PSA BSI EEPROM, PIN and Key Learning — Compatibility Support 1.2

Use this thread for Peugeot or Citroen BSI identification, FTDI interface setup, EEPROM or flash read-size checks, PIN retrieval and key-learning troubleshooting. Include the model, year, BSI supplier, part number, interface and exact error; never post VIN, PIN, full dump or key data.

Supported models, backup workflow and the verified package are here: