I'm author of OpenLiveStacker app: https://github.com/artyom-beilis/OpenLiveStacker for Android.
Several users already reported same issue with ASI120 - General Error when try to open camera.
int camId = 0;
ZwoCamera camera = new ZwoCamera(camId);
ASIConstants.ASI_ERROR_CODE ret = camera.openCamera();
The returned code is 16 - general error.
What can be the reason?
Can this be related to power supply for the device?