Many of the parts in the electric smarties are linked to the vehicle via the chassis number. To use it in another car, you have to clone the software of the defective device to the replacement device.
If you cannot do this yourself, you can send the defective part to me and I will take care of the software. It can take up to 6 weeks before you get the functional device back. For a surcharge, you can also get the defective part back.