I have the same problem. I used the code from this repository without modifications (only changed api key and package names, of course). DJI Pilot app can get the file list.

[Mac-sir]

I have the same problem. I used the code from this repository without modifications (only changed api key and package names, of course). DJI Pilot app can get the file list.

Value of currentFileListState is RESET before calling refreshFileListOfStorageLocation.

Formatting SD card didn't help.

Drone is Mavic 2 Enterprise Dual. Android Studio is 4.0.

Here are some logs:
2020-06-05 15:08:55.818 31972-32016/my.package E/my.package.MainActivity: Set cameraMode success
2020-06-05 15:09:05.823 31972-32368/my.package E/DJIFileListLoader: 10000ms内没有数据hit 重传 seq=0， timeoutCount=1
2020-06-05 15:09:15.826 31972-32368/my.package E/DJIFileListLoader: 10000ms内没有数据hit 重传 seq=0， timeoutCount=2
2020-06-05 15:09:25.828 31972-32368/my.package E/DJIFileListLoader: DJI loader timeout

Originally posted by @tapioko in #8 (comment)

[Mac-sir]

使用设备：御2双光
跑demo起来获取不到SD卡的媒体信息，报上述同样的错误，改成读取机载内存，出现同样的错误信息。您可以帮助我解除疑惑么？

[dji-dev]

Agent comment from Luce Luo in Zendesk ticket #36267:

尊敬的用户，

您好！感谢您联系DJI 大疆创新。
为了快速收集问题细节，麻烦您详细填写如下表格。
https://formcrafts.com/a/dji-developer-feedback-cn

在收到您的详细细节信息后，我们将会进行快速处理。

非常感谢您的理解与配合，祝您生活愉快！

Best Regards,

DJI 大疆创新SDK技术支持