How to improve screen brightness on Xiaomi: the complete guide

A dim screen on a bright sunny day can be a real problem that prevents you from using the device comfortably. Owners of Xiaomi and Redmi gadgets often face a situation where standard settings are not enough to comfortably view content on the street, this is especially true for models of the mid- and budget segment, where maximum brightness is limited by the specifications of the matrix.

There are many software ways to get around the hardware limitations and get the most out of your display. In this article, we will look at not only standard setting methods, but also secret engineering codes, as well as the features of the autobrightness in the MIUI shell. You will learn how to properly calibrate the screen to make the image clear and saturated even in direct sunlight.

You don't have to go straight to radical methods like flashing or using third-party root-rights software. Often the problem is with the wrong energy-saving settings or the dirty light sensor, and let's take all the optimization tools available in order, going from simple to complex.

The first thing you need to do is to rule out the physical causes of low brightness, check if you have a low-quality protective film on the screen that can significantly reduce light, and also make sure that there is no dust, grease or cover at the top of the display where the light sensor is located.

Basic brightness setting through the notification curtain

The most obvious and quickest way to increase brightness is to use a slider in the notification curtain. But the MIUI shell has its own features in this control. If you just move the slider, the system may not switch to manual mode, but only adjust the current level of auto-tuning.

To activate manual mode, tap and hold the brightness slider for 1-2 seconds. Then the Auto button will appear, which will be active by default. Press it to turn off automatic adjustment. Now you can manually set the maximum value that the hardware of your smartphone will allow.

Keep in mind that when the autobrightness is turned off, the battery will be consumed faster, especially if you set maximum values. The screen is the most energy-intensive element of any mobile device. Therefore, after using the phone in bright sun, it is recommended to return the brightness control to the system or reduce the level of backlight in the room.

⚠️ Warning: Prolonged screen operation at maximum brightness in manual mode can lead to overheating of the device and accelerated burnout of the matrix (the appearance of static traces of the interface).

In some versions of MIUI, the slider in the curtain may behave unstable after system updates. If you notice it resets or doesn't respond to touch, try restarting the smartphone. This often resolves software conflicts related to the operation of the display module.

Fine tuning of autobrightness and sensors

Automatic brightness control is a useful feature that adapts the screen to external conditions. However, Xiaomi’s algorithms sometimes work incorrectly, making the screen too dim even in good lighting. To “train” the smartphone to respond to light correctly, you need to follow several calibration steps.

Go out into a bright light (like a window or outdoors) and wait until the screen is dim. Then manually raise the brightness to a comfortable level and hold the slider for a couple of seconds to fix the value. Repeat this procedure 3-4 times in different light conditions. The system will remember your preferences and adjust the algorithm of the sensor.

Also worth checking is the settings in the Advanced Settings menu. Go to Settings → Screen → Read Mode and make sure it's turned off if you don't need an e-paper simulation.This mode often lowers brightness and changes the color gamut, which can be perceived as a malfunction.

If autobrightness works in jerks, try to clear the data of the Settings application (this will not reset your personal data, only system parameters). → Annexes → All applications → Settings → Clean up → Clean everything. Once the sensors are rebooted, the calibration will begin again.

Engineering menu and hidden display parameters

For advanced users who want to access hidden settings, there is an engineering menu, a powerful tool that allows you to change the screen calibration options that are not available in the normal interface. Be careful: improper changes can lead to incorrect display of colors or unstable device operation.

To enter the engineering menu, open the Phone app and dial the code ##6484##. If the code doesn't work, your firmware version may be blocking that access. In the menu that opens, look for the item associated with the display (often called "Display" or "LCD").

You can find broken pixel tests and color temperature adjustments here. Some models allow you to change the gamma curve, which will visually brighten the image without increasing the backlight. However, don't change the values unless you understand their purpose. You'd better use the factory reset function on the same menu if the colors have become distorted.

It is worth noting that newer versions of Android and MIUI often block developers from accessing deep settings through codes for security reasons, and in such cases, you have to rely on standard tools or third-party applications, which will be discussed below.

Using applications to enhance brightness

If you don't have enough system tools, Google Play's specialized apps come to the rescue, and they work by putting an extra light filter over the image, artificially brightening the pixels, a software trick that really helps in sunny weather.

One of the most popular solutions is Brightness Slider, or something like Super Brightness, which allows you to raise the brightness above the standard maximum, and they work by inverting colors or amplifying the light flux through a software interface.

• 📱 Super Brightness is a simple app with a single slider, allowing you to increase the brightness to 200% of the nominal value.
• 🔆 Brightness Slider – Adds a handy desktop widget for quick access to advanced settings.
• 🎨 Screen Balance – not only regulates brightness, but also allows you to fine-tune the color temperature for eye comfort.

It is important to understand that using such programs increases the load on the processor and battery, and that at maximum software amplification, you can lose detail in light areas of the image.

⚠️ Attention: Brightness applications require permission to be displayed over other windows. MIUI This permission must be given manually in the "Permissions" menu" →"Other permits".

The influence of the theme and wallpaper on the perception of brightness

Often the problem with a dim screen is not the backlight settings, but the visual design of the interface. Dark design themes, which are now in vogue, can create the illusion of low brightness, especially if you use black wallpaper. OLED-In screens, black means the pixel is off, which saves battery but reduces overall illumination.

Try temporarily changing the wallpaper to lighter and brighter. Using white or light gray backgrounds in the MIUI theme settings can visually brighten the screen, and it’s worth checking if Dark Theme mode is activated in Settings → Screen.

The theme settings have a dark mode adaptation option. If it's on, the system tries to obscure even apps that don't natively support the dark theme, and turning it off will return the standard bright coloring of the interface, which can solve the visual discomfort problem.

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Use live wallpaper with bright colors, but avoid static white images on the wallpaper. OLED-screens to prevent pixel burnout in the long run.

Comparison of methods of increasing brightness

To make it easier for you to choose the right method, we have prepared a comparison table that will help you assess the pros and cons of each way to increase the brightness on Xiaomi devices.

As you can see from the table, the safest and most balanced method is to calibrate autobrightness correctly, which allows the system to manage its resources by itself, providing comfort in different conditions, and software amplifiers should be used as a temporary solution.

Frequently Asked Questions (FAQ)

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Optimal brightness is the balance between eye comfort and device autonomy. Don't chase maximum values unnecessarily.