How to change the font on Xiaomi Redmi 9 NFC: from standard settings to ADB-team

Xiaomi Redmi 9 NFC with its proprietary shell MIUI offers users a wide range of customization options, including changing the system font. However, not everyone knows that in addition to the standard themes from the Mi Theme Store, there are other ways - from hidden settings to manually embed fonts through ADB. In this article, we will analyze all current methods taking into account the features of the Redmi 9 NFC (model M2004J19C), where due to the limitations of MIUI 12/13, some familiar solutions may not work.

It is important to understand that changing system fonts is an interference with the Android interface, which can affect the stability of the device. For example, an improperly installed font can cause an application crash or even a bootloop ( loop reboot). So before experimenting, it is worthwhile to familiarize yourself with the nuances of each method and make a backup of the data, especially for owners of Redmi 9 NFC on MIUI Global, where the functionality of the themes is often cut down compared to the Chinese version of the firmware.

1. Standard method: changing the font through MIUI themes

The safest and most recommended method for Xiaomi is to use the built-in Mi Theme Store, which does not require root rights or technical skills, but has a limitation: only fonts certified for your version of MIUI are available.

To change the font through the themes:

• 📱 Open the Themes app (icon with brush on desktop).
• 🔍 Go to the Fonts section (tab in the bottom menu).
• 🎨 Choose your favorite font from the collection (e.g. MiSans, SF Pro or Roboto).
• 💾 Click Apply and confirm the change.

On Redmi 9 NFC with MIUI 12.5+, some fonts may not display correctly in third-party applications (e.g. Telegram or WhatsApp), due to the limitations of the shell, which forcibly replaces fonts in individual programs, either resetting themes to standard ones or switching to the ADB method (described below).

⚠️ Attention: After update MIUI through OTA The selected font may be reset to standard. To avoid this, save the name of the current theme in Settings before updating. → The phone. → Version. MIUI.

2. Manual font addition via file manager (without root)

If the Mi Theme Store doesn't have a suitable font, you can try installing it manually, which works on Redmi 9 NFC thanks to the features of the MIUI file system, where the fonts are stored in an accessible folder for writing.

You'll need:

• 📁 A font file in.ttf or.otf format (e.g. Montserrat or Open Sans).
• 📂 File Manager with access to system folders (e.g. MiXplorer or Solid Explorer).
• 🔧 Developer mode enabled (activated by 7-fold pressing on the Version) MIUI phone-setting).

Instructions:

1. Download the archive with the font and unpack it on your phone (for example, in the Download folder).
2. Open the file manager and follow the path: /system/fonts/ (If the folder is not available, use root access or ADB).
3. Copy your font (e.g. Montserrat-Regular.ttf) into this folder.
4. Reboot the phone.
5. Then in Settings → Additional → Font, select a new font from the list.

⚠️ Attention: On Redmi 9 NFC s MIUI 13 folder /system/fonts/ It can be protected from recording. In this case, the method will not work, it will be necessary. ADB magisk.

Download the font in.ttf| Check the version of MIUI (12.5+)| Install the file manager with root access | Backup current fonts | Activate the developer mode-->

3. Using ADB to change system font (advanced method)

If the previous methods do not work, you can apply the font through Android Debug Bridge (ADB). This method requires connecting the phone to a PC, but does not need root rights.Suitable for Redmi 9 NFC any version MIUI, global.

Step-by-step:

1. Install ADB Tools on your computer (you can download from Google).
2. Turn on the phone debugging over USB in Settings → For developers.
3. Connect Redmi 9 NFC to your PC and confirm debugging permission.
4. Open the command prompt (or Terminal on Mac/Linux) and execute: Adb devices Make sure the device is defined.
5. Download the font archive (like Google Sans) and unpack it into the ADB folder.
6. Follow the commands (replace font.ttf in your file name): adb push font.ttf /sdcard/ adb shell su mount -o rw,remount /system cp /sdcard/font.ttf /system/fonts/ chmod 644 /system/fonts/font.ttf reboot

After the reboot, the new font will appear in Settings → Screen → Font. If the font does not appear, check the file rights (644) and the path to /system/fonts/.

💡

Before using ADB, check if your Redmi 9 NFC has blocked the mount command via MIUI security policies. If an error occurs after mount -o rw,remount /system is entered, try an alternative method with adb pull and adb push for individual files.

4. Installation of custom launcher with its own fonts

If you don't want to mess with system files, you can get around the limitations of MIUI with a third-party launcher, popular options are Nova Launcher, Lawnchair or Hyperion Launcher, which allow you to use your own fonts for icons, folders and text on your desktop without affecting your system settings.

How to set up:

• 📲 Install a launcher from Google Play (for example, Nova Launcher Prime).
• 🎨 In the launcher settings, find the Appearance section → font.
• 📁 Download the font in.ttf format and indicate the path to it in the settings.
• 🔄 Apply changes and restart the launcher.

The downside of this method is that the font will only change in the launcher interface, and will remain standard in system menus and applications, but this method is completely secure and does not require superuser rights.

5.Use of Magisk and modules for full customization

For advanced users who are ready to get root access, there is a radical way to install the FontManager module or iFont via Magisk, which will allow you to change the fonts at the kernel level, including system applications.

Algorithm of action:

1. Unlock the Redmi 9 NFC bootloader via the Mi Unlock Tool (Xiaomi account binding is mandatory!).
2. Install a custom recap (TWRP) and swipe Magisk.
3. Download the iFont module from the Magisk repository.
4. Restart your phone and select the font in the iFont app.

On the Redmi 9 NFC with the MediaTek Helio G80 processor, unlocking the bootloader could result in loss of NFC and Widevine L1 features (no HD on Netflix).

⚠️ Note: Magisk on Redmi 9 NFC s MIUI 13 could cause SafetyNet issues, causing Google Pay to stop working, Pokémon GO Use MagiskHide Props Config to mask root.

6. Restore standard font after failures

If you've been experimenting with fonts and your phone starts to glittle (artifacts, app crashes, or bootloop), return the standard settings. Recovery methods depend on the method you used:

• 🔄 For fonts from Mi Theme Store: Go to Themes → Mine. → Reset to standard.
• 📁 For manual file replacement: remove the added font from /system/fonts/ through ADB: adb shell su mount -o rw,remount /system rm /system/fonts/yourfont.ttf reboot
• 🛠️ For Magisk: Disable the font module in the module manager and reboot.
• 🚨 When bootloop: Go to Fastboot (Power button) + Vol Down) and reset via Mi Flash Tool (data loss!).

If the phone does not load even in Fastboot, you will need firmware through EDL-Mode (requires an authorized Xiaomi account and a Deep Flash cable). on Redmi 9 NFC This process is complicated due to the protection of Anti-Rollback, so it is better to contact the service center.

💡

Before any manipulation of fonts, create a backup folder /system/fonts/ through ADB: adb pull /system/fonts/ fonts_backup. This will allow you to quickly restore the system in case of an error.

FAQ: Frequent questions about changing font to Redmi 9 NFC