it for two days in front of a heater, then in a bag with silica gel. I hooked it up to the computer, and everything checks OK. I recalibrated the controller, etc., and all was nominal. I then took it outside and let it initialize. It acquired 6 satellites in the normal time. I started it up (my wife held it above her head, so it wouldn't take off) and revved the motors -- still all OK. Then I spun the motors up to about 80% and left them there for 10 seconds. This is when the trouble began. The motors stayed at that speed and could only be brought down by turning them off. Not good, I thought. So I brought it in, dried it another day, unplugged and cleaned all contacts on the main controller, and tried it again without props inside. The same thing happens. When I increase the speed momentarily, even to 100%, and let the throttle center, the motors come back to idle, but after I keep the speed up for 3 seconds or so, they stay up, and fail to return to idle. My working theory is that the Phantom is attempting to stay in the air after what it thinks is a takeoff, and the motors don't come back down because it's trying to stay aloft. Is there any validity in that theory? How could I troubleshoot this behavior? Thanks for any help!