I had the same problem and solved it by using the original short cable, (reversable mini usb to usb C), and using a 1 foot extension cable usb C female to usb C male to connect to my Samsung tablet. Evidently there is something proprietary going on with the usb mini plug to the controller.Hi Folks
I have been unable to purchase a lead on Amazon that will successfully connect a Mavic Mini MR1SD25 Controller to Samsung Galaxy Tab S5e.
Any pointers would be much appreciated!