Xiaomi, Redmi and POCO smartphone owners often face the desire to personalize their device’s interface. The MIUI shell or the new HyperOS is famous for its wide customization capabilities, and the key element here is the themes of design. However, when it comes to manually managing files, copying or deleting specific design elements, users are often lost in the mazes of the Android file system.
Finding the right directory can be a real headache due to the constant changes in the directory structure that the manufacturer introduces when updating versions of the operating system. In this article, we will analyze in detail which folder the Xiaomi themes are located in, examine the differences between the shell versions and learn how to work with the design files safely and efficiently.
Understanding the structure of the file system is not only important for advanced users, but also for those who want to make room for memory or transfer favorite designs to a new gadget. We will consider both standard access paths through the built-in Explorer, and deeper system directories, access to which may require additional rights or special utilities.
Themes' standard directory in MIUI and HyperOS
The main repository of all downloaded and applied design themes in Xiaomi smartphones is located in the root section of internal memory, which is the most obvious place to look first when searching for design files. The path to this directory has remained relatively stable over the years, making navigation easier for users.
To get to the right place, open the standard Explorer app and go to the root of internal memory. Here you will find a folder called MIUI, and inside it is the theme directory. This is where the basic data related to the visual design of your interface is stored. It is important to note that in newer versions of the shell, the structure may vary slightly depending on the regional firmware.
Within this directory, you can often find files with the.mtz extension, which are archives of themes, cached data and temporary files necessary for the interface to work quickly, but be careful: direct editing files in this folder without backing up can cause theme to malfunction.
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Before any manipulation of files in the theme folder, back them up on your computer or in cloud storage to avoid data loss if you make an error.
Users often confuse this folder with system directories that are not accessed root-rights. /storage/emulated/0/MIUI/theme directory is public, and work with it does not require special permissions of the superuser, making it convenient for basic operations with files.
Hidden System Paths and Deep Structure
In addition to the standard user directory, there is a deeper layer of storage that is often hidden from the eyes of the average user, system themes and critical registration files can be located in the /data section, access to which is only possible if root rights are available, which ensures the system is safe from accidental removal of important components.
If you use third-party root-enabled file managers like Root Explorer or MiXplorer, you can see the full path: /data/media/0/MIUI/theme.It often stores originals of themes that were downloaded through the official Themes app but have not yet been unpacked or fully activated.
- 📁 The content folder inside the system directory contains unpacked active theme resources.
- 📁 The cache directory stores temporary thumbnails and previews to speed up the interface.
- 📁 Files with the.mtz extension are archives and can be renamed.zip to view content.
It is important to understand the difference between user space and system partitioning. Making changes to system files without proper qualification can lead to a device bootloop (cyclic reboot), so for most transfer or (backup) tasks, it is enough to work with the user directory in internal storage.
Why can a folder be empty?
Working with.mtz files and their purpose
Files with.mtz extension are native shell themes format MIUI. It's basically normal. ZIP-archives which contain XML-The markup, images, fonts and other resources needed to change the appearance of the system, and understanding the structure of these files allows you not only to migrate themes, but also to modify them.
To look inside a file, you just need to rename it from.mtz to.zip. You can then open it with any archiver and see the internal structure, usually with icons, images, fonts, and configuration files.
| Element of the topic | Description of the contents | Where in the archives |
|---|---|---|
| Icons | A set of icons for applications | /icons/ |
| Wallpapers | Desktop wallpaper and lock screen | /images/wallpaper/ |
| Status Bar | Making the top line of the state | /images/statusbar/ |
| Settings | Configuration Theme File (XML) | /description.xml |
Modifying files inside the.mtz archive allows you to create unique designs, but it requires care. XML-Files or the lack of necessary graphic elements may cause the theme to fail or to show up with errors.Always test modified themes on a secondary profile or device.
☑️ Checking the theme file before installation
Access issues and superuser rights
With the release of new versions of Android (11, 12, 13 and above), Google and Xiaomi have significantly tightened their security policies, restricting access to certain parts of the file system even to standard file managers, and protecting user data and system integrity.
If you can’t find a theme folder or it seems empty even though the themes are installed, this may be due to access restrictions to the Android/data partition. In new versions of the OS, access to this directory for third-party applications is closed by default. To circumvent this restriction, you can use Xiaomi’s built-in Explorer or special plugins for file managers.
⚠️ Warning: Trying to get root rights on modern Xiaomi smartphones could result in blocking some features, such as Mi Pay or banking apps.
For most users, working with themes does not require deep intervention in system files, standard functionality of the Themes application and access to the user folder. MIUI/theme It is sufficient to install, delete and back up the designs, and the use of root rights is justified only in cases of deep modification of the system.
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Access to system folders on newer versions of Android is limited by security policies, so the rights of the average user are often enough to work with theme files.
Alternative ways to manage topics
If direct access to files through Explorer is difficult or seems inconvenient, there are alternative methods for managing themes on Xiaomi. One of the most effective ways is to use the Themes app itself, which allows you to export and import designs.
You can also use a computer to manage files. By connecting your smartphone over USB in file transfer mode (MTP), you will access the file system via Windows Explorer or Finder macOS. This is especially convenient for mass copying large theme files or creating backups to an external hard drive.
- 🖥️ Use of the ADB-commands to copy files directly to system directories.
- ☁️ Synchronize the theme folder through cloud services (Google Drive, Mi Cloud) for access from different devices.
- 📲 Application of third-party launchers that have their own theme storage and are independent of the system folder MIUI.
Using ADB (Android Debug Bridge) requires connecting your smartphone to your PC and installing drivers. Adb pull /sdcard/MIUI/theme C:/Backup/Themes will quickly copy all the themes onto your computer. It is a powerful tool for advanced users to automate the backup process.
Cleaning up garbage and optimizing space
Over time, a topic folder can accumulate a significant amount of junk files — remnants of deleted themes, preview cache and temporary data — that can take up hundreds of megabytes of precious space in the device’s internal memory, especially on models with a small storage capacity.
For safe cleaning, use built-in MIUI optimization tools. Go to the Security → Cleanup app, the system will analyze the files itself and suggest removing unused data. This is a safer method than manually deleting files from theme folder, where it is easy to make a mistake and delete the desired one.
If you do decide to manually clean, carefully check the date of file modification. Files that have not changed for a long time and do not match the names of the installed themes are likely to be residual. However, always be careful: the system cache may be necessary to correctly display the interface after a reboot.
⚠️ Note: Deleting current.theme or similar files with the prefix "current" can reset your theme to standard and disrupt your personalization settings.