my drone and control respond erroneously, for example, when backing up, the drone retreats and begins to lower, with the wheel of inclination of the camera, the drone turns, when lowering, the drone begins to turn on itself and when releasing the controls , begins to move slowly, I previously made a calibration of the control, but the failure continues, additionally, sometimes when turning on the control it starts to sound intermittently a whistle, but the fault happens this or not shouting control.

Hi LuisOntiveros, sorry for all the trouble. If it is convenient for you, kindly provide a short video of the issue when your calibrating the remote controller. You can upload it by using google-drive or Dropbox and provide the link here. Just make sure to turn off the aircraft first before you calibrate the remote controller again. If the issue persists, you can restore the settings to factory defaults and then flash the firmware using DJI Assistant 2. You can download DJI Assistant 2 using this link: https://www.dji.com/mavic-air/info#downloads and follow the video tutorial below. After that, try to calibrate the remote controller again. Thanks for your support.