How to Increase or Reduce Text Size on Xiaomi Phone: A Complete Guide

Changing the text size on Xiaomi smartphones is one of the most popular settings among users with vision problems or those who want to optimize the display of information on the screen. Unlike devices on pure Android, MIUI firmware offers advanced zoom capabilities, but they are hidden in different sections of the menu. Without knowing the exact ways to access these parameters, you can spend hours searching for the desired option.

In this article, we’ll break down all the ways you can change your font size, from standard settings to hidden features for Redmi models, POCO And Black Shark, and we'll focus on the typical problems of why text gets blurred after zooming in, how to return the original settings, and what to do if zoom is blocked. MIUI 12, 13 and 14 (including global and Chinese versions).

1. Standard method: display settings in MIUI

The most obvious method is to use built-in interface settings, which works on all Xiaomi models, regardless of the firmware version, but has limitations: maximum font size may not be suitable for users with severe visual problems.

To change the size of the text:

1. Open the Settings app (cog icon).
2. Go to the Screen section (or Display in English firmware).
3. Select text size (Text size).
4. Move the slider left (reduce) or right (increase) and the changes apply instantly.

MIUI 14 adds Display size, which changes not only text, but also the size of icons, interface elements, and use it with caution: if you have a value of more than 120%, you may have problems displaying some applications (such as banking or games).

• 🔍 Advantages: Simplicity, instant results, does not require administrator rights.
• ⚠️ Limitations: Maximum font size (150%) may not be sufficient for the visually impaired.
• 📱 Suitable for: All Xiaomi, Redmi models, POCO (including POCO F5, Redmi Note 12).

2. “Small text” regime for visually impaired

If standard magnification isn’t enough, MIUI has a hidden Large Text mode, which isn’t available on all models, but works on most Android 10 and newer devices.

You can activate it like this:

1. Open the Settings. → Special Opportunities (Accessibility).
2. Choose a Vision (Vision)
3. Find the option Large text and turn it on.
4. Some firmware will need to confirm the action through Special Opportunity Permits.

This mode increases the font to 200% of the standard, but has side effects:

⚠️ Note: Large text may not display menus in games (e.g. Genshin Impact or Genshin Impact) correctly. PUBG Mobile, as well as the interface of some banking applications. Before activating, check compatibility with critical programs for you.

3. Change font size via ADB (for power users)

If the built-in settings don't work, you can manually set any font size through the Android Debug Bridge (ADB), a method that requires connecting the phone to a computer and basic command line knowledge.

Step-by-step:

Enable debugging over USB in the developer settings

Install ADB drivers on PC

Connect the phone to your computer and confirm access

Download the platform ADB from the official Google website-->

adb shell settings put system font_scale 1.3

Where 1.3 is the zoom factor (1.0 = standard size, 1.5 = 150%, etc.) After you run the command, restart the device.

⚠️ Attention: Inept use ADB If the font becomes unreadable after the change, return the standard value with the command adb shell settings put system. font_scale 1.0 and reboot the phone.

This method is suitable for:

• 🛠️ Devices with custom firmware (for example, LineageOS on Xiaomi Mi) A3).
• 🔓 Models where the manufacturer has blocked the font change (e.g. some versions of Redmi for China).
• 🎯 Size adjustments in 0.1 increments (e.g. 1.25 instead of standard 1.2 or 1.3).

💡

Before using ADB, back up your settings in Settings → System → Backup. This will help you quickly recover from errors.

4. Third-party applications for fine-tuning the font

If the built-in MIUI is not good, you can use third-party utilities, which offer advanced features: changing the style of the font, color scheme and even animation text.

Top.-3 tested applications:

1. iFont – allows you to install custom fonts (requires root or permission through ADB). Supports Xiaomi on Android 9-13.
2. Big Font, which specializes in magnifying the font to 300% without losing clarity, runs on the Redmi Note 10/11 without root.
3. Text Size Changer is a simple tool with a preview of changes. Compatible with POCO X3/X4.

How to install custom font through iFont:

1. Download the app from Google Play or the official website.
2. Choose your favorite font from the library (e.g. Roboto Condensed for space saving).
3. Click Install and confirm via the Settings menu → Screen → Font.

Warning: Some banking applications (such as SberBank Online or Tinkoff) may block work on devices with modified system fonts. Check critical programs before installing.

5 Problems after changing the text size and their solution

Enlarging the font often leads to unexpected bugs, and here are the most common problems and ways to fix them:

If the phone is slowing down after the changes, try:

• 🔄 Reboot the device (hold power) + Volume up 10 seconds).
• 🧹 Clear the system cache in Settings → Memory. → Cleanup.
• 📱 Reset the screen settings to standard (in Settings) → System system → Resetting settings → Resetting screen settings).

💡

If navigation gestures stop working after changing the font (for example, swipe up to return to the home screen), return the scale to the standard value. 80% of the time this solves the problem.

6. Features for specific Xiaomi models

Some Xiaomi devices have unique font settings. Consider the most popular models:

Redmi Note 12 Pro+:

• Supports dynamic scaling – the font automatically adjusts to the lighting (setting in the Screen → Adaptive brightness → Additional).
• Has a hidden option Contrast text for better readability in the sun (included through Special Opportunities → Contrast Colors).

POCO F5:

• There is no big text mode in global firmware – use ADB or third-party applications.
• When you increase the font by more than 140%, the unlock animation disappears.

Xiaomi 13 Ultra:

• Supports smooth scaling of the font in 0.05 increments (instead of the standard 0.1).
• It has a separate text size setting for Always on Screen (AOD).

Black Shark 5/5 Pro:

• The change in the font does not affect the Shark Space game mode - the text size is fixed there.
• To change the font in games requires a root or modified firmware.

7. How to return the standard text size

If after experiments with the font interface became uncomfortable, you can return the original settings in several ways:

Method 1: Through the settings menu

1. Go to Settings → Screen → Text Size.
2. Move the slider to 100% (or Standard) mark.
3. If the option is not available, check if the Large text mode is enabled in special features.

Method 2: Resetting screen settings

1. Open Settings → System → Resetting settings.
2. Select Reset Screen Settings (not to be confused with a full reset!).
3. Confirm the action. All display parameters (font, scale, colors) will return to factory.

Method 3: Through ADB (if the menu does not open)

adb shell settings put system font_scale 1.0

After completing the command, restart the phone.

⚠️ Note: If you used third-party fonts through iFont, a standard reset may not return the original font, in which case you will have to manually remove the installed font packages through Settings. → Annexes.

FAQ: Frequent questions about text size on Xiaomi