How to change the font on Xiaomi Redmi 9: from standard themes to manual patching of the system

Xiaomi Redmi 9 is one of the most popular budget smartphones with a shell MIUI, which offers extensive customization options, including changing fonts. However, not all users know that in addition to standard themes in MIUI Themes, there are other ways to change the system font – from simple to demanding technical skills.

In this article, we will discuss 5 working methods for changing the font to Redmi 9 (including Redmi 9A/9C/9T models), their pros and cons, and also warn against typical errors. We will focus on the hidden limitations of MIUI 12/13/14, which block the installation of custom fonts without additional manipulation. If you want to go beyond the standard Roboto or MiSans, read on.

1. Standard method: change font through MIUI Themes

The safest and most official method is to use the built-in MIUI Themes store, which does not require super-user rights and is suitable even for beginners, but the choice of fonts is limited here - most themes only change icons and wallpaper, and the font remains system.

To find font themes:

• 📱 Open the Themes app (icon with brush).
• 🔍 In the search bar enter the font (in English - font).
• 🎨 Scroll through the results and select a topic marked “Includes font” (e.g., “Minimal Font” or “Handwriting Style").
• 📥 Click Apply - the font will change automatically.

⚠️ Attention: After update MIUI before version 13+ Many font themes have disappeared from the official store. If the search doesn't work, try it:

• 🌐 Change the region in your phone settings to India or Indonesia (there are more of them).
• 🔄 Reboot your phone after applying the theme – sometimes the font is only used after the reboot.

2. Installation of fonts through APK-files without root)

If MIUI Themes doesn’t have the right options, you can manually install the font through third-party APKs. This method works on Redmi 9 with MIUI 12-14, but requires the option “Install from unknown sources” to be enabled.

Popular applications for changing fonts:

• 📌 iFont supports more than 1000 fonts, there is a Russian-language interface.
• 📌 FontFix – specializes in fonts for MIUI, requires ADB full integration.
• 📌 ZFont 3 is a simple interface, but limited choice for new versions MIUI.

Instructions for iFont:

1. Download and install iFont from Google Play.
2. In the app, select the Online → section to find your favorite font (for example, “Google Sans” or “Product Sans”).
3. Press Download, then Set.
4. Confirm installation via MIUI Themes (the app will prompt you to create a temporary theme).

⚠️ Note: Some fonts from iFont may not support Cyrillic or display characters instead of Russian letters!

Download APK only from verified sources (APKMirror, Google Play)|Enable installation from unknown sources in Settings → Applications → Special Access |Return current font (via MIUI Themes → My themes)|Check font compatibility with MIUI 13/14

-->

3. Manual font change via ADB (for experienced)

If you need to install custom font (like SF Pro with iPhone or Inter) but no root rights, you can use ADB (Android Debug Bridge), which requires a computer and minimal command line knowledge.

Advantages of the method:

• ✅ It works on Redmi 9 with any version. MIUI (including 14).
• ✅ Supports any typeface in.ttf format.
• ✅ Does not require unlocking the loader.

Step-by-step:

1. Download and install ADB Tools on PC.
2. Enable USB debugging on your phone: Settings → About Phone → MIUI version (click 7 times to activate Developer Mode), then Settings → Additional → Developers → Debugging over USB.
3. Connect Redmi 9 to your PC and confirm your trust in the device.
4. Download the font archive (like Google Fonts) and unpack it into the ADB folder.
5. Open the command line in the folder with ADB and execute the commands: adb push your font.ttf /sdcard/ adb shell su mount -o rw,remount /system cp /sdcard/your font.ttf /system/fonts/ chmod 644 /system/fonts/your font.tf reboot.

⚠️ Attention: Misuse of the right ADB If the phone doesn't turn on after rebooting, try resetting via Fastboot (fastboot erase userdata).

4. Change font using Magisk (root required)

If your Redmi 9 is unlocked and Magisk installed, you can use the modules to deep customize the fonts, which gives you maximum freedom, but requires:

• 🔓 Unlocked bootloader (fastboot oem unlock).
• 📦 Installed by Magisk (instructions here).
• 🛠️ Backup of the system (in case of failures).

Best font modules:

How to install the module:

1. Download a module file (e.g. FontManager.zip) from XDA Developers.
2. Open Magisk Manager → Modules → Install from storage.
3. Choose the downloaded one. ZIP-File and wait for installation to be completed.
4. Reboot the phone.
5. After the reboot, open the module app (like FontManager) and select the font.

💡

If the font is "square" after the module is installed, then the font chosen does not support Cyrillic. Try Noto Sans or Open Sans, they are universal.

5. Alternative methods: TWRP and custom firmware

For the most advanced users willing to sacrifice stability for a unique design, there are radical ways to:

• 🔧 Install custom firmware (such as LineageOS or Pixel Experience), where fonts are changed through Android settings.
• 🔄 Use of the TWRP for manual replacement of font files in /system/fonts/.

Warnings:

• ❌ Castom firmware can break the job MIUI-Feature (e.g. Game Turbo or Second Space).
• ❌ Wrong firmware through TWRP leads to a "brick" (inoperability) of the device.
• ❌ Xiaomi warranty is canceled after unlocking the bootloader.

If you do decide to do this, follow the instructions from XDA Developers for a specific Redmi 9 model (codename: lancelot), such as the Pixel Experience:

1. Unlock the bootloader through the Mi Unlock Tool.
2. Install TWRP for lancelot.
3. Download the Pixel Experience firmware from the official website.
4. You can use TWRP (Wipe → Install → Reboot).

💡

Castom firmware is an extreme method. On Redmi 9, it often leads to problems with the camera, the fingerprint sensor and the camera. MIUI-Before installation, check reviews about a particular build!

Frequent problems and their solutions

When you change your font to Redmi 9, you'll see some common mistakes. Here's how to fix them:

If none of the methods worked, check:

• 📵 Version MIUI — on certain firmware (for example, MIUI 14 Global) blocked font changes without root.
• 🔒 Access rights – if you use them ADB, Make sure that the font files have 644 rights.
• 🔄 Cache system - after changing the font, clear the cache in Settings → Memory. → Clear the cache.

FAQ: Answers to popular questions