Method for personalizing a portable electronic device (SC, TK) having electric input means for receiving electric power from a manufacturing equipment, the method comprising a. loading an application into the portable electronic device, by a personalization machine during a personalization phase in which the portable electronic device is configured for a specific entity and storing the application in a memory of the portable electronic device, b. connecting electric input means (VCC, GND, ANT) of the portable electronic device (SC, TK) to electric output means (M_VCC, M_GND) of the manufacturing equipment in order to receive electric power from the manufacturing equipment, c. operating the application stored in the memory of the portable electronic device, i. to be triggered automatically when power is supplied to said electric input means (VCC, GND, ANT) by the electric output means (M_VCC, M_GND) of the manufacturing equipment, and ii. to communicate solely with entities internal to the portable electronic device (SC, TK) during the personalization phase of said portable electronic device, wherein the application is further set during said personalization phase iii. to automatically configure the portable electronic device (SC, TK) when said application is triggered, and iv. to be successfully executable at most once so that once the portable electronic device has been configured, the application is no longer executed; d. repeating steps a) to c) for a further application. a. loading an application into the portable electronic device, by a personalization machine during a personalization phase in which the portable electronic device is configured for a specific entity and storing the application in a memory of the portable electronic device, b. connecting electric input means (VCC, GND, ANT) of the portable electronic device (SC, TK) to electric output means (M_VCC, M_GND) of the manufacturing equipment in order to receive electric power from the manufacturing equipment, c. operating the application stored in the memory of the portable electronic device, i. to be triggered automatically when power is supplied to said electric input means (VCC, GND, ANT) by the electric output means (M_VCC, M_GND) of the manufacturing equipment, and ii. to communicate solely with entities internal to the portable electronic device (SC, TK) during the personalization phase of said portable electronic device, wherein the application is further set during said personalization phase iii. to automatically configure the portable electronic device (SC, TK) when said application is triggered, and iv. to be successfully executable at most once so that once the portable electronic device has been configured, the application is no longer executed; i. to be triggered automatically when power is supplied to said electric input means (VCC, GND, ANT) by the electric output means (M_VCC, M_GND) of the manufacturing equipment, and ii. to communicate solely with entities internal to the portable electronic device (SC, TK) during the personalization phase of said portable electronic device, wherein the application is further set during said personalization phase iii. to automatically configure the portable electronic device (SC, TK) when said application is triggered, and iv. to be successfully executable at most once so that once the portable electronic device has been configured, the application is no longer executed; d. repeating steps a) to c) for a further application.