Modern Xiaomi and Redmi smartphones are equipped with advanced displays that can work in a wide range of frequencies. Users often wonder how to change the hertzok on Xiaomi, either to improve the smoothness of the interface, or, conversely, save battery power. Standard settings of the shell MIUI or HyperOS do not always provide full access to these parameters, hiding them from the eyes of the average owner.
In this article, we will discuss all available ways to control the refresh rate of the screen, you will learn how to activate hidden modes through the engineering menu, what are the limitations of the screen. AMOLED-And the matrices and why trying to set non-existent values can lead to problems. We'll also discuss the impact of hertz on device autonomy and game performance.
Changing the technical parameters of the display is a delicate process that requires caution. Incorrect settings can lead to unstable system operation or image artifacts. However, following proven methods, you can significantly improve the visual experience of using the gadget. Let's see what tools are available to fine-tune your smartphone.
The concept of hertzovka and its impact on the smartphone
The screen hertz, or refresh rate, is measured in Hertz (Hz) and shows how many times per second the display image is updated. The standard value has long been 60 Hz, which means 60 frames per second. Xiaomi's current flagship models offer 90 Hz, 120 Hz and even 144 Hz, making interface animations and page scrolling incredibly smooth.
However, the high refresh rate requires more CPU and GPU resources. This directly affects power consumption. If you rarely play dynamic games or don't appreciate super-smooth animations, reducing the hertz can be a great way to extend the life of a smartphone without recharging. Some users are specifically looking for ways to lock the screen to 60 Hz, even if the device supports 120 Hz.
⚠️ Warning: Forced change of the hertz to values not supported by the physical screen matrix can lead to a black screen or incorrect display of colors. Always check the specifications of your model.
It's important to understand the difference between native panel frequency and software interpolation. Native frequency is the physical limit that a matrix can give out without loss of quality. Software crutches can mimic high values, but this often leads to desynchronization of the touchscreen and the image. So "change the hertz" often means switching between the standard modes of operation of the panel, laid down by the manufacturer.
Standard frequency settings in MIUI and HyperOS
Before we get to the complex methods, it is worth checking the standard features of the system. In recent versions of the shells from Xiaomi, frequency management has become more flexible. Usually the settings are along the way Settings → Screen → Screen refresh rate. Here, the default, 60 Hz or 120 Hz options can be available to the user.
Some models, especially the Redmi Note and Xiaomi Lite segments, use Adaptive Refresh Rate technology, which automatically changes frequency depending on the content on the screen, for example, when reading static text, the hertzock drops to a minimum, and when scrolling the social media feed, it increases dramatically, which is a smart trade-off between smoothness and battery.
If only one option is available in the standard menu or the switch is missing, it means that the manufacturer has blocked the choice, in which case the system decides when to increase or lower the frequency, and this restriction can only be circumvented through hidden engineering menus or third-party applications, which are discussed below.
- 📱 Standard path: Settings → Screen. → Frequency of update.
- 🔄 Adaptive mode: Save charge by changing Hz on the fly.
- 🔒 Blocking: On budget models, choices may not be available.
- ⚡ Game mode: In Game Turbo, frequency is often fixed at maximum.
Using the CIT Engineering Menu to Change Parameters
The CIT (Customer Integrated Test) Menu is a hidden diagnostic section available on most Xiaomi devices, which allows you to check the health of all components, including the display. Although direct change to the global hertz is rare here, it is here that you can find hidden test modes of the matrix.
The most common code is ##6484#. Once entered, the system will automatically open the test interface, and you need to be very careful: changing unknown parameters can recalibrate the screen or touch screen.
☑️ Checking before entering CIT
Inside the CIT menu, find a item associated with Display or Screen. Some firmware has a Frame Rate test that shows the current frequency. If you're lucky, you'll find a mode-switch option, but most often this section is just for diagnostics. Trying to change the hertz to shiaomi through CIT often ends up just looking at the information, not changing it.
| Parameter | Description | Risk of change |
|---|---|---|
| Refresh Rate | Current frequency of update | Low (read only) |
| Color Temp | Color temperature | Medium (calibration knock) |
| Gamma Value | Brightness curve | Tall (color distortion) |
| Touch Sensitivity | Touch sensitivity | Medium (non-responsive) |
Hidden opportunities through terminal applications
A more advanced way to change the hertz to Xiaomi involves using ADB (Android Debug Bridge) and terminal applications. This method requires you to include USB debugging in the Developer Menu. You'll need a computer and an installed set of Platform Tools.
There are commands that can force you to set a specific refresh rate if the screen driver allows it, such as a command that can look like a change in value in the system configuration file. However, starting with Android 11 and up, access to these files is severely restricted by root rights.
adb shell wm size
adb shell wm densityAlthough these commands change resolution and density, they indirectly affect rendering. APK-files such as "Second Screen" or modified versions of SetEdit. peak_refresh_rate or min_refresh_rate change its meaning.
Risks of using SetEdit
If you don't have superuser rights, chances of success are low. HyperOS security actively blocks unauthorized changes to display settings. So this method is more suitable for enthusiasts with an unlocked bootloader and Magisk installed.
The effect of energy saving mode on screen frequency
Often users are unaware that activated power saving mode automatically limits hertz. At Xiaomi, this behavior is standard: when you turn on "charge savings", the system forcibly reduces the frequency to 60 Hz or even lower to stretch the battery life.
If you notice that you can’t change the hertz to a higher one, check if you have this mode active. It’s also worth looking at the settings of the Battery Saver app, which may limit background activity and processor performance, making high refresh rates meaningless.
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To quickly check for the energy saving effect, turn on Flight mode and turn off all background processes. If the Hertzov has not changed, then the limit is set at the system kernel or driver level.
In some use cases, like navigation or reading, the reduction in hertz is really subtle to the eye, but it's tangible to the processor. The smart system regulates this parameter itself. Forced powering 120 Hz into energy saving mode is impossible without deep modification of the system.
- 🔋 Saving mode: Blocks high Hz automatically.
- 🎮 Game Turbo: On the contrary, unlocks the maximum for games.
- 🌡️ Overheating: At high temperatures, the system will shed Hz for cooling.
- 📉 Low charge: Below 15-20% frequency may be limited.
Problems and Solutions in Changing Hertzov
Trying to change the refresh rate to unsupported values often results in artifacts. You may notice a flickering screen, stripes appearing, or the image disappearing completely. In this case, you should not panic. Usually, the system itself restarts in 15-30 seconds, resetting the settings to the factory settings.
A more serious problem is a “bootloop” that happens if the modified system file is damaged or contains a critical error, and Xiaomi owners are helped by entering Recovery mode and performing a Wipe Data reset, which will delete all user data but bring the phone back to life.
⚠️ If after experiments with hertz screen stopped responding to touch, but the image is – try to connect USB-mouse-wise OTG-This will allow you to control your smartphone and roll back changes.
Another common problem is the touchscreen desynchronization, touching at one point and reacting at another, which is a sign that the touchscreen driver is not coping with the new polling frequency, and the solution is to reset or reflash the standard values.
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The safest way to change the hertz is to use the MIUI standard settings. All other methods carry the risk of unstable operation of the device and require the ability to restore the system.