How to remove the installed theme on Xiaomi Redmi 9

Changing the visual design of a smartphone is a great way to personalize a device to your liking. However, it often happens that the downloaded theme does not live up to expectations: fonts become unreadable and icons lose contrast. Owners of Xiaomi Redmi 9 may face a situation where the standard removal through the application menu does not work or returns the system to its original state only partially.

MIUI has a deep integration that sometimes leads to artifacts even after trying to return to the standard look. Users notice that some menus remain old colors and lock screens do not change. Understanding the mechanism of the Theme Store will help to avoid confusion and properly clean the system of excess debris.

In this guide, we will not only discuss basic reset methods, but also deep settings that allow you to completely get rid of traces of third-party design. You will learn how to correctly remove fonts and wallpaper that often stick to the system. A competent approach to cleaning themes will ensure stable operation of the interface and return the usual response speed.

Before taking any drastic measures, it is worth trying the standard operating system tools. In most cases, the standard functionality of Redmi 9 allows you to solve the problem without losing data. However, if the system is stuck on a certain design element, you will need more deep manipulation of the file system or account.

Staff removal through the Topics app

The main design management tool in the MIUI shell is the System Application Themes, which stores all uploaded profiles, fonts and wallpaper. To remove unwanted theme, you need to run this application and go to the user profile section, usually marked by a person icon or an avatar in the lower right or upper corner of the screen.

Inside the profile section, find the Topic tab, which will show you a list of all the designs ever downloaded, select the one you want to remove, and click on the Remove or Reset button. It's important to understand that simply deleting the theme file may not return all icons to their places if they've been changed globally.

⚠️ Note: If the application icons remain changed or disappear after deleting the theme, don’t panic.This means that the activated theme has applied its icon pack over the system one.

After the removal procedure, the system may require a reboot. Don't ignore this request, as the GUI cache needs to be updated. In some cases, the Xiaomi Redmi 9 may temporarily hang on the first time it is turned on after changing the theme - this is a normal process of rebuilding memory buffers.

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Deleting the theme through the user profile does not remove automatically applied fonts and lock screen wallpaper, they must be changed separately.

Resetting theme to factory settings

If manual removal didn’t work or you’re confused by a lot of profiles you’ve installed, the most effective solution is to completely reset the theme to factory settings.This feature returns the default set by the manufacturer at the factory. To do this, open the Topics app and go to Profile.

Find a button called "Themes" at the top of the download list screen, and you'll see the current active theme and the "Reset" button, or an icon with an arrow returning to the Classic or Default standard, and pressing this button forcibly replaces all the design elements with the original ones.

• 🎨 Open the Topics app and go to your profile.
• 🔄 Click on the Topics section and select a standard theme (usually first on the list or marked as “Default»).
• ✅ Confirm the application and wait for the file replacement process to be completed.
• 📱 Restart the device to fix the changes.

Sometimes users find that the theme (Penta) or other popular modifications do not want to disappear completely, in which case it helps to clean the data of the application itself. Go to Settings → Apps → All Apps → Topics → Memory and click Clear. This will delete the list of downloaded themes, but will not affect personal files.

Removal of fonts and wallpaper of the lock screen

A common problem for Xiaomi Redmi 9 owners is when the theme is removed and the font remains changed, because the fonts in MIUI are a separate component of the system. To return the standard font, you need to go back to the Themes app, go to the profile and select the Fonts tab.

In the font list, find a standard system font (often called Roboto or simply "Default") and apply it. After that, you can remove the old font through the font management menu by clicking on the basket icon or three dots next to the name.

To clear Wallpaper Carousel wallpaper, you should go to Settings → Wallpaper → Wallpaper Carousel. You need to turn off the automatic change function and remove downloaded image packets. If you just change the theme, Carousel can continue to work in the background, consuming traffic.

⚠️ Note: When removing third-party fonts, make sure you don’t manually delete system files through the file manager.This can cause the text in the menu to become unreadable (“crackers”), and this can only be corrected by a complete phone reset.

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If the Russian language is missing from the menu after changing the font, immediately apply the standard font Mi Sans or Roboto through the themes menu without restarting the phone.

Work with superuser rights and system files

For advanced users who have set up Root rights on their Redmi 9, a deeper level of theme management is available. Theme files are stored in the system directory, and manual removal of them guarantees complete disappearance of the design. However, this method requires caution and the presence of a file manager with permissions to access the system partition, such as Root Explorer or MT Manager.

The path to theme files is usually: /data/data/com.android.thememanager/files or /miui/theme. Inside these folders, you store archives with the.mtz extension. By manually deleting them, you free up space in memory and guarantee that the theme is removed from the list of available ones.

Use of the ADB-Android Debug Bridge allows you to delete themes without Root permission, but requires you to connect to a computer. -k --user 0 com.android.thememanager will remove the application itself by automatically resetting all settings to factory ones, since the component responsible for design will be absent.

Cleaning the cache and solving problems with application

There are times when the theme seems to be deleted, but the phone still looks strange visually, which indicates that there are graphic elements in the cache of the system. To solve this problem, the Xiaomi Redmi 9 needs to clean the cache of the system interface.

Go to Settings → Apps → All apps. Find System UI (or System UI) and Wallpaper on the list. For each of these applications, click Memory and select Clear Cache. Don't confuse it with Clear Everything, as this can reset the widget settings on the desktop.

• 🧹 Go to the memory settings of the applications “Themes”, “Wallpaper” and “System interface».
• 🗑️ Click the “Clear Cache” button for each of them.
• 🔄 Perform a full reboot of the device by pressing the power button.
• 👀 Check if the artifacts of the old theme are missing.

If the problem persists, the MIUI configuration file may be damaged. In this case, resetting all settings to factory settings can help, but this is an extreme measure that requires prior data backup. Often, simple waiting helps: the system can independently reassemble the icon cache within 10-15 minutes after rebooting.

Frequent errors and their elimination

When working with themes, users often make typical mistakes that lead to unstable work of Redmi 9. One of the most common is the installation of themes designed for other versions of Android or MIUI shells (for example, the theme for MIUI 11 on MIUI 14).

Another mistake is ignoring the compatibility of screen resolutions. Xiaomi Redmi 9 has a specific display resolution, and themes optimized for narrow flagship screens can be displayed incorrectly, leaving black bars or cropping interface elements.

⚠️ Warning: If after installing the theme, the phone stopped responding to touch or the screen went out, press the volume button "Down" and the power button at the same time on the phone. 10-15 It's a forced reboot that often helps you get out of the interface freeze.

Also worth mentioning is the problem with heavy themes that contain a lot of animations: they can significantly load the Redmi 9 processor, causing heat and quick battery discharge. If you notice a decrease in performance after a change in design, it is better to return to the light standard theme.

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