Mr. Igor Berezhinskiy, Ph.Doctor


Have you questions?

Hardware requirements

  1. Your smartphone must have OTG USB function
  2. Your USB camera must support Android system

Why the screen is black?

Assume that your gadget supports the OTG function and your USB camera is compatible with ANDROID. But the screen remains black.

Why? The reason may be in that you don't choice "Use by default for this USB device" in the dialog box.

This dialog box appears when you start the application with connected USB camera.

The appearance of this dialog box is guaranteed after the gadget to be restarted.

If the problem is not solved yet, then we recommend:

  • Delete existing old versions of the app
  • Restart the gadget.