How to change the screen hertz on the Xiaomi phone

Modern Xiaomi and Redmi smartphones are pleasing not only with powerful processors, but also with high-quality displays with a high refresh rate. Screen Hertz is a parameter that determines how many frames per second a device can display. Standard 60 Hz are gradually becoming a thing of the past, giving way to smoother 90, 120 and even 144 Hz. For users, this means more pleasant scrolling of tape, smooth interface animations and increased comfort when playing.

But not all Xiaomi owners know how to control this setting. In some cases, the system automatically switches between modes to save energy, and in others, the user has to look for hidden settings. The refresh rate directly affects the perception of the picture, making the movements of the cursor and transitions between the menu instantaneous. If you want to squeeze the most out of your gadget, you need to understand the intricacies of the display setting.

In this article, we will take a look at all the ways to change the hertz, from standard menus to engineering codes, why it is not always worth keeping the maximum values on all the time, and how to find a balance between performance and autonomy. Understanding these processes will allow you to adapt your smartphone to your personal preferences.

What is a hertzovka and why change it on a smartphone

Hertz, or screen refresh rate, is measured in Hertz (Hz) and shows the number of changes in an image per second. The higher this figure is, the smoother the picture on the screen of your Xiaomi or Redmi. If at 60 Hz the eye notices small delays in fast text scrolling, then at 120 Hz the movement becomes almost indistinguishable from reality. This creates a “live” interface effect.

Many users are wondering if they should change the standard settings at all. The answer depends on your priorities. High herring requires more computing resources from the GPU and updates the matrix more often, which leads to increased power consumption. However, the visual comfort it provides often outweighs the additional battery costs.

⚠️ Warning: Constant operation of the screen at maximum frequency (for example, 120 Hz) can reduce the battery life of the smartphone to 20-30% Depending on the model and intensity of use.

There are several types of arrays used in Xiaomi phones, and each responds differently to frequency changes. OLED and AMOLED panels usually support a wider range of settings compared to budget IPS screens. It is important to understand that software-based augmentation of hertz where it is not supported by hardware is impossible without replacing the display module.

Checking supported display modes

Before you get into the settings, you need to make sure that your device is physically capable of operating at an increased frequency. Not all Xiaomi models are equipped with 90 Hz or 120 Hz screens, even if they look modern. Often marketing tricks make you think that the smoothness is higher than it really is.

You can find out the specifications through the official specifications on the manufacturer's website or on the menu of the device itself, and there are third-party applications that read information directly from the display controller, which is the most reliable way to avoid illusions.

• 📱 Go to Settings. → About the phone and find a model of the device.
• 🌐 Enter the model in the search engine with the inscription “specs” or “characteristics».
• 🔍 Note the line “Refresh Rate” or “Refresh Rate».
• 🛠 Use the app. AIDA64 or Device Info HW data-hard.

If the specification is 60 Hz, software methods can only mimic the smoothness, but the actual hertz will remain the same. Hardware restriction cannot be circumvented. The tables below show examples of popular series and their capabilities.

The presence of adaptive hertz is an important nuance: in top models, the screen itself changes the frequency from 1 Hz to 120 Hz depending on the content. In simpler models, the switch only occurs between fixed values, for example, 60 and 90 Hz.

Standard configuration via MIUI and HyperOS menu

The easiest and safest way to change the hertz is to use the built-in shell tools. In the latest MIUI and the new HyperOS, the settings interface is more intuitive. You don't need superuser rights or a computer connection.

Usually, the switch you want is in the look section, and the system will offer you the options you can get if the screen supports them, and if you don't see the choice option, you've got default mode or Auto mode, which the system thinks is optimal.

To access the settings, do the following: first unlock the device and find the gear icon, then proceed sequentially through the menu, carefully reading the names of items, as they may be called differently in different regions of the firmware.

Settings → Screen → Update Frequency → Selecting a Value

In some cases, especially on global firmware versions, the item may be called Refresh Rate. If you have chosen the maximum value but feel jerks in the interface, try restarting the device. Restarting the system often applies the changes correctly, resetting the cached graphics parameters.

⚠️ Warning: After the refresh rate changes, it may take a few seconds to calibrate the touchscreen.Don't panic if the sensor responds with a slight delay in the first moments.

