The problem that the keyboard does not work in BIOS is usually noticed by users when reinstalling the operating system, when it is necessary to set the boot priority, or in case of changing additional settings of the primary input / output system. What is the reason for this phenomenon and how to deal with it, now it will be considered. Just want to note that not everything is so bad. There are several basic methods to solve the problem in a few minutes. Consider them.
The keyboard does not work in BIOS: reasons
Many users pay attention to the fact that in a normally functioning operating system such situations, although they are observed, are very infrequent. For the most part, this concerns the BIOS.
Among the main reasons for the appearance of such a situation, most experts distinguish the following:
- physical damage to plugs and wires;
- wrong connection;
- An old computer without support for a connected device
- incorrect BIOS settings.
Problems related to physical defects or damage will not be considered now. In an extreme case, if the keyboard does not work in BIOS, you can verify the operability of an external device of the PS / 2 or USB standard quite simply by connecting it to another computer terminal. If everything is okay on it, you need to look for the reason in your system unit (more precisely, in the sockets and ports to which you are connecting).
What to do first?
With regard to troubleshooting, the first thing to check is the connection.
In the case of USB-keyboards, it is rather difficult to make a connection via the corresponding port (although sometimes it may be that the keyboard belongs to the USB 3.0 standard, but connects to the USB 2.0 port).
But most often the appearance of such a situation is more typical for keyboards of the old standard PS / 2 standard. You need to make the connection, taking into account the fact that the colors of the keyboard plug and the corresponding jack must match (they have a purple color). However, in this case it is rather difficult to make a mistake.
How to enter BIOS (keyboard does not work)?
When you try to configure the parameters of the primary system, which can often be the cause of failures, the question of access to them arises along the way, because in most cases you can’t do without a keyboard to call BIOS or navigate through the settings sections.
But there is a solution. For example, we have a situation when the keyboard on a laptop does not work in BIOS. You can enter the settings system in several ways. Some laptop models are initially equipped with special buttons on the panel, with the help of which the BIOS settings section is called. In particular, this applies to Lenovo products, Sony VAIO (ASSIST button), etc.
The second access option when the keyboard does not work in BIOS will be connecting its external analogue via a USB port. But here you need to remember that it is desirable to connect an external keyboard without power, and only then turn on the device to boot.
Reset
The previous solutions can in a sense be called universal, however, and they may not give the desired result. This can be observed when the USB keyboard does not work in BIOS. This problem is only due to the fact that some kind of failure has occurred in the system itself.
In this case, a complete reset of the set parameters should be made. Any, even an old, stationary-type computer allows you to get to the motherboard on which the CMOS battery is installed. You just need to pull it out of the socket for a few minutes, insert it back and try to enter the settings by enabling the terminal to boot.
Setting the correct parameters
But here there are pitfalls. In the case of USB keyboards, the problem may be the deactivated support for such devices in the primary system itself.
In this case, you will have to connect the PS / 2 keyboard or, if possible, enter the BIOS on the laptop by pressing a special button, then find parameters like Legacy USB Support or USB Keyboard Support and look at the set value. If the reason is really this, it will be set to Disabled. It must be changed to Enabled and save the changes on exit (F10, Y). A reboot will follow. Perhaps this is exactly the way to fix the problem.
What could be more?
According to reviews, sometimes a keyboard failure can be associated with damage to the RAM strips, malfunctions of the power supply, shorting of some contacts directly on the motherboard, port malfunction, etc. There is no way to do without a complete diagnosis of the entire system.
Finally, there may also be a problem with the BIOS system itself, which is a violation of its operation or obsolescence. In this case, you will have to do a complete flashing, but this process is unsafe, and without special knowledge an ordinary user can cause irreparable damage to the computer, as a result of which the PC will stop working at all.
Instead of a total
Based on the foregoing, we can conclude that, regardless of the current situation, apart from physical damage or defects, the problem of keyboard inoperability and access to the primary system is solved quite simply.
But there can be many reasons for this. And they are not always associated exclusively with physical defects. In most cases, for the same USB devices it is enough to simply turn on support or make a general reset. This helps in 99 cases out of 100.
Finally, if we talk about a global problem when the keyboard does not work at all, you can determine it immediately on the welcome screen when you turn on the computer terminal (it will be reported that the keyboard is missing). In this case, you will either have to check the correct connection, or use the methods proposed above until the replacement of the failed device with a new one.