Xiaomi’s modern smartphones have become powerful multimedia centers, where thousands of documents, photos and installation packages are stored. Users often face a situation where, after downloading information from the Internet or receiving it through a messenger, the system does not offer to immediately start the desired object, which can cause confusion, especially if the file has a specific extension or was damaged during download.
The MIUI operating shell and the new HyperOS have a file system that is different from pure Android. Owners of Redmi, POCO and Mi flagships must understand the basic principles of internal storage navigation. The ability to correctly identify the data format and choose the appropriate application is a key skill for effective use of the gadget.
In this article, we will discuss all possible scenarios for opening data, from standard actions to using third-party software and connecting to a computer. You will learn why the phone writes “file is not supported” and how to quickly fix this error. We will also touch on the topic of security, since opening executable files from unverified sources can lead to infection of the system.
Standard Explorer and Data Type Search
The first and most obvious tool is the File Manager, which is pre-installed on all of the brand’s devices, and automatically sorts the contents of memory into categories: images, videos, music, documents, and other content. APK-To find the right item, you just run the program and select the appropriate tab, where everything is sorted by the date of creation.
However, sometimes standard sorting doesn't help if the file has been hidden or moved to the system folder, so you need to use the name or extension search function. At the top of the Explorer interface, there's an input bar where you can type in a part of the name or format, such as.pdf or.rar. The system will instantly filter the results and show all the matches in the internal storage and on the SD memory card.
It's important to distinguish between open and run. For multimedia content and documents, the phone will immediately suggest a suitable player or reader. If you try to open an executable.apk file, the system will warn you of potential danger. In MIUI security settings, you often have a ban on installing applications from unknown sources, which you will need to manually remove before you start the installer.
- 📂 Standard Explorer automatically groupes files by type for easy navigation.
- 🔍 Extension search allows you to quickly find objects even in the depths of system folders.
- ⚙️ To launch APK-Files require permission to be installed from unknown sources.
- 📁 Hidden files can be found by enabling the display of hidden elements in the Explorer settings.
⚠️ Note: When you open files with the.apk extension from unverified sources, you risk infecting the device with malware. Always check the installer's digital signature.
Solving the problem of "file is not supported"
A common problem with Xiaomi users is that they get an error message when they try to run a specific format, which means that there is no software component in the system that can decode data or display its content. Android is not a universal platform out of the box for all existing formats, especially if it is a specific office documents or rare video codecs.
To solve this problem, you need to install a specialized application from the Google Play Market. For example, for archives of RAR and 7z formats, you can not do with standard tools - you will need an archiver like ZArchiver or RAR. For video files with unusual audio tracks or subtitles, the best solution will be VLC Player, which contains embedded codecs.
Sometimes the error is caused by the file itself being corrupted when downloaded. If the download is interrupted by 99% or the network is unstable, the data structure will be broken. In such cases, re-downloading from another source often solves the problem, and it is also worth checking whether access to memory for a particular application is blocked in the privacy settings.
☑️ Diagnostics of Opening Error
There is also a nuance with access rights in new versions of Android. The guide app can “see” a file, but not have the right to open it if it has not received the appropriate permission from the system. In such cases, you need to go to Settings → Apps → All applications, find the Explorer used and make sure that it has access to “Storage” or “Files and Media”.
Work with archives and compressed data
Archives are one of the most popular ways to transfer large amounts of data. Xiaomi smartphones often have difficulty opening multivolume archives or password-protected files. Standard Explorer can work with ZIP, but for RAR, TAR or GZ formats, its functionality may not be enough.
The best solution for owners of Xiaomi is to install a third-party archive manager, which allows not only unpacking data, but also creating new archives, adding files to existing ones, and even converting formats. When working with large archives (more than 2 GB), it is important to consider the availability of free RAM, since the unpacking processor requires the resources of the processor.
| Format | Support for MIUI | Recommended annex | Features |
|---|---|---|---|
| ZIP | Complete. | Conductor | Opening natively |
| RAR | Partial | RAR / ZArchiver | Needed for multivolume. |
| 7Z | No. | ZArchiver | High compression ratio |
| TAR.GZ | No. | ZArchiver | Often on Linux systems |
When unpacking archives obtained from the Internet, there is always a risk of viruses. Xiaomi’s Security Scan may not notice the threat inside the packaged file, as it does not scan the contents of the archive until it is extracted.
Use of Third-Party File Managers
The system's regular tools are sometimes too limited in functionality, and advanced users prefer to install alternative file managers that provide access to system partitions, have built-in functionality. FTP-server and support cloud storage. One of the best solutions is considered Solid Explorer or FX File Explorer.
These applications allow you to open files in code editing mode, which is useful for developers or those who like to modify the configuration files of games and applications. The dual-panel interface makes it much easier to copy and move data between folders. They also know how to connect to NAS network storage using SMB and FTP protocols.
When installing a third-party conductor, MIUI can aggressively close its background processes to save energy, so to avoid this, you need to go to the battery settings, find the application, and set the "No Limits" mode, which will ensure stable operation when copying large amounts of data or background loading.
- 🚀 Third-party managers give access to hidden Android system folders.
- ☁️ Integration with Google Drive, Dropbox and Yandex.Disk in one interface.
- 🔒 The ability to set a password to start the guide application itself.
- 📡 Support for Wi-Fi file transfer without cables.
⚠️ Warning: Giving full file system permissions to a third-party application carries risks. Use only trusted managers with a high reputation in the Play Market.
Connecting to a computer to access files
When the smartphone screen is broken or control through the touchscreen is difficult, the most reliable way to open files is to connect to a PC. USB-cable and computer with drivers installed (usually installed automatically) After the connection, select the mode of operation USB In the notification curtain - "File transfer» (MTP).
The phone will show up on the computer as an external drive, and you can go to the Internal Storage folders. DCIM, And if you're copying data to your hard drive, it's the perfect way to save information if your phone is not working properly, but if your device is locked with a password, unlock it with your mouse or keyboard. OTG-The adapter will be easier than trying to guess the pattern lock on the screen.
In some cases, the computer may not see the phone. USB-port, preferably on the back of the system unit, or replace the cable. ADB They can also help establish a connection for deeper access to the file system via the command line, but this requires some technical knowledge.
adb pull /sdcard/Download/myfile.zip C:/Backup/This command will allow you to copy a file from your phone to your computer even if the screen is not working, provided that previously it was allowed to debug over USB. For ordinary users, a standard MTP mode is sufficient, which does not require commands.
Recovery of damaged or unreadable files
If a file is opened but “broken” content is displayed (artifacts in the photo, porridge instead of text), this indicates damage to memory sectors or a violation of the structure of the file header. In some cases, specialized recovery utilities such as DiskDigger help, although their effectiveness on modern phones without root rights is limited.
Often the problem is not the file itself, but the application that opens it. Try changing the default program. For example, if the Xiaomi gallery doesn't show a photo, install Google Photos or QuickPic. If the Word document doesn't display correctly, try opening it through Microsoft's office suite, not through the built-in viewer.
In critical situations, when data is critical, you can try to rename the file extension. Sometimes a file with an erroneous extension (for example, a video saved as.dat) starts opening if you manually prescribe the correct extension to it.mp4.