It’ll need to select “Prog read - encrypted BCM2” instead of “Read by OBDII” on tablet. As I don’t have those Audi BCM2 adapters, I’ll go on using OBD method.
It may help:
How Audi BCM2 Solder-Free Adapter Works with Xhorse VVDI Key Pad?
Connect Xhorse VVDI Key Pad into OBD2.
The steps including read & save BCM data, make dealer key & key learn.
Read & Save BCM Data
Immo programming >> Europe >> Audi >> Select by type >> Fifth immobilizer system >> Start programming >> Read BCM data >> Read by OBDII >> Read BCM2 data (OBDII)
Insert working key into ignition and switch on before continue.
If working key is already in car, take out and insert in again(also switch START/STOP button).
If lost all working key, open the headlight, and step on the brake before continue.
VAG number and key info were read out.
Disconnect BCM module from power for 2-3s and reconnect again.
Trying to reconnect to BCM...
Reading data success.
Save here >> Rename >> OK
Save file success.
Make Dealer Key
Make dealer key >> A4L, A5, Q5 add key or lost all key - Don’t need working key >> OK >> Load data file
Put a key to be programmed into Xhorse VVDI Key Pad slot, then continue.
Wait processing until 100%...
Make dealer key success.
Key learn >> Input the number of keys to be learned:1 >> Load data file >> OK
Insert dealer key into ignition(or nearby ignition coil).
Open the headlight, step on the brake before continue.
Insert every key into ignition in turn.
Once a key is learned successful, X/Y in the dashboard, X will be added 1.
If only have ignition coil, please stop and start the START/STOP button after X added 1.
Warning: after all key is successful learned, press button “OK”.
Finally test the key, it does work.
Will share more Audi programming reviews once getting the Xhorse BCM2 Solder-free Adapter Package.