Hi, thanks for reaching DJI Forum, we do apologize if you are having issues with the calibration. May we ask for the brand or make of the mobile device where you downloaded the app? Also when was the last time you updated the firmware of your aircraft and the remote?
Hi, you may consider using a different device to see if the app will respond differently or either uninstalling and re-install the app again, however, before you delete the app, please ensure that the important files are saved and you can sync your flight records before deleting it. Please see the tutorial on how you will calibrate the RC. You can also send a short video of the issue so that we could analyze it. Thank you.