Xhorse VVDI2 Full Says Software Not Have Authorization Solution

Problem:

Just activated MQB NEC35XX license for Xhorse VVDI2. Now the vvdi2 is full version now. But vvdi2 software still says it does not have authorization. Any solution?

Solution:

In this case, update vvdi2 firmware in Xhorse upgrade kit.

Then try again.