According to your description:

You can't know your machine information because you didn't provide the detailed model of the machine.

If your machine has a keyboard area, you can try pressing NUM.

The lock can have a numeric keypad.

You can check the model on the back of the notebook.

CODE code, such as NP270e5v-X05CN, is the detailed model of the notebook. Please provide the detailed model of the machine so that you can make an accurate inquiry.

Samsung knows to provide you with high-quality solutions and answer your questions attentively, hoping to get your satisfactory evaluation.