Steps to solve the keyboard failure problem

In the process of using the computer, some system problems are definitely there, but the problems similar to keyboard and mouse are also very common. The keyboard and mouse may not be for them. Special attention, but in case the keyboard fails, sometimes it means you can't use the computer. Keyboard failure is a common problem. If your keyboard is new and the quality is good, there will be no problem unless you have some damage to the keyboard during the keyboard. In fact, the keyboard failure is not entirely due to the problem of the keyboard itself, computer system settings errors may also lead to keyboard failure. In short, keyboard damage and water intake, keyboard key loss, keyboard connection error, keyboard settings, etc. can cause keyboard failure, let us explain how to solve this problem when the keyboard fails!

First, some keyboard keys on the keyboard are out of order

The keyboard part of the keyboard is out of order. This situation is mostly caused by the failure of the internal circuit board of the computer keyboard. This phenomenon is generally caused by dirt on the circuit board or conductive plastic. Therefore, the two cannot be normally connected. It may also be because the keyboard plug is damaged, the line is faulty, the motherboard is damaged, the CPU is not working properly, etc., we can solve the problem by cleaning the check keyboard.

Steps for cleaning the keyboard:

1. Disassemble the keyboard. The keyboard must face down and the board should be up.

2. Open the circuit board, the circuit board is generally made of a film made of soft plastic, with the button cable engraved on it, and gently scrubbed twice on the circuit board with alcohol with a concentration of 97% or more. .

3. Check the conductive plastic of the button's malfunctioning part and use alcohol to scrub the dirt accumulated above.

4. Remove the dirt in the corners of the keyboard. The tool can use a brush, a small brush, etc., pay attention to the movement should be gentle.

5. Install the keyboard. This is to be sure to wait until the alcohol has evaporated before proceeding.

Second, modify the keyboard driver

Step 1: Click to open the "My Computer" property option, select the hardware tab, open the device manager, click to open & ldquo; keyboard options & rdquo The default keyboard driver is “Standard 101/102 Key or Microsoft Natural PS/2 Keyboard”. Right click and select Update Driver, the Hardware Update Wizard will appear, select “ Install from the list or specified location (Advanced), click “Next”, select “ Do not search. I have to choose the driver I want to install. Click “Next” to enter the “Select device drivers to be installed for this hardware” page to remove the checkbox “Show compatible hardware” before the small tick. Select “Japanese PS/2 Keyboard (106/109 Key)" in the "Standard Keyboard Model" column, click “Next”, pop-up  Update Driver Warning>, click “ ”. “ Confirm device installation & rdquo; window continues to point & ldquo; is & rdquo;.

Step 2: Click the “Start” menu, click “Run”, enter “ldedit”, open the registry, and then expand “HKEY_LOCAL_MACHINE/SYSTEM/ControlSet001/Control/Keyboard Layouts&rdquo” ;, open “E00804”, you can see the sub-item in the right sub-item, double-click to open the item, and change the "kbdus.dll” in "value data" .dll”,“OK” OK, then restart your computer.