By accident I placed a DJI MAVIK sd card in to a go pro hero 3+. When I have opened GoPro Quick and connected the GoPro device, It appears to have deleted the .MOV files that the DJI MAVIK recorded to the SD card in the first instance.

Is the anyway that I can recover my DJI MAVIK files?

Did you try viewing the files from a PC?

Your videos may still be cached on your cell phone.

It works 100% :

Bucefalo Posted at 2018-1-5 12:14
It works 100% :

Nice find dude...

Tviscomi Posted at 2018-1-5 12:18
Nice find dude...

yes that's a good one.. and software is 100% free.. it works much better than those expensive tools out there !
@funcshn did you try it ?? found those files?

You can also try RePicvid to recover deleted video files from sd card. It allows previewing files, and you only need to pay for the software when you are satisfied with the scanning results.

Connect and check the SD card in PC. If you are still not able to view any of your files, you might have to recover your data using a good SD card recovery software like stellar Phoenix photo recovery software. try to scan and see if you are abe to view your data. It's free till that point as far as I know.  Hope it Helps!