Modern laptops from Chinese giant Xiaomi have long proven to be stylish and functional, but new users often face the odds of managing the hardware. One of these features is the keyboard backlight, which doesnβt always activate automatically when you first turn on or after you reinstall the operating system.
Unlike gaming laptops with bright RGB-illuminations, Mi Notebook and RedmiBook ultrabooks use monochrome white backlight, controlled software through special drivers or hardware key combinations. The lack of visible results when pressing buttons often causes panic, but in most cases the problem lies in the banal lock of the function or lack of the necessary software.
Hardware hotkeys and combinations
The fastest and most obvious way to turn on the backlight is to use the function keys on the keyboard itself. Xiaomi engineers have placed brightness control on the top row keys, but their work depends on the state of the modifier key Fn. Depending on the laptop model, the location of the backlight symbols can vary, so it is worthwhile to carefully inspect the keyboard.
This is usually done by a key called F10 or F9, which has a corresponding icon in the form of a keyboard with glowing beams. If a simple press does not work, you need to press the Fn key (located in the lower left corner) and hold it, press the function key. Some models, such as the Mi Notebook Pro, use double pressing to switch brightness modes.
- π‘ Find the key with the backlight icon on the keyboard (often this is the keyboard). F10).
- π Press it once or in combination with Fn to activate it.
- π Repeated pressing can change the brightness level or turn off the lights.
β οΈ Note: Some Xiaomi laptops do not have a backlight module, even if the keys are marked with the appropriate characters. Check the specification of your particular model on the official website before trying to activate.
It's also worth noting that Windows 10 and Windows 11 may have a keyboard filter feature that blocks quick presses. If the keys are late or not responding at all, check the special features settings. Sometimes short-term disconnection of the laptop from the network and battery extraction (if the design allows), which resets the static charge of the controller.
Software Management through Xiaomi Settings
If the mechanical switching didnβt work, itβs likely that the system doesnβt have proprietary software installed or it doesnβt work properly. Xiaomi Settings (or Mi Settings) is responsible for managing the peripherals in Xiaomi laptops. Without this component, the operating system may not recognize commands sent through the keyboardβs functional series.
You can check the presence and status of drivers through the Device Manager, but the more convenient way is to install the full driver package from the official support site. After installation, you need to restart the laptop to ensure that power and backlight management services are initiated correctly. The program interface often has a brightness slider that duplicates the functions of the keys.
In rare cases, a conflict of software versions can lead to the fact that the slider in the program will be active, and the keys will not. In this situation, it is recommended to completely remove the application through the control panel, clear temporary files and install a fresh version from the manufacturer's website, selected strictly according to the device model.
- π₯ Download the current version of Xiaomi Settings from the official portal.
- βοΈ Install the package and perform a mandatory system restart.
- ποΈ Check the presence of a slider control lighting in the utility interface.
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If the backlight didnβt work after reinstalling the drivers, try rolling the system back to the restore point preceding the latest Windows updates that may have disrupted compatibility.
Settings in BIOS and UEFI
The deep level of iron management is in BIOS (or UEFI). This is where you determine if you're going to put any voltage on the LEDs on the keyboard when you start up, and if you're down at firmware, no keyboard combinations in Windows will work. BIOS keystroke F2 immediately after turning on the laptop.
You should go to the peripheral or system tab (often called Advanced or System) in the settings menu, and look for a setting associated with Keyboard Backlight or KB Light. Make sure the value is set in Enabled. It's also worth checking if the power saving mode is activated, which turns off the backlight when you're running from the battery.
Changes to the BIOS require saving before you exit, usually with an F10 key, followed by a confirmation of action, and when you restart, the system will apply new parameters, and if you're not sure what you're doing, it's best not to change the settings marked as Default, so as not to break the system's tabWork.
β οΈ Note: Unwarranted change of unknown parameters in BIOS This can cause a laptop to work in an unstable way. Only change the settings that are directly related to the keyboard lighting.
Table of compatibility of models and methods
Different lines of Xiaomi and Redmi notebooks may have different implementations of the backlight function. Below is a summary table that will help you navigate the activation methods for popular models.
| Laptop model | Availability of backlight | Keyboard combination | Features |
|---|---|---|---|
| Mi Notebook Pro 15.6 | Got it (white) | Fn + F10 | Two brightness levels |
| Mi Notebook Air 13.3 | Optionally. | F10 | Only in the older versions. |
| RedmiBook 14 | There is. | Fn + F9 | Automatic light sensor |
| Mi Gaming Laptop | RGB | Through the PO | Management through Alienware or its software |
As you can see from the table, in game models, control is often put into a separate application with advanced customization options for colors. At the same time, the Air and Pro office models rely on standard system calls. If your model is not on the list, follow the general principles of driver search.
βοΈ Diagnostics of illumination
Problems with drivers and their solution
A situation where the keys are pressed, but there is no reaction, often indicates a driver conflict. ACPI or HID-Device Manager (devmgmt.msc) should check the Keyboards and System Devices section. The presence of devices with a yellow exclamation mark indicates a problem. Sometimes it helps to simply update the driver through the context menu.
A more radical but effective method is to remove the device from the Manager and then restart. Windows will automatically try to reinstall the driver at start, which often eliminates software errors, and you should also pay attention to the services responsible for the operation of hot keys.
Advanced users may need to check the registry or use the command line to reset power settings. USB-ports to which the internal keyboard is connected. -restoredefaultschemes Resets power circuits to factory ones, which can return functionality.
powercfg -restoredefaultschemesThis command requires administrator rights, and when you use it, you should restart the laptop, and it's safe, and it returns all power settings to their original state, removing potential locks.
Specificity of the operation of the light sensor
Many users don't know that Xiaomi laptops often have an algorithm that depends on external lighting. If the room is very bright, the sensor can programmatically turn off the keyboard's backlight to save energy, even if you turn it on with keys. Try to cover the light sensor (usually located next to the webcam) with your hand and press the switch on button.
This feature is designed to extend the battery life of the device, but it can be annoying if the laptop is under a bright lamp and the user needs backlighting, and you can turn off this automatic adjustment in the same settings Xiaomi Settings, finding the item "Automatically adjusting the brightness of the keyboard."
- π The light sensor can block the turn on in bright surroundings.
- π Cover the sensor with your hand to check the system response.
- βοΈ Turn off auto-adjustment in the proprietary utility for manual control.
Where is the light sensor?
Frequently Asked Questions (FAQ)
Why does the backlight only light up when Windows boots and then go out?
Can I change the color of the lighting on the Xiaomi Mi Notebook?
What to do if the Fn key is blocked?
Does the absence of Chipset drivers affect the operation of backlighting?
Is the lack of lighting a marriage?
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If none of the software methods helped, and the specifications of your model stated backlight, likely hardware malfunction of the plume or the LEDs themselves, which requires contacting the service center.
In conclusion, the backlight control on Xiaomi laptops is a balance between hardware and software settings. Properly installing drivers and understanding the logic of sensors allow you to fully control this aspect. We hope that these recommendations will help you to customize the device as comfortably as possible.