Where topics are stored in shaomi: the full path to files and management

Users of Xiaomi, Redmi and POCO smartphones often face a situation where the standard design set ceases to please the eye, and there is a desire to install something unique. The MIUI shell and its current version of HyperOS provide tremendous opportunities for customizing the interface, but the mechanism of working with the themes files often remains hidden from the eyes of the average gadget owner. Understanding where the physical location of the registration data opens the door to manually managing content, backing it up and installing modified versions.

By default, the system hides downloaded resources in system folders that can be accessed with restricted permissions. However, with the exact directory structure, you can manage.mtz archives yourself, clear cache from old versions, or transfer your favorite skins to a new phone without rebooting, especially for those who prefer to install themes manually, bypassing the built-in store.

In this article, we will take a closer look at the file structure, how to access hidden memory, and learn how to safely manipulate the design files, how to find deleted themes from the store, how to activate them through Themes, and what to do if the standard path does not lead to the desired result.

Standard path to theme files in device memory

The main directory, where all downloaded and applied themes are stored, is in the internal storage of the smartphone, the path to it remains unchanged for many generations of devices running on Android and MIUI. To get to the right place, the user needs to open a standard file manager or any third-party conductor, for example, Total Commander or FX File Explorer.

The absolute path is this: Internal memory → MIUI → theme. It's inside the theme folder that the system puts all the data associated with the visual design. It's not just the archives of the themes themselves, but also the logs, the icon cache, and the temporary files. It's important to understand that deleting files from here can lead to a reset of the current theme to a standard one.

Within this directory, you often find subfolders with names consisting of a set of random characters or numbers, and these are the unique IDs of the themes that you set, and they contain all the graphic elements, wallpaper, fonts, system sounds and application icons, and direct editing of the contents of these folders without special preparation can disrupt the integrity of the design.

It’s worth noting that in recent versions of HyperOS, Google and Xiaomi have increased access restrictions to system folders for third-party applications. If your Explorer doesn’t see the MIUI folder, try using the built-in Explorer app from the system developers, which has the necessary default permissions.

Folder structure and file types

So, when you look at the path, it's important to understand what we're seeing there. The Android file system is organized logically, and the theme folder is no exception. Inside the theme directory, you might encounter several types of objects, each of which has a different function in the interface.

The main file of any theme has the extension.mtz. It is a compressed archive containing all the resources. However, in the data folder (access to which root-rights are often required), the already unpacked data of the active theme is stored. For the average user who does not have superuser rights, the files in the user directory are of interest.

• 📁 Data folder – here is stored data of the current active theme, including cache of images and previews.
• 📦.mtz files are theme installation packages that can be transferred between devices or saved to a computer.
• ⚙️.cfg files – configuration files that store font settings, icon sizes and system animations.

Users often confuse theme folder with folder theme_cache. The second one is only used for temporary storage of data that speeds up the interface, and cleaning the cache is safe, but it will lead to a preview loading longer the next time you enter the themes menu.

⚠️ Note: Do not delete files with the.mtz extension manually through Explorer if you plan to use these themes in the future. Deletion through the file manager is not always correctly reflected in the Themes app, which can lead to “broken” entries in the list of my works.

For deep customization, enthusiasts often unpack.mtz archives on a computer, replace graphic elements (such as battery icons or volume sliders) and pack back. XML-markup.

Access to Hidden System Partitions and Root Rights

The standard MIUI/theme path only allows you to work with user data. However, full theme management, including editing the system files framework-res.apk or SystemUI.apk, requires access to the root partition of the system.

Getting Root rights on modern Xiaomi devices is a complex and risky process. It requires unlocking the bootloader, which is officially only possible through waiting for 7 days (sometimes longer) and binding the Mi Account. After unlocking, a modified kernel or rights manager, such as Magisk, is installed.

With root rights, the path to full theme data changes to /data/media/0/MIUI/theme or deeper to the system partition /data/system/theme. It stores a database of all the topics ever installed.

• 🔓 Activate paid themes for free (not recommended and violates the license).
• 🛠 Make changes to system icons that don’t change the usual themes.
• 💾 Make full backups of the state of the design system before experiments.

If you are not an Android user, it is better to limit yourself to standard methods of installing themes through a store or.mtz file. Interfering with system partitions without proper experience often leads to unstable sensor operation or the disappearance of the image.

How to find and install a theme from a.mtz file

One of the main questions that arise when studying file structure is, “How do you install a theme if it’s not in the store?”.mtz is native to the MIUI shell, and you can install it directly from the device’s memory if you know the correct action algorithm.

Often users download themes from third-party resources (such as 4PDA or Telegram channels), and the file goes to the Download folder. To "see" the file and suggest installing it, it must be correctly placed. Although modern versions of the Theme app can scan memory, it is safer to place the file in the correct directory.

Manual installation algorithm:

1. Copy the downloaded file name theme.mtz to the MIUI/theme folder in internal memory.
2. Open the Topic app.
3. Go to the profile (the icon of the man) and select the "Themes" section.
4. Your theme should appear in the list of local files. Click on it and select "Apply".

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If the theme does not appear in the list of “Local”, try to rename the file, removing the Russian letters and special characters from the title, leaving only the Latin alphabet.

Sometimes the topic is loaded but not applied, and this may be due to a region-lock, so changing the region to India or Singapore, or using special patches for regional restrictions, helps.

File location table depending on MIUI version

The file structure may vary slightly depending on the firmware version, and below is a comparative table of paths and features for different shell versions.

As you can see from the table, the main path remains the same, but access rights change. Newer versions of Android (11, 12, 13, 14) have a Scoped Storage policy that prohibits applications from freely accessing the root of internal memory, so Xiaomi’s built-in Explorer is the most reliable tool for navigation.

Transfer and backup of topics

Knowing where the topics are stored in the shaomi is critical when changing devices, and instead of re-searching for the store’s favorite design (which may become paid or disappear), you can simply copy files.

To create a backup, just find the desired.mtz file in the folder. MIUI/theme (If it is saved) or extract it from the cache folder if the theme was installed earlier. Copy the file to your computer or to cloud storage (Google Drive, Yandex.Disk).

When transferring to a new phone:

• 📥 Upload the.mtz file to any folder of the new smartphone.
• 📂 Move it to the directory. MIUI/theme convenienceally.
• 🎨 Open the Themes app and apply the file through the profile.

⚠️ Note: Themes created for older versions MIUI (for example, MIUI 10), may not display correctly on HyperOS. Always check the compatibility of the theme version with your firmware version to avoid artifacts on the screen.

Also, remember that some themes depend on specific system applications. If you transfer the theme from a phone that has the Music app installed from Xiaomi to a phone with Google Play Music, the visualizer or player icons may not work.

Frequent problems and their solution

Users often encounter errors when working with themes files, the most common being “File is corrupted” or “Theme is not supported,” which often happens when downloading themes from third-party resources where the file may have been modified or corrupted during download.

Another problem is that there is no file after cleaning the cache. Many users use Cleanup in the Security app without realizing that the cache of the themes is also getting there. If you delete files from MIUI/theme, you can only restore the theme by re-uploading it from the store or from a backup if it was made in advance.

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The main theme file has the.mtz extension and should be in the MIUI/theme folder for correct display in the Themes app.

If the theme is applied but the icons are still standard, check the theme settings. In the Themes app, click on the current theme, select Set up and make sure the tick opposite the Icon is active. Sometimes the system launcher requires a reboot to apply all the changes.

FAQ: Frequently Asked Questions