The reasons for the failure are as follows:
One, the battery is dead
Although the keyboard is a consumable, the chance of damage is very small, especially some wireless keyboards, which are of very good quality. If you find that the wireless keyboard suddenly fails, and the key light does not blink, it is mostly caused by the battery.
There are two kinds of wireless keyboards now, one is the installation of the No. 5 battery, the other is the lithium battery block, but no matter which kind, the use of time is limited, once the battery is exhausted or low to a certain degree, the keyboard will fail.
Replace the battery or charge the keyboard, then use it again and it will return to normal.
2. It is not properly connected to the computer
Nowadays, the wireless keyboard transmission is mostly Bluetooth transmission, and many users do not like to use the keyboard that comes with the notebook, so they use a keyboard with Bluetooth function to connect with the computer.
If it is this connection, the wireless keyboard failure, mostly because the computer turned off the Bluetooth function caused, as long as the computer's Bluetooth function will return to normal.
Because there is data that has been successfully matched before, as long as the computer turns on the Bluetooth function, it will automatically retrieve nearby Bluetooth devices, and then connect, and after the connection is successful, the wireless keyboard can be used normally.
3. Receiver failure
There are some wireless keyboards that do not have Bluetooth function, such wireless keyboards need to be connected to the computer through a receiver two-thirds smaller than the USB flash drive, and under normal connection, some receivers will flash.
If you find that the wireless keyboard is out of order, check the status of the receiver for the first time, if you find that the red light of the receiver does not blink, mostly because of the receiver failure, unplug the receiver again, and then change a USB interface to plug it in, the keyboard may return to normal.
As an aside: In theory, the chance of damage to the parts of such keyboards is very low, and most keyboards are not as complex as you might think. Therefore, after finding that the wireless keyboard fails, restart the computer first, and then exclude it one by one according to the above method, you can find the cause of the problem.