I've installed Unity 3D patch V4 with Vuforia version 7.0.47 and built a test project as described in the Ground Plane Tutorial. There is no ground plane marker appearing on the device and the content does not appear on a Samsung Galaxy A5 device. The same issue occurs on a Xaomi Redmi 4 device either.
In the tutorial you mentioned Unity patch 2 and Vuforia version 7.0.43. Is there any difference or compatibility issues in version 7.0.47 for Galaxy A5 devices?
Thank you in advance for your time.