How to increase the brightness of the screen on the Xiaomi phone

The problem of low brightness is often critical in sunny weather or in bright artificial light. Owners of Xiaomi, Redmi and POCO smartphones often notice that even at maximum the screen seems dim compared to competitors, this can be due to software restrictions, energy saving settings or calibration of the matrix.

There are many ways to get around factory limits and get the most out of the display. Screen brightness affects not only reading comfort, but also the power consumption of the device. Customizing display settings correctly will allow you to see content clearly in any environment without sacrificing autonomy at the rest of the time.

In this article, we will discuss standard methods for improving the level of illumination, hidden engineering menus and specialized applications. You will learn how to turn off aggressive dimming when overheating and why the light sensor sometimes works incorrectly.

Basic settings of the MIUI and HyperOS interface

The most obvious, but often ignored, way is to carefully check standard sliders. In Xiaomi shells, the backlight control system has several levels. The base slider is in the notification curtain, but it does not always give full control over the hardware capabilities of the matrix.

To access the advanced settings, you need to go to the settings menu. Find Settings → Screen. This is where the main switches that affect the perception of the picture are located. Often users forget to turn off Autobrightness, which can understate the performance in order to save charge.

And in the same menu, you should look at Adaptive Brightness, which uses light sensor data to adjust the image, and if the algorithms don't work properly, the screen will appear dim even in a bright room, and manual adjustment in this case gives a more predictable result.

And let's not forget the temperature, because when you're using it, the processor gets hotter, and the system forces the maximum brightness to protect the components, which is a normal behavior, but you can minimize it by removing the case or by reducing the load on the processor.

Advanced settings and reading mode

One of the hidden reasons for low brightness is activated reading or paper screen mode.This feature, designed to reduce eye strain, often adds a yellow or gray filter, which visually reduces contrast and brightness. Check the status of this mode in Settings → Screen → Reading mode.

If the read mode is active, try changing its settings. In some versions of MIUI, you can choose Classic mode, which darkens the picture less aggressively, and it is also worth checking if the activation schedule of this feature is included, which may work at the wrong time.

DC Dimming is designed to reduce screen flickering at low brightness levels, but can affect color reproduction and saturation perception on some models. Experiment with this parameter if standard methods do not help.

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Turn on the option “Increase brightness in bright light” in the screen settings, if it is available in your version of the firmware – this will force to raise the level of backlight in the sun.

Flicker-sensitive users should be careful about turning off DC Dimming, but if your goal is maximum brightness, testing this parameter is necessary. Sometimes switching between PWM and DC modes gives a noticeable difference in perceived brightness.

Engineering menu and display calibration

For advanced users, there is an engineering menu where you can adjust color profiles and base matrix settings, and you can log in via the ##6484## code in your phone app, which allows you to perform tests and calibration.

In the screen testing section (usually labeled Display or Color), you can see the current RGB values. Changing these values requires caution, but allows you to compensate for the factory brightness gap in certain color channels.

There is also a hidden menu called by the code ##4636#. Although it is mainly designed for testing the phone, some firmware versions have additional display settings. Beware: changing unknown parameters can lead to unstable operation.

If you're not sure what you're doing, you'd better limit yourself to resetting your screen to factory settings on the same menu, which often helps if previous experiments with colors have led to incorrect displays and visual brightness declines.

Use of third-party applications

When system constraints aren't enough, Google Play apps come to the rescue, and programs like Brightness Slider or Screen Brightness Controller allow you to block the system slider and set values above the standard maximum, which is a software brightening.

The principle of these utilities is to overlay a white translucent layer or inversion of colors to achieve the effect of "superbrightness." It is important to understand that this does not change the physical power of the backlight, but only changes the gamut of the image. Third-party applications can consume additional battery power.

When using such programs, be sure to give them permission to "Overlap on other windows." Without this right, the application will not be able to control the brightness over running games or videos.

It is worth noting that newer versions of Android and HyperOS often have limited hardware brightness for third-party programs, and in these cases, the applications are less efficient, but still can give an increase in 10-15% of visible brightness due to software gamma correction.

Table: Comparison of methods for increasing brightness

To choose the best way, it is worth comparing the available methods for their effectiveness and safety. Below is a table that helps determine the tactics for your smartphone model.

As you can see from the table, software methods work well, but they require resources. Hardware constraints are the hardest to get around. The choice of method depends on whether you're willing to put up with increased energy consumption for screen readability.

Impact of Updates and Energy Saving

Often, a dim screen problem occurs after a firmware update, and developers can change the light sensor algorithms or introduce new restrictions for certification or energy efficiency, in which case cleaning the system cache or resetting the screen settings helps.

Energy saving mode is another hidden enemy of the bright picture: When the charge drops below 20% (or another threshold), the system automatically limits the maximum brightness. Check if the hard saving mode is activated, which blocks the slider at 50-60%.

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Energy saving mode is the most frequent software brightness limiter, which is easy to overlook when the battery is discharged.

If you notice that the screen began to dim after the update, it makes sense to look for information about the bugs of a particular version of MIUI or HyperOS. Sometimes the problem is solved by waiting for a patch or, conversely, a rollback to the previous version of the software.

Hardware limitations and burnout

And you can't rule out the physical wear of the matrix, because over time, the LEDs in the backlight degrade, and the maximum brightness drops. OLED-screens that have been used at maximum power for a long time.

Also, it is worth considering that the declared brightness in the specifications (for example, 1200 nits) is often the peak value for a small section of the screen (HDR-content, not the constant brightness of the entire display, and under normal conditions, the phone rarely gives out the declared numbers.

If the screen dimmed sharply and unevenly (spots appeared), this may indicate burnout of organic LEDs or problems with the plume, in which case software methods will not help, and you will need to replace the display.

⚠️ Attention: Using applications to “pump” brightness at maximum values over time can accelerate burnout OLED-matrices and lead to the appearance of residual images (burn-in).

Frequently Asked Questions (FAQ)

⚠️ Warning: Don't try to disassemble the phone to "upgrade" the backlight. Modern smartphones have tightly integrated screens, and any interference will result in loss of tightness and possible damage to the plumes.