Why do some laptop keys malfunction?

There are several reasons and solutions for notebook key failure: 1. Keyboard driver failure; find the "Keyboard" option in the "Control Panel", switch to the hardware page, click Properties, switch to the driver page, Click Update Driver. 2. The motherboard I/O chip is damaged; just replace the chip. 3. Dust accumulates inside the keyboard; open the keyboard and wipe it with alcohol cotton to remove the dust.

Several keys on the notebook are malfunctioning, which may be caused by the keypad being turned off, the keyboard driver, dust accumulation inside the keyboard, or a motherboard I/O chip failure. For details, please refer to Solution:

1. The numeric keypad may be malfunctioning:

Observe whether the indicator light on the keyboard is always on. If it is not lit, press the Caps lock key to open the numeric keyboard.

2. Keyboard driver failure may cause keyboard failure:

You need to update the keyboard driver. On the desktop, start - Control Panel, find the keyboard options, switch to the hardware page, click Properties, and switch Go to the driver page and click Update Driver. After completing all the steps of the hardware update wizard, restart the computer and modify the corresponding values ​​in the registry: "Start" "Run", enter "regedit", open the registry, the specific path is as follows: "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Keyboard Layouts".

3. The accumulation of dust inside the keyboard may cause malfunction:

Due to the accumulation of dust on the circuit board or conductive plastic inside the keyboard, the circuit cannot be connected, causing some keys to malfunction. After unscrewing the screws and opening the keyboard, scrub it with high-concentration alcohol cotton to clean the conductive plastic in the malfunctioning part. You can replace the conductive plastic on the infrequently used keys to the damaged part, and clean the corners of the keyboard other than the conductive plastic and circuit board. Use a soft-bristled brush and wait until the alcohol evaporates completely before reinstalling the keyboard.

4. The notebook motherboard I/O chip may be damaged:

The motherboard I/O chip is responsible for notebook keyboard input. Damage will cause partial failure of the keyboard. It is recommended to repair or replace it after-sales.

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