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.
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There is a judgment question about the high number of Shandong junior college students. The third exa