Owners of budget smartphones often wonder whether it is possible to improve the smoothness of the interface, and is no exception to the popular Xiaomi Redmi 9C. The screen is the first thing that the user interacts with, and its responsiveness depends on the overall impression of the gadget. Standard frequency of 60 Hz for many seems insufficient against the background of flagships that support 90 or 120 Hz.
In this article, we will discuss in detail the technical capabilities of the display model NFC and without NFC, and discuss the real ways to influence the parameters of rendering. It is important to note immediately that the hardware dictates its rules, and software crutches may not give the desired effect.
You will learn about standard customization methods, hidden engineering menus, and the risks of trying to squeeze more out of a matrix than it can. We will look at why the physical limit of the matrix is 60 Hz and what happens when you try to get around these limitations.
Technical characteristics of the Redmi 9C display
Before you start setting up, you need to clearly understand what hardware we are dealing with.The Redmi 9C smartphone features a 6.53-inch IPS LCD panel with a resolution of 1600x720 pixels. This is a baseline focused on efficiency and autonomy, rather than high performance in games.
The refresh rate of the screen, or hertz, determines how many times a second the image on the matrix is updated. The manufacturer's specification clearly states a value of 60 Hz. This means that in one second the picture changes 60 times, which is the standard for most budget devices.
Attempts to modify this setting software often run into a physical display controller. The hardware simply cannot generate a higher frame rate, even if the system tries to. OLED-screens where adaptive frequency is possible, fixed synchronization is used herein.
⚠️ Warning: Attempts to force values above 60 Hz in hidden menus can lead to artifacts on the screen, complete disappearance of the image or “bootloop” (cyclic reboot).
It’s also worth considering that the MediaTek Helio G35 processor installed in this model has limited potential as the PowerVR GE8320 graphics accelerator.It struggles to cope with heavy tasks even at standard settings, so increasing the herzing will only add to the system’s load.
Standard settings of the MIUI interface
The MIUI shell provides the user with a set of customization tools, but they are limited to the functionality allowed by the manufacturer. The standard settings menu does not have a direct slider for selecting the hertz, since the screen does not support variable frequency.
However, there are related settings that affect visual smoothness and perception of interface speed. Optimizing animations can create the illusion of faster system operation, which indirectly affects the subjective perception of hertzovka.
To access the basic display settings, you need to go to Settings → Screen, and you can find brightness, color temperature and read mode settings, but not frame rates.
- 🔍 Check the “Advanced” section in the screen settings for hidden zoom options.
- 🎨 Change the color scheme to “Saturated Colors” to improve visual perception.
- 📱 Turn off Dark Mode if it causes delays in rendering the interface on your version of the software.
It is important to understand the difference between frame rate (FPS) in games and screen refresh rate (Hz). Graphics settings in apps may limit FPS to 30 or 60, but the physical hertz matrix will remain unchanged.
Use of Engineering Menu and ADB
For more advanced users, there is the ability to interact with the system through USB debugging and ADB commands (Android Debug Bridge), which allows you to access hidden system parameters that are not visible in the normal interface.
To start, you need to activate the developer mode. Go to Settings → About Phone and quickly click 7 times on the MIUI build number. After that, a new option will appear in the menu “Advanced Settings” or “Additional”, where you need to select “For developers”.
Turn on the USB Debugging Toggler. Now connect your smartphone to a computer with the driver installed and the ADB platform tools. You can enter commands through the console to check the current display parameters.
adb shell wm size
adb shell wm densityThere's a myth that the adb shell wm size command can change the hertz. It actually changes the resolution. Attempting to change the frequency through settings put global often doesn't work on MediaTek chips without root rights and a modified kernel.
⚠️ Note: Making changes through ADB If you don't understand the syntax accurately, you can have a software failure.
☑️ Preparation for work with ADB
Applications for FPS modification
You can find a lot of apps on the Google Play store that promise to increase FPS and hertz, and they work by changing system configuration files or using overlays that emulate frame interpolation.
But on the Redmi 9C, the efficiency of these programs is extremely low, because they can’t make the matrix run faster, but only put additional strain on the processor by trying to generate intermediate frames by software.
Some utilities require root rights to access the build.prop file. Making changes to this file can theoretically change the rendering parameters, but the risk of “bricking” the device is extremely high.
| Annex | Root is required. | The real effect on the Redmi 9C | Risk of failure |
|---|---|---|---|
| FPS Meter | No. | Monitoring only | Low. |
| GFX Tool | No. | Game settings | Medium. |
| SetEdit | Yes. | Change of system flags | High-pitched |
| SecondScreen | Yes (ADB) | Change of permission/DPI | Medium. |
Using third-party software often leads to unstable touchscreen operation. The system may start to miss touches or, conversely, register false presses due to desynchronization of input streams.
Why do apps lie about boosting hertz?
Optimization for games and animations
Since it is impossible to physically raise the hertz on the Xiaomi Redmi 9C, it is worth focusing on optimizing the existing 60 Hz. Reducing the load on the GPU will stabilize FPS in games, which will make the picture more smooth.
In game settings, always choose minimum or average graphics settings. Disabling shadows, smoothing and post-processing will reduce the number of dropped frames, which is critical for budget devices.
It's also worth using Xiaomi's built-in Game Turbo game accelerator, which redistributes system resources to prioritize a running application, and can block background processes.
- 🚀 Enable Performance mode in the battery settings before starting the game.
- 🧹 Clear RAM from background apps through the multitasking menu.
- 📉 Reduce the rendering resolution in the game settings if such option is available.
Another important aspect is temperature. When heated, the Helio G35 processor resets frequencies (trollite), which leads to a sharp drop in FPS. Removing the case or using a cooler can help keep 60 frames stable.
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Use Developer Mode to scale the animations. Set the values of Windows Animation, Transition Animation, and Animator Duration to 0.5x. This will make the interface visually faster without changing the screen herring.
Risks and possible problems
Any interference with system files or using unofficial overclocking techniques carries risks. For the Redmi 9C, the most likely problem is a software failure that requires flashing the device.
Attempts to change the frequency through the engineering menu can cause the screen to stop displaying the image, even though the backlight will burn, in which case you can restore access only through Recovery or Fastboot mode.
In addition, unstable system operation can lead to accelerated battery discharge and overheating components. the power controller may not cope with the increased requirements if the system tries to force the display.
⚠️ Warranty: The device does not cover damage caused by software interference and root rights.
If the phone starts to behave incorrectly after the experiments, the first thing you do is reset it to factory settings, which will return all system parameters, including the refresh rate of the screen, to the original state.
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The physical hertz screen of the Redmi 9C can not be changed, as this is a limitation of hardware, all methods are aimed only at optimizing the system operation within 60 Hz.