Cannot see the live-view stream from H20 with Mobile SDK (FPVDemo)

Hi all!

I want to implement live-viewing Mobile app using M300 RTK with H20, so I clone the sample code (https://github.com/DJI-Mobile-SDK-Tutorials/Android-FPVDemo) and implement MSDK app according to tutorial (https://developer.dji.com/mobile-sdk/documentation/android-tutorials/index.html)

Though I can connect the MSDK to M300, I cannot view the live video stream from your DJI product's camera in Mobile SDK.

I have verified that I can see the live-view of the H20 using osdk sample code, so I think its not problem with wiring.

Then what's the problem?

Thank you for your support!