I suffered a demoralising crash and the file obviously "corrupted" as it was not "closed".
No appication could recover, nor a terminal procedure on MacOS nor could the Phantom 4 reboot.
Success achieved by putting into an Osmo and recoding another video onto the same card.
I guess any working DJI drone may enable recovery of file.
Crash occured after random, uncontrolled rapid ascent to max altitude and then a rapid, uncontrolled descent.  Awaiting respnse from DJI to ascetain issue.

Really sorry to hear about the crash, you have contacted our tech support and synced your flight records, right? Our engineers will analyze the data then contact you about the reason why it happened.

Unfortunately the Mac is quite poor at recovering damaged video files, there are many more tools and better ones available for the PC platform.

DJI Natalia Posted at 2016-11-3 14:14
Really sorry to hear about the crash, you have contacted our tech support and synced your flight rec ...

Thanks for those two tips and sympathy Natalia.  I did send a request to support but am yet to get a response after 7 days.  In the meantime I was able to "uncorrupt" the video file and am yet to download the data.  I am still in countryside where phone/internet reception poor.  I have just looked at how to recover data and will attempt soon.  The drone is still in warranty.   I am a novice but the behaviour of the drone was erratic and unpredictable.   Good flights were suddenly challenging as the drone would rapidly descend or as with the final slightly also rapidly ascend.   The last flight it shot to the maximum height and then came down.  Notably the recorded video indicated a tumble, I can only guess a motor switch off, but it appears to have regained power as it "kissed the ground" it was upright and motors spinning.

photomac8 Posted at 2016-11-6 12:24
Thanks for those two tips and sympathy Natalia.  I did send a request to support but am yet to get ...

Do you happen to have the ticket number that would have been generated from emailing the Support team?

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