I have had my air bout six mos, I love it. after 4 mos i got constant hook to pc and use dji asst.2 to calibrate vision sensors. I finally figured out how . have controller on calibrate when plugging in. Any way after trying to calibrate for over an hour . I belive i got it. Now it doesent record video or pics on sd card or phone. I am very disapointed. any help will be very aperciated.