Porsche Cayenne BCM mask 2M25J add key and all keys lost shares the same procedure using Xhorse VVDI Prog and VVDI2.
Read D-Flash, make dealer key with VVDI2.
Pinouts on vvdi prog diagram. just follow the diagram and instructions. It’s all there.
Must remove 0 ohm resistor, Chrystal and cut one pcb track. No big deal.
Soldering must be done very carefully and in high quality – these motorola’s are extremely sensitive. Also 12V must be attached.
Read and save D-flash.
Better read both D and P flash just to be saved.
Then connect xhorse vvdi2. Open Porsche in main window. Load D-Flash and learn keys to vehicle.
Many prefer to prepare dealer key and learn to vehicle. Then only read MCU and no write back to MCU. Read only and learn by OBD. OBD works perfectly to learn on vehicle.
If you prefer write mcu approach, check Step 3 here,
http://blog.vvdishop.com/vvdi-prog-vvdi2-add-porsche-boxster-gts-2016-smart-key/
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