How to reduce Xiaomi’s screen resolution: The Complete Guide

Owners of modern Xiaomi smartphones often face a situation where the hardware capabilities of the device do not keep up with the graphical requirements of new applications. The high density of pixels, which provides a crystal clear picture, is also the “Achilles heel” for the processor and battery. Decreasing resolution becomes an effective way to revive the performance of the gadget without buying a new one.

Standard Android settings or MIUI and HyperOS shells rarely allow you to flexibly manage this setting through a regular menu. However, there are proven methods to bypass restrictions. In this article, we will discuss safe ways to change image rendering, which will help reduce the load on the GPU and extend battery life.

Many users mistakenly believe that only engineers can change system settings. In fact, using USB debugging and specialized software, anyone can optimize their Xiaomi Redmi or Poco. The main thing is to follow the algorithm of actions clearly and understand what parameters you are changing.

Why you need to reduce the resolution on the smartphone

The main reason users take this step is performance in games: When the GPU is forced to process millions of extra pixels, the frame rate drops and the device heats up, and reducing the number of rendering points frees up the system's resources.

The second important aspect is power consumption, because the screen is one of the main energy consumers, and the lower number of active pixels requires less energy for lighting and signal processing, which directly affects battery life, and this is especially true for older models with worn-out batteries.

Decreasing resolution also helps on devices with matrix defects or burnt out areas, and by shifting the pixel density, you can visually hide some hardware flaws or make them less noticeable in everyday use.

⚠️ Attention: Decreasing the resolution below the native matrix value leads to loss of clarity of fonts and images.

Preparing the smartphone for modification of settings

Before you make changes to system files or rendering options, you need to prepare the device. Without proper preparation, access to the necessary functions will be closed. You will need a computer with Windows, macOS or Linux and a good one. USB-cable.

The first step is to activate the developer mode. To do this, go to Settings → About Phone and find the MIUI Version (or OS Version) string. Click on it 7-10 times in a row until you get a message that you have become a developer.

Then you need to allow debugging. Go to Settings → Advanced Settings → Developer. Find the USB Debugging and activate it. When you connect to your computer, you'll see a request for debugging permission on your smartphone screen — be sure to click "Allow."

Using Applications to Change DPI

The easiest way to change display settings without using a computer is with specialized apps from Google Play, which automatically send the right commands to the system, eliminating the need for the user to enter the code manually.

One of the most popular tools is the SecondScreen or Resolution Changer app, and once you install it, you have to give it permission to change your system settings, usually through a feature menu or through a feature menu. ADB-crew on first launch.

• 📱 Download the Resolution Changer app from the official store.
• 🔓 Grant the application rights via adb shell pm grant (instructions are usually in the application description).
• ⚙️ Select a preset (profile) with a lower resolution, for example, 720p instead 1080p.
• ✅ Click "Apply" and check the result on the screen.

The advantage of this method is that it can quickly return to the original settings, and most of these programs retain the original profile, which allows you to return everything as it was (in one click) if the new mode is not convenient for reading text.

Change of permission via computer and ADB

The most reliable and professional method is the use of Android Debug Bridge (ADB) tools, which gives you full control over the device and works even on locked downloaders, since it does not require root rights, but only debugging rights.

First, you need to download Platform Tools from Google's official website and unpack the archive on your computer. Then open the command prompt (CMD) or PowerShell in the tool folder. Make sure the smartphone is connected and the computer "sees" it by entering the command:

adb devices

If a device with a serial number appears on the list, the link is established. To change the pixel density (DPI), which visually changes the scale and resolution of the interface, the wm density command is used. To change the physical resolution of the rendering, the wm size command is used.

Example of commands for setting a resolution of 720x1280:

adb shell wm size 720x1280

Example of commands for changing density (scale):

adb shell wm density 320

⚠️ Warning: wm size changes the physical resolution of rendering. If you specify a value that is not a multiple of native, or too low, the interface may become unreadable.

Set up a graphics accelerator for games

Modern versions of MIUI and HyperOS have a built-in Game Turbo feature that allows you to change the rendering resolution specifically in games, a safer method, since it does not affect the operation of the main system and interface.

Go to the Safety → Game Turbo app. Select the game you want from the list and go to its performance settings. You can find the Graphics Quality slider or the Resolution slider here. Moving the slider to save energy will automatically lower the rendering resolution.

This method is ideal for online shooters and dynamic games, where high FPS is more important than texture detail, and the system will choose the optimal ratio without breaking the layout of the messenger interface or browser.

Comparison of methods of changing the permission

Each of these methods has its advantages and disadvantages, and the choice depends on your goals: whether you want to improve performance across the interface or just in games, and your level of technical training.

Using ADB gives the maximum result, but requires caution. Apps are more convenient for frequent switching. Game Turbo is the best choice for gamers who do not want to risk the stability of the smartphone at the rest of the time.

Return to factory screen settings

If the experiment with resolution has made the interface unreadable, or you just decided to return it as it was, you need to reset the parameters. ADB, It's done by a team:

adb shell wm size reset

adb shell wm density reset

These commands return the physical resolution and pixel density to the manufacturer's set values. If the screen has become black or unreadable so that you can't see what you're doing, try blindly typing a command or plugging an external mouse/keyboard through an OTG.

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The reset commands in ADB reverse previous size and density changes, returning matrix standards.

When using third-party applications, it is usually enough to click the “Reset” or “Default” button in the program interface itself. If the application does not start due to incorrect resolution, try running the smartphone in Safe Mode (holding the off button in the reboot menu), where the third-party software is not activated, and remove the problematic application.

Frequently Asked Questions (FAQ)

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Before the global resolution drops, test the changes for 10-15 minutes, and make sure the keyboard and important interface buttons remain accessible and readable.