I had the exactly the same issue with my Galaxy Tab S 8.4 running DJI pilot ver 1.0.5.
The last 3 flights can't be sync ( stopping around 30%.)
Probably the main issue are the pictures taken during the flight,something like " time out" are blocking the sync process. due heavy size.
if you delete the local cache,,(erasing your last flights) the sync process continues,,but you will loose your last flights.
I still can not update ..... I delete all the flights and start from scratch, but nothing . I also tried with 3 different android devices ..... Same results .
Any idea from DJI ???? Is it bug????
I got the same problem. I'm using Samsung Galaxy Tab S 8.4.
I'm using latest pilot application version 1.0.6.
I reported to life-chat and asked for a help. Life-chat asked me what android I'm using. I replied I am using Samsung Galaxy Tab S.
A life chat person replied that "Samsung Galaxy Tab S is not in a support list and I have no idea".
That is not the answer that I have expected from an official support.