VVDI Audi BCM2 Solder-free Adapter is designed for reading encrypted BCM data without soldering.
Here is a review: read BCM with vvdi adapter, Audi A7 2011.
Start from the BCM module in the trunk on the right side.
Connect two cables to VVDI BCM Adapter.
All connection to BCM PCB and VVDI PROG Programmer.
Go on to get two files, upload them, the server will comes to you with immo data file and service data file.
Then we could register keys using VVDI2.