Annoying background noise, DJI Osmo Mobile 6 motor humming, whirling sounds being recorded on my iPhone 11 Pro.

Hi, Jonny4. Thanks for reaching out, and apologies for the inconvenience caused. May we confirm if this issue occurs when you use the DJI Mimo app only or even when using the mobile phone camera system itself? If the Glamour Effects function is enabled, kindly disable it and test if the same noise is being heard.  If possible, kindly share a sample video taken from the DJI Mimo app and another video not using the app but just taken from the mobile phone camera (while attached to the gimbal) for comparison. Kindly keep us updated. Thanks for your cooperation.