How to change the screen hertz of Xiaomi phone

Modern smartphones Xiaomi and Redmi have long ceased to be just devices for calls, becoming powerful multimedia centers. The key parameter that determines the visual comfort and smoothness of the interface, became the frequency of updating the display. Many users, buying a gadget with support for high hertzovka, are faced with the fact that the default system may not use the full potential of the matrix, saving battery power.

Changing that setting instantly transforms the experience of using a gadget: animations become more responsive, scrolling through social media is smooth, and games increase the number of frames per second, but not everyone knows exactly where these settings are hidden or how to activate them, if the manufacturer decided to hide them from the eyes of the average user.

In this article, we will take a look at all the ways you can manage frame rates on Xiaomi devices, learn how to manually switch modes, whether to trust automation and what hidden engineering menus can come in handy in this situation, and this guide will help you get the most out of your smartphone without having to get root rights.

The concept of refresh frequency and its impact on the experience of use

The refresh rate of the screen, measured in Hertz (Hz), shows how many times per second the image on the display is redrawn anew. The standard value for many years was 60 Hz, which means 60 frames per second. However, modern flagship and mid-budget models of Xiaomi are equipped with matrixes with support for 90, 120 and even 144 Hz, which theoretically doubles the smoothness of the picture.

The difference between 60 and 120 Hz is visible to the naked eye, especially when you move quickly through menus or in dynamic game scenes. The human eye is able to perceive changes up to 200-250 frames per second, so increasing the hertz makes the picture more realistic and pleasant to perceive. This is not just a marketing ploy, but a real step in improving the ergonomics of the device.

But high hertz requires more computing power from the CPU and the GPU, which leads to higher power consumption, which is why MIUI or HyperOS often have smart algorithms that dynamically change frequency depending on the content, and understanding how your display works will help you balance performance and autonomy.

⚠️ Warning: Constant operation of the screen at maximum frequency (for example, 120 Hz) can reduce the smartphone’s time from one charge per 15-20%.

Standard display settings in MIUI and HyperOS

The easiest and safest way to change the hertz is to use the standard operating system tools. Xiaomi developers provide users with several management options that are publicly available. First, you need to go to the main settings menu of your device.

Find the visual section. The path may vary slightly depending on the firmware version, but the logic remains the same. You'll need the Settings item. → Screen or Settings → Display. That's where the main levers of control of the matrix are concentrated.

Inside the menu, you'll see an option that might be called "Refreshment Frequency," "Hertzovka," or a more descriptive name, and the system will offer you a choice between a standard value and an increased frequency, sometimes as sliders or a drop-down list with specific numbers.

• 📱 Standard (60 Hz) - maximum energy saving mode, the interface works at a base pace.
• 🚀 Tall (90/120 Hz) – forced on the maximum frequency in all applications and on the desktop.
• ⚡ Auto (Dynamic) - a smart mode where the system decides when to raise the hertz for smoothness, and when to lower for savings.

Once you select the right setting, the screen can blink, and the changes will take effect instantly. If you choose Auto mode, the system will analyze the application that is running. For example, when reading an e-book, the hertz will drop to 30-60 Hz, and when you start the game, it will instantly grow to a maximum, which is the best option for everyday use.

Step-by-step instructions for switching modes

For those who prefer clear algorithms, the following is a detailed guideline that is relevant to most current Xiaomi, Redmi and POCO models running Android 11, 12, 13 and later. Make sure you have enough battery power before you start, although changing the settings is not an energy-intensive process.

First, unlock the device and find the Settings icon (cogs). In the list that opens, look for Screen. If you have settings search enabled, you can simply type the word frequency or hertz into the top search bar, which will greatly speed up the process.

Then, tap on "Update Frequency." You'll see the selection menu. It's important to understand that having a 120Hz option depends on the physical capability of your matrix. If the phone only supports 60Hz, the switch may be missing or inactive.

