VVDI Key Tool Plus BE Key Error Failed to Open Device IR Reader?

Problem:

Tried to change VVDI Benz BE key frequency with Xhorse VVDI Key Tool Plus but failed. It failed to open device IR reader. Any solution?

 

Solution:

If using VVDI BE key, try to read BE key information.

If fails to read BE key info, the IR reader sensor is damaged.

The device requires repair.