How to Solve VVDI MLB Tool Key Data Calculation Failed 4?

 Problem:

Xhorse VVDI MLB Tool failed to collect original key data for a Skoda Octavia.

Error “Key data calculation failed4, error code 0”.

Possible reasons and solutions:

During data collection, the PQ value is low which means the calculation signal quality is poor.

Do the following:

1). Replace it with a shorter USB cable to connect to the computer.

2). Place the key properly during data collection, as shown in the figure.