HyperOS has added even more flexibility, so that in some models you can set the herzov separate for desktop and running applications, saving you charge when you just look at widgets, and getting the most smoothness in games.

Activation of hidden modes through the engineering menu

Sometimes it happens that the hardware of a smartphone supports high hertz, but the manufacturer has blocked this feature in the software for a specific region or firmware version, in which case the engineering menu comes to the rescue, this is a hidden part of the system, designed for testing equipment.

It is accessed through a set of special code in the Phone app, and be careful that changing unknown parameters in this menu can cause the device to function unstable, and we will only consider the secure commands associated with the display.

To enter the engineering menu, use the code ##6484## or ##3646633#. Once you enter the combination, the menu will open automatically. Find the Single Item Test or Version section where the display settings may be hidden. However, a more effective method is to use ADB commands if the menu is closed.

• 🔧 Put the debugging on. USB on the Developer Menu.
• 💻 Connect your phone to a PC with installed ADB.
• ⌨️ Enter a command to check the current frequency.
• 📝 Write down the value before making any changes.

There's a command that allows you to force a certain frequency, if the screen driver allows it.

adb shell wm size

Page Display

If you own a MediaTek-based device, try entering the code ##3646633##, go to Hardware Testing → Display → Page Display. There may be a Set FPS. Choose the desired value and click Set. Remember that these settings are reset after rebooting if you don't save them to the system configuration file.

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If standard codes don’t work, try the Play Market’s MTK Engineering Mode app, which gives you access to hidden features of MediaTek processors without entering codes.

Using applications for FPS management

When embedded tools are powerless, third-party applications come to the rescue, and they can't change the physical hertz of the matrix, but they can optimize the system or force games to run in a certain mode, and this is especially true for gamers who care about frame stability.

One of the most popular tools is SetEdit, which allows you to edit SQLite databases, which can change the value of the variable that is responsible for the preferred refresh rate, but this method requires care.

There are also "accelerator" applications that clear RAM and turn off background processes so that the system can maintain high FPS in games. They don't change the screen hertz directly, but they help the processor not reset frames.

• 📲 Download SetEdit (Settings Database Editor).
• 🔍 Find a line. min_refresh_rate and max_refresh_rate.
• ✏️ Change the values to the ones you want (for example, 120).
• 💾 Save the changes and restart the device.

It is important to understand that the use of such methods can lead to conflicts in the system. MIUI actively fights against unauthorized access to system settings, so the application may not work without root rights.

⚠️ Note: Editing system tables through SetEdit without backing up can lead to a cyclic bootloop.Always backup before changes!

For users who don’t want to risk system stability, it’s better to limit their game modes. The Game Turbo (or Game Center) app often has performance priority settings that indirectly affect how high hertz is kept in games.

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Third-party apps are a compromise solution. They're effective for games, but it's more reliable to use standard settings or custom cores to permanently change the herring of the interface.

The effect of high hertz on battery and heating

Going 90Hz or 120Hz is not only a visual celebration, but it also puts a heavy strain on the components of a smartphone. The graphics processing unit (GPU) has to render one and a half to two times as many frames per second, which inevitably leads to increased power consumption and heat generation.

Owners of Black Shark or POCO gaming smartphones know that when you turn on the maximum settings, the device can significantly heat up even when you are not on the menu. This is a normal reaction of the system to increased performance. However, in everyday use, when reading text or watching photos, the difference in energy consumption may not be so noticeable.

The energy-saving technologies in today’s Snapdragon and Dimensity processors can quickly reset the herring when content is static. If you use responsive mode, the phone will switch to 60 Hz or lower when watching video (which is usually 24-30 frames per second) or reading books.

If you notice that the smartphone has started to discharge quickly or warm up in the upper part of the case:

• 🔋 Check the battery usage statistics in the settings.
• 🌡 Make sure that high hertz is not included for all applications.
• 📉 Try to reduce the frequency to 60 Hz per week for comparison.
• 🧹 Clear the system cache that may have swelled due to rendering errors.

The optimal solution for most users is to use automatic mode, in which case the smart system decides when to use smoothness and when to save charge. Manually changing the hertz is only meaningful in specific scenarios, for example, before a long trip without charging.

Frequently Asked Questions (FAQ)