How to change the font in messages on Xiaomi: the full guide

Personalizing your smartphone interface is one of the most popular ways to make your device your own. Owners of Xiaomi and Redmi devices often wonder how to change the font in messages to stand out or just improve the readability of text. Standard system font can seem boring, too small or simply not fit the aesthetic preferences of the user. Fortunately, the MIUI shell and its current version of HyperOS provide quite flexible tools for managing typography.

However, the process of changing the font is not always obvious, as settings can be scattered across different menus depending on the version of Android and the firmware region. Changing the system font will automatically affect most applications, including the standard Messages app, WhatsApp, Telegram and other messengers. This is because applications inherit the display settings of text from the operating system, if they do not have their own rigid restrictions.

In this article, we will discuss in detail all the available methods of font replacement: from the regular system tools to install third-party themes. You will learn where to look for hidden settings, how to correctly apply fonts without superuser rights and what to do if after updating the text in SMS turned into “krakozyabra”. Importantly, the use of some third-party fonts can lead to incorrect display of Cyrillic in a standard SMS application, so always check readability before final approval of changes.

Staffing capabilities of the MIUI and HyperOS shell

Starting with the most reliable and secure method, using built-in functionality. In Xiaomi smartphones, the Themes system application is responsible for font management. This is where the official font catalogue is stored, which is guaranteed to be displayed correctly on your device screen. To access the settings, you need to open the Themes app and go to the user profile, which is usually indicated by the icon of the man in the lower right corner.

You're interested in the Fonts section of your profile, and there's a huge selection of free and paid options, and you can preview what the text you're going to see in the font will look like, like "The quick brown fox." Once you've selected the appropriate option, just click Apply and the system will reboot the graphical interface, and all text, including incoming and outgoing SMS, will change instantly.

It is worth noting that in some regions (for example, in Russian firmware), the font directory may be limited or completely absent due to licensing restrictions, in which case the application may offer to download fonts from the Internet or switch the region in the settings of the Mi Account. Changing the region to India or Singapore often opens up access to the full directory without losing the functionality of the phone.

💡

If the standard directory is empty, try clicking on the search and entering the “Free fonts” query in the Themes app – this often displays hidden free collections.

The advantage of the standard method is stability: system fonts are optimized to work with different screen resolutions and do not cause any problems in the interface, but the choice may seem limited for sophisticated users who want maximum uniqueness.

Using third-party themes to change typography

If the built-in directory doesn't meet your needs, third-party themes come to the rescue. Many developers create entire visual packages that completely change the appearance of the system, including icons, wallpaper and, of course, fonts. Installing such a theme is a comprehensive solution that will change the font in messages globally.

When searching for a topic, look for screenshots in the description. Often authors indicate which font is used in the package. After downloading the topic in the Topic app, go to Profile → Topics, select the downloaded file and click Apply. Importantly, some themes can only change part of the interface elements, so the text in SMS can remain standard if the author of the topic did not include it in the modification package.

⚠️ Note: When installing themes from unverified sources (.mtz files), there is a risk of malware or system stability disruption.Always check author ratings and reviews before installing them.

For advanced users, you can edit already installed themes. With the MTZ Editor app, you can open a theme file, replace the font file inside the archive with your own, and reassemble the theme. This requires file system permissions, but gives you full control over the look and feel.

Instructions for installing fonts from.mtz files

The most flexible way is to manually install fonts. font files for Xiaomi have the extension.mtz. They can be found on specialized forums (for example, 4PDA or XDA Developers) or in Telegram channels dedicated to modification of MIUI. This method allows you to install a font that is not in the official store, for example, popular Google Sans, Rubik or handwritten versions.

The installation process requires a clear sequence of actions. First, download the font file to the device. Then open the Topic app, go to the Profile section and select Download (or click on the folder/plus icon, depending on the version of MIUI). The system will prompt you to select the.mtz file from the phone's memory. Once selected, the font will appear in the list of My Pages or Downloads, from where it can be used.

If text in messages becomes unreadable or disappears after applying the font, don't panic. Just go to the font settings and select the standard Classic or Default option to return everything as it was. Sometimes it takes a full smartphone reboot to get the cached interface elements updated with the correction.

Compatibility is a big concern. Fonts made for older versions of MIUI 11 or 12 may not work properly on MIUI 14 and HyperOS. This is due to changes in the font rendering engine. Always look for versions marked "For MIUI 14+" or "Global."

Configure the display of text in specific applications

Sometimes users don't have to change the font on the whole system, but only on a specific message application, like standard Google Messages or MIUI Messaging. Unfortunately, the apps themselves rarely have built-in font settings, relying on system settings. However, in some cases, you can use special features.

In your phone settings, go to Settings → Settings → Special Features → Visual (the path may differ). Here you can find text size settings, but not the font itself. For deeper customization inside the Google Messages app, you can try to turn on a dark theme or change the background of the dialogue, which will visually change the perception of the text, even if the font remains system.

There is also a method of using launcher or overlay applications that can replace fonts in individual windows, but this requires complex settings and often consumes additional battery power. The most effective is the global change of the system font, which is guaranteed to affect both the SMS input window and the dialog list.

If you use third-party SMS clients like Textra or Chomp SMS, check their internal settings. These apps often have their own display engine and let you choose the font regardless of the system. In Textra, this is done through Settings → Design → Font.

Solving problems with encoding and display

A common problem with custom font installation is that you have "squares" instead of letters or text disappearing completely in messages, which means that the chosen font does not support the Cyrillic range of characters or the encoding table is damaged. Standard fonts contain thousands of glyphs for different languages, while decorative fonts are often limited to Latin only.

If you are faced with this situation, the first thing you need to do is return the standard font. If the interface has become completely unreadable, try going to Safe Mode (usually by pressing the off button on the lock screen) and removing the problematic topic. Also helps to clean the cache of the application Topics and System UI Recovery menu.

Another common mistake is to install fonts designed for high-resolution screens on low-pixel-density budget models, resulting in thin letter lines that can float or disappear. Always choose fonts labeled Universal or suitable for your screen resolution.

Additional Message Readability Settings

Changing the font isn’t the only way to improve the experience. Xiaomi smartphones have many hidden settings that affect text perception, such as turning on Read mode reduces eye strain by changing the color temperature of the screen, making reading long conversations more comfortable.

You can also look at contrast. In Settings → Screen → Colors and saturation, you can choose either Saturated Colors or Standard. For text messages, the standard mode is better, as it provides the most accurate color reproduction of black text on a white background, reducing eye fatigue.

💡

The optimal font size for comfortable reading SMS on Xiaomi smartphones is 18-20 sp (scale-independent pixels), which usually corresponds to 2-3 division of the slider in the settings.

Don't forget the dark theme. MIUI and HyperOS have an adaptive dark theme that inverts not only the background colors, but also some text elements, making it much more enjoyable to communicate at night, and you can activate it through the notification curtain or in the screen settings.

Frequently Asked Questions (FAQ)