Xhorse released a new MLB solder free adapter kit to work with VVDI MLB Tool for VW, Audi, Lamborghini, Bentley and Porsche MLB key programming. No need to solder, just use a plier to remove 2 capacitors.
Obdii365.com here shows how to use/connect the MLB solder free adapters.
Step 1: Remove capacitors on original key.
Connect VVDI MLB Tool with key tool plus via OTG converter.
Go to Immo programming->Audi->Select by type->MLB immobilizer systems.
Select corresponding key type and check wiring diagram.
Remove components (2 capacitors) of original key as the diagram shown.
2. Connect MLB solder free adapter with original MLB key board
Make sure the pins on the adapter match the contacts marked on the diagram.
Fasten the buckle.
The short side of the buckle faces upwards, and the long side marked in white faces downwards.
3. Connect MLB adapter with MLB tool
After connecting Xhorse MLB adapter with key, connect the MLB adapter with the MLB tool.
Pay attention to the orientation of the adapter so that it ends up in the sensing area.
Step 4: Now you can add a spare MLB key.
Check the key programming guide here (ignore the soldering part).
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