Follow vvdiprog wiring diagram to connect bcm2 with vvdi.
You should remove the 0 ohm resistor.
Read ID, Read D-flash and save
Solder free way. VVDI Prog Audi BCM2 solderless way should be performed only after you get instructions in VVDI2.
BCM2 D70F3634/3381 solderless wiring diagram
For detailed operation guide, check the previous post: How to use Xhorse Audi BCM2 Adapter with VVDI2 + VVDI PROG?