This time, I was able to download everything without a problem. So I put again the card in the drone, formatted it again, and took some pictures and a video. I was then able to read the card from my MAC, and downloaded the pictures, but the video could not be downloaded, as it was corrupted. At that point, the card was readable from the MAC, even if it was obviously empty.I put the card in the drone, formatted it from the app (very quick, so no low level format), and took a few pictures and a video.

It took around one hour and a half (note to myself: buy a USB 3 card reader). I formatted the SD card from Windows 10, unticking the 'quick format' option, in order to have a low level formatting of the card. If I encounter one more problem, I will discard this SD card. I am still practicing to master the M2P, so the videos I will shoot will in any case not be pieces of art. I now have some doubts about the reliability of my SD card, so I will check carefully how it behaves in the coming days. Could it be that on my first trial, I have turned off the drone too soon, causing the video file to be corrupted? I would consider this as a bug. On this second trial, I noticed that the red dot in the app, indicating that you are recording a video, is blinking for a few seconds more when you stop the recording.

It took around one hour and a half ( note to myself: buy a USB 3 card reader).

How to format sd card on macbook pro