Many users of Xiaomi, Redmi and Poco smartphones face a situation where the standard level of backlighting of the display is not enough for comfortable use of the device. HDR-It's often the case that even with a max slider twisted out, the screen still seems dull compared to competitors or previous models.
The reasons may lie in the software limitations of the MIUI or HyperOS shell, as well as in the peculiarities of the light sensors. In this article, we will discuss all the available ways to get the most out of your screen, including hidden settings, developer mode and hardware features.
Don't ignore the problem of low brightness, because it's not just a matter of convenience, it's also a matter of eye health. Excessive visual strain when trying to see content on a dim screen can lead to rapid fatigue. We'll look at methods that can help make the image juicy and sharp without compromising the autonomy of the device.
Basic setting of display parameters
The first step should always be to carefully check the standard settings, as many users overlook important options that are enabled by default. MIUI It offers flexible control tools that are often blocked by energy saving algorithms. → Screen to access the main controls.
The key here is the brightness slider. Make sure it's set to maximum. However, just moving the slider is not enough. The same menu often hides the Auto Brightness switch, which can aggressively lower the backlight in an attempt to save battery power even if it bothers you. Turning off autobrightness is the fastest way to force the screen to shine at maximum, regardless of external conditions.
Note the Color Style or Read Mode tab. Sometimes the problem is not the physical brightness of LEDs, but software filters. For example, the included Paper or Warm spectrum can create the illusion of a dull screen by adding a yellow or gray hue. Switching to the saturated or standard style often visually increases the perceived brightness of the image.
⚠️ Attention: Long-term use of the screen at maximum brightness in the dark can harm the retina of the eyes. Use the "Vision Protection" function or reading mode in the evening to reduce the load.
💡
Try calibrating the screen through the Color Correction app in the Developer Menu if standard profiles seem too pale or unnatural.
Autobrightness and sensor management
The light sensor algorithms in Xiaomi smartphones are often conservative, and the system tends to extend battery life, so even in bright sunshine, it may not raise the backlight to its physical limit, and to fix this, you need to train the sensor or take full control.
The process of learning to be bright is simple, but it takes time. You have to manually set the desired level of lighting in different lighting conditions: with the lights on in the room, at the window during the day and on the street. The system remembers these values and in the future will strive for them. If you constantly manually increase the brightness, the algorithm must adjust to your preferences.
If the automatics are not working properly or if they are "jumping", it is better to turn it off.
- 🔦 Open the notification curtain and find the brightness slider.
- ☀️ Click on the Sun icon or the letter “A” to deactivate the automatic mode.
- 📈 Manually set a comfortable level of lighting.
- 🔒 Lock the screen and unlock again to check if the settings are still in place.
Sometimes the sensor can be closed with a low-quality protective glass or contaminated, in which case the phone "thinks" it's in the dark and doesn't brighten up, wipe the top of the screen where the sensor is located, and remove the thick protective glass if it overlaps the sensor.
Secrets of the developer mode and engineering menu
For advanced users who don't like standard methods, there are deeper ways to set up. Android's developer mode allows you to interfere with the graphical interface and display power management. To activate this mode, you need to click 7 times on "Version". MIUI» on the phone menu».
When activated, the "Additional" menu will have a "Developers" option, and here we're interested in graphics-related options, such as turning off hardware acceleration or changing color gamut settings can affect brightness perception. However, beware: changing system settings can lead to unstable interfaces.
There is also a dialer for the engineering menu. Code ##64663## opens the CIT test mode. You can check the light sensor and screen. In some models, RGB calibration is available through the engineering menu, which allows you to change the white balance and make the screen visually brighter by shifting the color spectrum towards cold colors.
The dangers of the engineering menu
The table below shows the main parameters that can be found in the advanced display settings and their impact:
| Parameter | Location. | Impact on brightness | Risks. |
|---|---|---|---|
| Autobrightness | Settings/Stork | Automatic reduction/increase | Unpredictable behavior |
| Color style | Screen settings | Visual perception of contrast | Color distortion |
| Dark subject matter | Settings/Stork | Reduces overall luminosity | No. |
| Reading mode | Screen settings | It greatly reduces brightness and changes the spectrum. | Unsuitable for photo |
Impact of energy saving on lighting
One of the hidden reasons for the dim screen is its aggressive energy-saving policies. Xiaomi smartphones are known for their optimization, which sometimes works to the detriment of the user. When the battery charge drops below 20% or the "Energy Saving" mode is turned on, the system forcibly limits the maximum brightness of the backlight.
In Super-Economic mode, the screen can become virtually unreadable in the sun, the system turns off background processes and reduces refresh rates, but the most noticeable thing for the user is the drop in brightness. To check if that's the case, just plug the device into the charger. If the brightness has recovered, then the problem was the battery limitations.
It’s also worth checking the settings of specific applications. Some versions of MIUI have a “Background Activity Limit” feature that can affect how video players or navigators work, preventing them from asking for full screen brightness to save resources.
⚠️ Attention: Constant operation at maximum brightness with the high performance mode on can lead to overheating of the case and trottling of the processor, which will reduce the temperature of the processor. FPS play.
☑️ Checking the energy settings
Problems with HDR and video content
Modern AMOLED screens installed in Xiaomi’s flagship models support HDR10+ technology. When playing compatible content (for example, on YouTube or Netflix), brightness can dynamically change frame by frame.
Sometimes users notice that the normal brightness is normal on the regular menus, but when you start the video, the screen suddenly dims or becomes too bright. This is normal behavior of Tone Mapping. However, if the video looks faded, check the video player settings. The standard MIUI Video player has its own image enhancement settings that may conflict with the system settings.
Also, not all applications support full brightness ranges, and some third-party readers or browsers may not ask for the maximum backlight level from the system, limiting it to 80-90% of what is possible, in which case only a third-party brightness control app that has its own overlays can help.
💡
HDR-content requires maximum brightness to properly display light areas, so the system can ignore your manual settings at the time of video playback.
Hardware restrictions and PWM-modulation
The physical side of the matter is also not to be forgotten: panels from different manufacturers (Samsung, Tianma, CSOT), which Xiaomi uses in different batches of phones, have different peak brightnesses. Budget Redmi models can produce 400-500 nits, while flagships of Xiaomi Pro or Ultra series reach 1200-1500 nits.
In addition, there is the problem of PWM (pulse-latitude modulation) at low brightness, the screen can flicker, which some users perceive as “dullness” or discomfort. New models have a feature called “Flicker Protection” or switching to DC Dimming, which makes the glow more uniform, but can slightly change the color temperature.
If you've tried all the software techniques, and the screen still seems dimmer than a friend with the same phone, it might be a matter of matrix degradation or factory defect. LEDs lose their brightness over time, and it's a natural aging process. OLED-panels.
⚠️ Note: The use of non-original displays during repair often leads to the fact that the brightness will be much lower than the factory, and the autobrightness may not work at all.