The Samsung tab S2 doesn't seem to work well with OTG. You can force it to work by rebooting, but this is not very convenient as you have to do this every time.
Occasionaly I am also using Litchi, and that wouldn't even connect with OTG.
Last week I installed a custom rom (LineageOS 5.1) and now my Samsung is connecting flawlessly with OTG every time, just by plugging the cable and even for Litchi it works now great.
Plus I have Android Oreo (8.1) on my device!

Our apologies for the inconvenience. I'm glad that you were able to solved the issue. Just a friendly reminder,  the third party apps are not tested and if you crash your drone with those apps, you are more likely to be responsible for the accident. Thanks for your understanding.

It's not a flaw in DJI software. It's the Samsung that behaves not as expected.

I'd say as closer to original android, as better it works.
Samsungs Touchwiz/ Experience is not really the simplest UI, methinks.
In the beginning (8, 9 month ago) the Go4 app had some trouble on android 8, but that seems to be gone, now.
Also on android 7 it seems to work well.
(Android 8 on oneplus, amdroid 7 on Huawei media pad)

A34 Posted at 2018-9-8 05:36
It's not a flaw in DJI software. It's the Samsung that behaves not as expected.

Hi. just for some reference. Kindly check the photo below for the list of fully compatible phones/tablets. Thank you.