Why can t you type when the three dots on the keyboard are lit up?

Unplug it and replug it, then reboot it.

The keyboard is broken.

Numlock is a small numeric keypad lock, Capslock is a capital letter lock, Scroll Lock key first appeared on the 83 keyboard of IBM's PC XT model and the 84 keyboard of the AT interface, and now this key not only appears on the 101 keyboard of the PC, but also on the "enhanced" keyboard of the Apple machine. This key was very useful in the DOS era, due to the display technology at that time, the screen was limited to 80 characters wide and 25 lines of text, and it was very convenient to use this key to scroll through the page when reading documents. With the development of technology, the Scroll Lock key has become less and less useful in the Windows era, but it is still somewhat useful in Excel:

If you use page turning keys (such as page up and page down) with scroll lock turned off, the selected area of the cell will move accordingly; Conversely, if you want to scroll without changing the selected cells, just press scroll lock.

Press Shift+Ctrl to press out the input method, then press Caps Lock to turn off the capitalization, and finally press Scroll Lock

That's it.

You don't have an input method? There should only be one light on

The reason is that the small numeric keypad is locked, or the "enable sticky keys" function is turned on, you can press the "numlock key" to unlock it, and all the keyboards are locked and you need to turn off the paste key option to restore the keyboard, the method is as follows:

Operating Equipment: Dell Computer.

Operating system: win10

1. Windows key + R key to open the running window, enter "control" to open the control panel, as shown in the figure below

2. Open the control panel and select "Big Icon" at the "Category" button on the right, as shown in the following figure

3. Find the "Ease of Access Settings Center" option and click to enter, as shown in the figure below

4. Select the "Make the keyboard easier to use" option, as shown in the figure below

5. Cancel the tick option of "Enable Sticky Key", as shown in the following figure:

The keyboard light is only a sign that the keyboard can be powered on, and you have to try to see if it can be turned off, such as using the capslock key or numlock test. If it can be turned off normally, it means that the keyboard is good, and at least some of the keys are normal. You can test the next one in DOS to see which keys are good and which ones are bad.

If the light on the keyboard can not be extinguished normally, it may be that the keyboard is plugged incorrectly, for example, it is connected to the mouse interface, if it is not this low-level error, it is generally a short circuit of the keyboard (for example, pouring water on the keyboard to cause a short circuit), and the suspended animation state generally refers to the crash or caused by frequently pressing the keyboard, and the restart will return to normal. If you confirm that the keyboard is broken, let's buy a new one, which is cheap

The reason is that the small numeric keypad is locked, or the "enable sticky keys" function is turned on, you can press the "numlock key" to unlock it, and all the keyboards are locked and you need to turn off the paste key option to restore the keyboard, the method is as follows:

Operating Equipment: Dell Computer.

Operating system: win10

1. Windows key + R key to open the running window, enter "control" to open the control panel, as shown in the figure below

2. Open the control panel and select "Big Icon" at the "Category" button on the right, as shown in the following figure

3. Find the "Ease of Access Settings Center" option and click to enter, as shown in the figure below

4. Select the "Make the keyboard easier to use" option, as shown in the figure below

5. Cancel the tick option of "Enable Sticky Key", as shown in the following figure:

1. First of all, check whether the numlock key on the keyboard has been opened, after turning it on, you can generally use the keyboard to enter Chinese characters normally.

2. If you still can't type Chinese characters, you should consider whether there is a problem with the keyboard driver at this time. Open the Start icon in the lower-left corner of your computer.

3. Right-click [Computer], and then click [Properties].

4. Open the computer properties page, and then click Device Manager.

5. On the Device Manager page, click Keyboard, right-click PS 2 Standard Keyboard, and select Properties.

6. Click [Driver] - [Update Driver] on the keyboard properties page, when the driver is updated, restart the computer, and then you can successfully solve the problem that the keyboard cannot type.