Never experienced this before but I fired up the bird today and soon as I lifted off it just flipped over on its back! It happened a couple of more times so I checked the props and if anything was blocking the motors, all clear.
I decided to calibrate the compass and the problem righted itself, literally!!! I’ve had to calibrate the compass in the past but I’ve never experienced this flipping motion.
Anyone else experienced this?
No, but raise a ticket with DJI, also whats the Airdata say?
Absolutely nothing!?!?! Not even an entry when I synced the flights. 
It can take some time to sync, try again
Ahhh it’s now appeared… Here is a screen shot… Still none the wiser as there is no mention of any errors or issues…
Have you just changed the propellers? If so, check you’ve got them on the correct way.
Props have not been changed . 
Can you paste the link to the AirData … more info can be extracted than is visible in that screenshot.
Hope this helps…
Alas - in this case the logs show nothing more.
There was a time when they used to show individual motor speeds, so was hoping to advise which motor wasn’t behaving.
Stick movements all look fine … so definitely take this up with DJI.
Usually … a flip at take-off is a prop on the wrong corner trying to descend when the others are ascending, but if that wasn’t the case I’m sure the onboard (far more detailed … AND encrypted 
) logs will show what failed, and DJI can analyse them.
Much appreciated 
Could it have been sand in one of the motors?
Maybe doing a compass calibration removed the sand
I don’t fly near the sand for that very reason… The beach areas i use in that location are just stones. and I always take off from the drone placed on my drone case (all plastic) and i hand catch it when landing.
Shortly after that I re-located elsewhere and had no issues whatsoever. Maybe just a one off Gremlin?
Possibly something interfering with the compass then, I’ve had issues with concrete before
