Connect BCM2 adapter with vvdi key tool plus and BCM2 module
In key tool plus, select IMMO Programming->Audi->Select by type->5th Immobilizer system-> Read BCM2 data->Prog read encrypted BCM2->A6L/A7/A8 2015- all keys lost (0824/0825/0827)->Adapter Method
Step 1: Identify module information
Save module information
Step 2: Read Immo Data
Calculating immo data online
Save Immo data
Press Write to write data back to bcm2 module.
Now you can make dealer key and learn key with the immo data.
Restore BCM2 module and install vehicle, check whether the vehicle status is normal.
After it is normal, go to the 5th generation immo system interface to load the immo datae to generate the dealer key with vvdi key tool plus.