Personalizing your smartphone interface is one of the easiest ways to make your device unique and convenient. Owners of Xiaomi, Redmi and Poco devices often wonder how to change the standard system font to make your eyes tired less or just stand out among friends. The regular capabilities of the MIUI shell or the new HyperOS allow you to do this without getting root rights and complex programming.
Unlike many other manufacturers, the Chinese giant has built a font replacement feature deep into the system, making the process accessible even to inexperienced users. ADB-You need to have access to the Internet and a basic understanding of the file system if you decide to use the manual installation method.
However, the standard library may seem scarce and the paid options unnecessarily expensive. Fortunately, there are many ways to download a font from open sources and embed it into the system. In this article, we will take a look at all the current methods, from official topics to manual installation of.ttf files.
Official theme store and built-in features
The safest and easiest way is to use the built-in Themes app, a standard tool that is pre-installed on all of the brand’s modern devices, which allows you not only to change the wallpaper, but also completely transform the typography of the system.
To get started, open the app and go to the Profile tab below, where you need to find the Fonts section, and the system will offer a catalog where you can sort the options by popularity, novelty, or rating, many of which are free, but there are premium sets.
Once you have selected your preferred style, click Download and then Apply. The phone can reboot the interface, which is normal for the system to behave, and this method ensures that there are no compatibility errors, as all files are checked.
- 🎨 Wide selection of design solutions in the official catalog.
- 🛡️ Guaranteeing the security and stability of the system.
- ⚡ Quick installation in one click without rebooting.
It's worth noting that in some regions or on global firmware, catalogs can be limited, and if you don't find the style you want, it doesn't mean you can't install it, but you have to use alternative methods, which we'll talk about later.
⚠️ Warning: When using third-party themes from unofficial sources, always check author rating. Poorly optimized fonts can make text unreadable in the system menus.
Preparation of font files for manual installation
If the standard gallery does not suit you, you will have to download the font yourself from the Internet. The file format should be strictly.ttf (TrueType Font) or.otf. Other formats the system may not recognize without conversion.
You can find quality free fonts on specialized resources such as Google Fonts or DaFont. When downloading, pay attention to the license: almost everyone is suitable for personal use on the phone, but commercial use may require the purchase of rights.
Once downloaded, the file usually lands in the Download or Download folder. Before installing, make sure the file is not packaged in the.zip or.rar archive. If there is an archive, it must be pre-unpacked by any file manager.
It is important to know that some system fonts have a complex structure and contain many characters of different languages. When replacing with a custom file, make sure that it has support for Cyrillic, otherwise you will see squares or question marks instead of Russian letters.
- 📁 Look for files with.ttf extension for maximum compatibility.
- 🌐 Check for Russian layout (Cyrillic) before installation.
- 📉 Avoid fonts that are too bold or decorative for the main text.
💡
For the main interface, it is better to choose sans-serif fonts, since they are easier to read from the smartphone screen in the bright sun.
Installation through the MiuiThemeEditor engineering menu
To install the downloaded file directly, without using the store, we need access to a hidden system application. In modern versions of MIUI 12, 13, 14 and HyperOS, direct installation through the file manager is often blocked, so we use special code.
Open the standard phone and enter the secret code: ##8564##. If the code is entered correctly, a hidden menu called MIUI Theme Editor or Testing Theme will instantly open on the screen. If the code doesn't work, your firmware version may block this input, and then you'll need third-party software.
In the menu that opens, select "Font"; the system will prompt you to select a file from the device's memory; find the previously downloaded.ttf file and confirm the selection; then the phone will prompt you to apply the changes and can reboot the interface.
Codeset: ##8564##
Path to menu: Font -> Select file -> ApplyThis method is considered “clean” because it does not require the installation of unnecessary apps from the Play Market, but it is sensitive to file size: if the font weighs too much or has a non-standard structure, the system can give an application error.
| Method | Difficulty | Risks. | I need a Root. |
|---|---|---|---|
| Tham's shop | Low. | Minimum | No. |
| Secret code. | Medium | Average. | No. |
| Annexes (zFont) | Medium | Average. | No. |
| Root rights | Tall. | Tall. | Yes. |
What if the code doesn't work?
Use of the zFont 3 application
When built-in methods fail, the popular zFont 3 app comes to the rescue, a powerful tool that automatically adapts downloaded fonts to the structure of your MIUI version, and is especially useful for older or newer models where standard paths are changed.
Once you install the application from Google Play, launch it and go to the “Local” tab. Click on the folder icon and select the previously downloaded font file. The application will analyze the file and suggest several installation methods.
Xiaomi phones usually choose the method "MIUI". The application may suggest downloading a special plugin or a theme stub. Follow the instructions on the screen: you will need to apply the proposed theme, and then through the settings select the desired font from the list.
- 📲 Automatic selection of the installation method for your model.
- 🌍 A huge built-in font database from around the world.
- 🔄 Ability to create a backup copy of a standard font.
The main advantage of this is that it has previews, and you can see what the text will look like in the interface before you make changes, and it saves time and eliminates the need for multiple reboots.
⚠️ Note: zFont 3 contains ads. Be careful when you press buttons so that you do not accidentally download advertising software instead of the desired file.
☑️ Pre-installing check
Solving Cyrillic and Display Problems
A common problem with custom fonts is the lack of support for Russian, which is because many beautiful fonts are created by designers from countries where the Latin alphabet is used, and the Cyrillic characters are simply not drawn in them.
If you see "crackers" or empty squares instead of letters after installation, then the file is not suitable. In this case, you need to find a version of the font marked Cyrillic or RU. Sometimes installing the font through the zFont application helps, which may try to "pull" the missing characters from the system, but this does not always work.
There may also be problems with font size, and some decorative options may be too large, causing text in the settings menu to go beyond the screen or overlap with other interface elements.
In such cases, it is better to go back to the standard font, you can do this through Settings → Screen → Font (or through the Themes app). If the interface is so “got” that you can’t get into the menu, try downloading the phone to Safe Mode or using ADB to remove the font file from the system folder.
💡
Always check for Cyrillic in the font preview before downloading it to avoid problems reading the text.
Return to standard font
If you don’t like the new font or cause performance issues, it’s easy to replace it back.The standard Roboto font (or MI Sans in newer versions) always stays in the device’s memory.
Go to the Themes app, go to profile and select Fonts. At the top of the screen, there is often a tab called Installed or Standard. Find Default or Mi Sans there and click Apply.
In some cases, especially after manual installation through root rights or deep modification, the standard file can be overwritten. Then you will need to reset the theme settings to factory values. This is done in the About Phone menu → All options → repeatedly clicking on the kernel version (to log into CIT) or through the Recovery menu, but these are extreme measures.
Remember that frequent font change does not harm the device, but can slightly increase the load on the processor when rendering the interface, which theoretically can reduce autonomy on older models.