For iOS user:

When your app is launched, the app will ask you about your firmware and camera types and please select the correct option of your camera. Then the app will show all camera found nearby.

您的App启动时，请根据提醒和您的相机类型选择正确的固件和相机类型,软件将会显示找到的附近的相机。

Note: for user outside China, please don’t use China firmware option.

注意: 中国之外的相机只能选择国际版，中国用户可刷成国际版。