Problem:
Tried to add a key on 2021 Porsche Macan 1N35H BCM with Yanhua ACDP2. Pin detection passed, failed to decrypt chip. Tried three more times, all failed.
Restarted all devices, cleaned pins and reset adapter, continues to fail.
How do we get this fixed?
UPDATED:
Found a way to get this to read. Skip all the “auto” and “step by step” options at the top of the list. Go down towards the bottom of the menu and select Read EEPROM/D Flash. This seems to work well, then you can go to other menus to generate dealer key.