Hey, I flew my phantom v 2.0 for the first time yesterday and noticed that it was changing in altitude during flight. Like it would ascend when I would not be touching the remote and it would descend. Its strange. EDIT Also, the altitude readings would be way off from the beginning. It would say -250 feet when on the ground. I have been researching, could it be a bad barometer? So replacing the naza v2 board would fix it? I just got it a week ago!