Small print on the Xiaomi Redmi 9 screen can be uncomfortable — especially if you’re used to reading books from your phone, messaging or working with documents. Fortunately, MIUI offers several built-in ways to zoom in, and for advanced users, alternative solutions are available. In this article, we will discuss all the current methods of increasing the font, including hidden settings and workarounds for applications that ignore system parameters.
It’s important to understand that resizing text affects not only the user experience, but also the display of the interface. For example, in some applications (such as Instagram or TikTok), too large a font can crop buttons or distort the layout. We tested all of the methods described below on Redmi 9 with the latest versions of MIUI 14 and Android 12 – and we are ready to share the results.
Method 1: Standard font change in MIUI settings
The most obvious and safe method is to use the built-in tools of the system, which is suitable for most users and does not require the installation of additional programs.
- Open the Settings app (the gear icon on the home screen).
- Go to the Screen section.
- Select Text Size and Display (in some versions of MIUI, it may be called Font Size).
- Move the slider Font size to the right to enlarge the text. The available values are from Small to Very Large.
- Click Ready or Apply to save the changes.
This method works for all system applications (Messages, Contacts, Browser) and most third-party programs that support dynamic text scaling to Android standards. However, some games or social networks (for example, VK or Telegram) may ignore these settings - we will talk about this later.
☑️ What to check before changing the font
If after changing the font size, some interface elements look incorrect (for example, buttons move over the edge of the screen), try to return the slider one division back or use the mode for the visually impaired, which will be discussed in the next section.
Method 2: Mode for the visually impaired (enlarged contrast and font)
MIUI includes a special mode for the visually impaired, which not only increases the font, but also improves text contrast, makes buttons larger and makes navigation easier, an option ideal for users with visual problems or those who often use their phone in the bright sun.
You can activate the mode as follows:
- 📱 Open the Settings. → Special facilities.
- 👁️ Choose for the visually impaired (or Vision in English firmware).
- 🔍 Turn on the switch Large text and adjust the slider.
- 🎨 Optional: Activate High Contrast and Large Controls.
| Parameter | The effect | Recommendation |
|---|---|---|
| Large text | Increases font by 20-30% more than a standard slider | Include if standard scale is not sufficient |
| High contrast | Makes the text black on a white background (or vice versa) | Useful in bright lighting |
| Major controls | Increases buttons and icons | Can distort the interface of some applications |
Important: The visually impaired mode may conflict with some MIUI themes (especially dark ones). If the screens start to display incorrectly after activation, try changing the theme to a standard one or turning off high contrast.
Method 3: Change the screen size (Display Size)
If you don't get the font bigger (like icons that are too small), you can zoom in on the whole screen, which will not only increase the text, but also the interface elements, the pictures, and the distance between them. But beware: if you scale too much, some apps may not work properly.
Instructions:
- Go to Settings → Screen → Text size and display.
- Find the screen size (or Display Size).
- Move the slider to the right, and we recommend starting with the Average and checking how the apps are displayed.
- Confirm the changes with the Apply button.
This method is particularly useful for users with thumbs or those who often use a phone with one hand, for example, at scale, the large keyboard becomes wider and the buttons on the menu are further apart, which reduces the risk of accidental pressing.
⚠️ Note: Screen size changes may cause text to be cropped in some games (e.g., in the game). PUBG Mobile or Genshin Impact. If you notice artifacts, return the standard settings.
Method 4: Use MIUI themes with large font
Many users don't know that MIUI allows you to install themes that automatically apply the enlarged font to the entire interface, which is handy if you don't want to manually configure each setting. Here's how it works:
- Open the Themes app (icon with brush).
- In the search bar, enter a request for large font or large font.
- Choose your favorite theme (pay attention to the rating and number of downloads).
- Click Apply and confirm the changes.
Popular topics for increasing the font:
- 🖌️ Big Font MIUI — Increases text by 30% without distortion.
- 👓 Senior Mode – optimized for older users (large icons) + contrast).
- 📖 Reader Theme – imitates an e-book with a large line spacing.
The advantage of this method is that themes are updated frequently and their creators consider compatibility with the latest versions of MIUI. However, some themes may be paid or contain advertising - check reviews before installing.
How to return a standard theme if the new one doesn’t fit?
Method 5: Third-party applications for forced font enlargement
If the built-in methods didn’t work (for example, text on WhatsApp or YouTube is small), you can use third-party utilities, which work on the principle of “forced” zoom, but require additional permissions.
The best apps for Redmi 9:
| Annex | How it works | Wants a Root? |
|---|---|---|
| Big Font | Increases font in all applications, including games | No. |
| Font Size Changer | Allows you to set a custom font size (up to 200%) | Yes (for full functionality) |
| Accessibility Font Size | Uses the API of special features of Android | No. |
Example of Big Font setup:
- Download the app from Google Play.
- Open it and grant permission to Overlay over other applications (in the security settings).
- Choose the desired font size (we recommend starting at 130%).
- Activate the switch Apply to all applications.
⚠️ Note: Forcing font change applications may conflict with banking programs (e.g. SberBank Online or Tinkoff) and check critical services before using them.
💡
If after installing a third-party application, the font has become too large and is not adjustable, restart the phone in Safe Mode (press the power button → Restart in Safe Mode) and delete the program.
More tips for customizing text on Redmi 9
In addition to changing the font size, Redmi 9 can also configure other text display options for maximum comfort:
- 📏 Line spacing: in some applications (e.g, WPS Office or Google Docs can increase the length of the lines, making it easier to read long texts.
- 🎨 Color scheme: dark mode (Settings) → Screen. → Dark subject: eyes fatigue when reading at night.
- 🔍 Lupa MIUI: If you need to temporarily increase the small text (for example, in the PDF), Activate the magnifying glass through Settings → Special facilities → Lupa.
You should also pay attention to the settings of specific applications, for example:
- Chrome: ⋮ → Settings → Size of text.
- Telegram: ☰ → Settings → Type size.
- On Facebook: Display settings are available in the account menu.
💡
The best result is a combination of methods: standard font enlargement in MIUI + zoom in problem applications (for example, in a browser or messengers).
Frequent problems and their solutions
When you change the font size to Redmi 9, users face typical difficulties.
Problem 1: After enlarging the font, some buttons are cropped or disappear.
Solution: Reduce the screen size by one division or enable Landscape Mode Display (if supported by the app).
Problem 2: In games, the text has become too large and goes beyond the screen.
Solution: For most games, the font is adjustable in their own settings. If this option is not available, return the system font to its standard size.
Problem 3: After the MIUI update, the font settings reset.
Solution: This is a known bug in some firmware versions. Go back to the font settings and apply the changes. If the problem recurs, roll back to the previous version. MIUI through settings → The phone. → Updating the system → ⋮ → Selection of a service pack.