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The keyboard is opened, causing the laptop keyboard to fail

The keyboard is opened, causing the laptop keyboard to fail.
Pressing some of the letter keys on the keyboard, a bunch of numbers are printed, and the corresponding letters are not displayed, but the other keys are no problem, indicating that the keyboard of the notebook computer is opened, causing some keyboard keys of the computer to malfunction.
Solution: Press and hold the Fn and Num Lk keys simultaneously to close the laptop’s keypad.
The use of an external keyboard causes the laptop keyboard to malfunction.
When the laptop external keyboard and the notebook come with the keyboard at the same time, there will be a problem that the laptop keyboard fails. This is the setting of some notebook manufacturers. In order to prevent the user from accidentally touching the laptop’s own keyboard and causing misoperation when using the external keyboard, the manufacturer sets it in the system. When the laptop uses an external keyboard, the system automatically shields the notebook’s own keyboard.
Solution: Put the external keyboard off or disconnect the link, the notebook can be used normally with the keyboard.

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