How to Update Xhorse VVDI MLB Key with MLB Software

 Problem:

Successfully add a spare VVDI MLB key to an Audi Q7 2019 using VVDI MLB Tool and vvdi2.

After programming,press the buttons of the key, the light turns on for 3-4 seconds and then goes off.

Solution:

In VVDI MLB Tool software, go to Update Online->Upgrade OEM keys to update VVDI MLB key and try again.