Once you have selected the desired mode (e.g., High), the system can alert you to a possible increase in battery consumption. Confirm the action. Now you can go to the menu and rate the smoothness of the animations. If the interface has started to twitch or warm the case, you better go back and choose Auto or Standard mode.

Compatibility table for modes and models

Not all Xiaomi smartphones respond equally to changing display settings. Below is a table showing which modes are typically available for different device classes.

As you can see from the table, devices with matrices type LTPO They have the advantage of being able to change the refresh rate over a very wide range (from 1 to 120 Hz) with little or no delay, making them the most energy efficient when Auto is on. IPS-Budget models often only have a choice between 60 and 90 Hz, or only fixed 60 Hz.

It is worth noting that some applications may ignore system settings, for example, video players often set their own frame rates corresponding to the video file, in which case changing the system hertz will not have a visible effect within a particular application.

Hidden Opportunities and Engineering Menu

If standard methods of changing the hertzel fail or the desired item is simply not on the menu, you can try to turn to deeper settings of the system. However, this requires special care. Interference with the operation of the engineering menu can lead to instability of the device.

One way to do this is to use codes to enter the test mode, and you can type ##6484## (CIT Menu) into the dialer, and here, in the Version or Display section, you can sometimes find information about the current frequency or switch test modes, although this rarely changes the system parameter permanently.

A more advanced method involves using ADB (Android Debug Bridge) via a computer, which requires enabling USB debugging in the Developer Menu. With the command line, you can send a signal to the system to change mode, but success depends on having the appropriate drivers and access permissions in the firmware.

There are also third-party apps from Google Play that can change the hertz, but on current versions of Android (starting with the 10th), they rarely work, as Google has closed access to these APIs for applications without root rights.

Optimization and Impact on Autonomy

The main enemy of high hertz is the battery. When the screen is updated 120 times a second, the processor and graphics chip work harder, consuming more power. If your smartphone's running time during the day is critical to you, you should think about optimizing it.

Auto mode is the best compromise. It allows for smooth menus and games, but reduces the load of static content. If you notice that the phone is running too fast even in this mode, try forcefully setting 60 Hz. The difference in smoothness after a couple of days of use will become less noticeable, and the time will increase.

Also worth considering is the brightness of the screen: the combination of maximum brightness and high hertz is a "death blow" for the battery. On a sunny day, it is better to rely on automatic brightness adjustment, and leave the hertzovka in adaptability mode.

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For maximum autonomy during the trip, turn on the power saving mode: it will automatically limit the screen refresh rate to 60 Hz, even if the settings have a different value.

Remember that some “heavy” desktop wallpaper with live animation can keep the processor on top of it all the time, negating savings efforts. Static, dark wallpaper (especially on AMOLED screens) will help to save charge.

Addressing common problems

Users often face a situation where, after updating the firmware, the settings are reset or become unavailable. MIUI/HyperOS. First of all, try just to restart the device - this is a classic, but effective method of solving software glitches.

If the problem persists, check whether Extended Memory mode or aggressive battery optimization for specific applications is on. Sometimes the system blocks high hertz in the background applications to save resources. Go to the battery settings and make sure that the desired programs are not limited.

In rare cases, resetting all settings to factory (without deleting data) helps, but this is an extreme measure.Be sure that the device has the latest version of the software installed, as new security patches and system updates often fix the bugs associated with the display.

⚠️ Warning: If the screen starts flashing or artifacts appear after changing the hertz, immediately return the previous settings. This may indicate hardware incompatibility or overheating of the plume.

Remember, the physical limit of your smartphone matrix cannot be exceeded programmatically. If the specifications are stated to be 90 Hz, then no hacks will make it 120 Hz, but only lead to unstable operation.

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The most stable operation and balance between smoothness and battery provides the "Auto" mode, which is built into modern versions of MIUI and HyperOS.

Frequently Asked Questions (FAQ)