One customer gave feedback that his Xhorse MQB48 Adapter won’t let him read VW clusters. And VVDI PROG software always prompts “Adapter invalid(00)”. He wonders if the issue is the connection.
Here is the Solution:
Supply 12V power to MQB Solder-free Adapter.
*Carefully follow diagrams, only XDNP82/ 84 MQB Adapter doesn’t need power adapter
Done!
Hope this could help!
Skype: xhorsevvdi.com
Whatsapp: https://wa.me/8613983756354
Whatsapp: 
Skype: