Xiaomi Redmi 9 smartphone owners often face the need to adapt the interface to their visual preferences. Standard font settings can seem too small for people with poor eyesight or simply uncomfortable in bright sunlight. Fortunately, the MIUI shell on which the device is based provides ample opportunities for customizing the display of text information without the need for superuser rights.
The process of resizing letters does not require deep technical knowledge and takes only a few minutes. In this article, we will discuss in detail not only standard methods of enlarging the font, but also hidden functions, such as changing the thickness of characters and global scaling of interface elements, which will make using your smartphone as comfortable as possible.
It's worth noting that over-magnification can cause some controls to go off the screen or text to crop in apps, so it's important to find a balance between readability and functionality. Next, we'll look at all the customization tools available, Step-by-step.
Standard text size setting in MIUI
The most obvious and safe way to change the display of letters is to use the built-in system tools. First, you need to get to the main settings menu of your Redmi 9. This can be done by clicking on the gear icon on your desktop or in the notification curtain. Find the section that is usually denoted as the Screen or Display, although it can be called differently in different versions of the firmware.
Within this menu, look for text size, and if you click on it, you'll see a slider that moves left or right, and it will instantly change the size of the font throughout the system. Notice that it's the font size that's regulated, not the scale of all interface elements. This is an important nuance, because the interface can stay the same, only the letters will change.
- 📱 Go to your device settings.
- 👁️ Select the Screen (or Display) section).
- 🔤 Click on the text size item.
- ↔️ Move the slider to select a comfortable value.
Once you have the optimal value, just go back to your desktop. Changes are automatic and don't require you to restart your device. If you don't like the result, you can always go back and adjust your settings. This is the baseline that is available to every Xiaomi user.
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If a standard slider doesn't work, try changing the theme too, and some themes have their own, larger fonts that override system settings.
Adjustment of boldness and font style
Often the problem is not so much the size as the fineness of the letter lines, which makes the text seem pale and hard to read. Xiaomi Redmi 9 has a separate setting for boldness, and you can find it in the same menu where you changed the size, or search the settings by typing in the "fat" query.
Activating this feature makes the characters denser and more contrasting, which is especially useful when using a dark theme, where thin white letters on a black background can float before your eyes, but it is worth remembering that increasing the fat content can cause letters in long words to merge with each other.
⚠️ Note: At maximum font boldness in some third-party applications, text can overlap or go beyond text fields. Check the display in commonly used programs after turning on this option.
For those who lack standard options, there is a MIUI Themes store, where you can download special fonts that are larger and bolder by default, and installing this typeface is an effective way to globally change the visual style of a device to make it more readable.
Global scaling of interface elements
If you don't want to resize your font and you want to zoom in on the icons, buttons and indentations, you should use zoom, which is especially relevant for people with severe visual impairments, and unlike just zooming in, it zooms in on the whole picture.
To access these settings, you may need to activate the developer menu if it is hidden in your version of MIUI. However, most often, just go to Advanced Settings -> Special. -> Visual. There you will find a slider that is responsible for the size of the interface elements.
As you zoom in, the elements get much larger, which can reduce the amount of information that's displayed on the screen at the same time. The desktop can become less informative because the icons take up more space. It's a trade-off between ease of reading and density of data.
Use of the regime for the visually impaired
The Xiaomi Redmi 9 has a special mode for people with visual disabilities, which radically changes the logic of the device, making all the elements as large and clear as possible, and you can activate it through the Special Opportunities menu.
When you turn on this mode, the interface is simplified to the limit, and big icons, loud beeps, and simplified navigation are the hallmarks of this feature. It's not just a font augmentation, it's a complete redesign of the navigation to the user's needs.
- 🔍 Open Settings and find Special Opportunities.
- 👴 Select Mode for the Visually Impaired (or Simplified Mode).
- ✅ Confirm the activation of the mode.
- 🔄 Evaluate changes in the interface.
It can be inconvenient for the average user to use this mode constantly because of the loss of many features and widgets, but as a temporary solution, or for older people who only need a smartphone for calls and simple tasks, this is ideal.
Table of comparison of methods of increasing the text
To make it easier for you to navigate the way you set up, we have prepared a summary table that will help you quickly determine which method is best for your particular situation and device model.
| Method | Impact on the system | Difficulty | Recommendation |
|---|---|---|---|
| Text-size slider | It only changes letters. | Low. | For easy correction |
| Fat type | Increases contrast | Low. | For poor vision. |
| Scaling | Increases all the elements | Medium | For full adaptation |
| Third-party topics | Changes style entirely | Medium | For aesthetics and reading |
As you can see from the table, standard tools cover most needs, third-party themes take longer to find and install, but they yield unique results, and the choice of method depends on your personal preferences and visual acuity.
Hidden settings and engineering menu
For advanced users who aren't afraid to experiment, there are deeper settings: They allow you to change the DPI (dots per inch) of the screen, which actually changes the pixel density, and it affects how much content is placed on the screen and how large it is.
Changing DPI is a powerful tool, but it requires caution: too high can make the interface unreadable, and too low can cause some applications to stop running or display incorrectly, and access to these settings is often hidden in the developer menu.
How to enter the developer menu?
In the developer menu, find Minimum Width (or Smallest Width). The default value for Redmi 9 is usually around 360-400 dp. Reducing that number will increase the size of all elements, zooming in will decrease. Be careful when entering values.
⚠️ Note: Do not set extremely low values DPI (This can cause you to not be able to return to normal settings, as the control buttons become too large or, conversely, disappear from the screen.
Frequent problems and their solution
Sometimes, after updating firmware or installing applications, the font settings may become unreadable, "squares" instead of letters appear, or lines cropped, in which case the first thing to do is check if an application that conflicts with system fonts is installed.
If the problem occurs after the MIUI update, try resetting fonts to factory fonts. This often helps to get things back in place. It is also worth checking for updates to the system, as new patches often fix text rendering errors.
☑️ Diagnostics of font problems
In rare cases, the problem may be that system files are damaged. If nothing helps, you may need to completely reset your device to factory settings. But before that, make sure to back up all the important data so you don't lose contacts and photos.
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The most common cause of text display problems is third-party themes or launchers conflict. Try to return a standard theme to rule this out.