Owners of Xiaomi, Redmi and POCO smartphones often face the need to extract content from compressed files, such as installing new firmware through Recovery, transferring large amounts of data, or simply downloading documents from instant messengers. Standard tools of the MIUI or HyperOS operating system do not always correctly handle all types of compression, which causes confusion among users.
There are several ways to do this, ranging from built-in file manager tools to PC software, depending on the format of the original file (.zip,.rar,.7z) and the ultimate goal of the operation. Mistakes in the system archives can lead to errors when updating the phone.
In this guide, we will take a detailed look at all current unpacking methods, look at common errors and provide solutions for complex cases, and learn how to safely work with files of any type, whether it is multimedia or critical system images payload.bin.
Standard MIUI tools and built-in archiver
The MIUI shell and the new HyperOS have built-in functionality to work with the most popular compression formats. In most cases, the user does not need to install third-party applications, since the basic File Manager successfully copes with.zip archives. This is the fastest way to open documents or images.
However, it is worth considering that built-in compression algorithms may not support the complex folder structures or specific codecs used in.rar archives with passwords. If the system gives an error or shows a blank list of files when trying to open a file, then the built-in functionality is not enough.
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Xiaomiβs built-in archiver is best for.zip files created by standard Windows or Android tools. For complex formats, itβs better to use specialized software.
To work with a standard archiver, you just go to the Explorer application, find the file you want and click on it. If the format is supported, you will see a button "Extract" or "Unpack." It is important to monitor the destination route so that you do not clutter the internal memory with duplicate files.
- π Open the Explorer app on the desktop.
- π Go to the Download or Download folder.
- π Click on the archive file and select the action Unpack.
- π Specify the target folder for data extraction.
Third-party applications-archivators for Android
When regular funds fail, specialized applications from the Google Play store come to the rescue. The leaders in this niche are ZArchiver and RAR from developer RARLAB. These programs have advanced functionality that allows you to work with encrypted archives, fragmented files and rare compression formats.
Using third-party software gives the user complete control over the process, so you can not only unpack, but also create archives with a high degree of compression, add passwords and verify the integrity of data, this is especially true for those who often exchange large amounts of information.
When installing these applications, pay attention to the permissions requested. To work properly, the archiver needs access to the entire file system of the device, without which he will not be able to read the contents of the archive or write unpacked files to the desired directory.
- π² Download ZArchiver or analogue from Play Market.
- π² Give the application access to files (registration management permission).
- π² Find the right archive and click on it.
- π² Select the option "Unpack in..." or "Unpack here".
Unpacking firmware and system files
Special attention should be paid to the work with the firmware archives that users download to update the phone through Recovery or Fastboot. Often downloaded file has the extension.zip, but inside may contain another archive or a specific folder structure.
It is critical to understand the difference between an archive for an air-to-air update (OTA) and a full firmware. In some cases, a firmware file needs to be renamed or removed from it, a specific payload.bin file for use in special utilities on a PC. Incorrect unpacking can violate checksums.
β οΈ Warning: Never attempt to unpack and modify system firmware files unless you have sufficient knowledge. Changing the structure of the archive can turn a device into a brick".
For users who are engaged in custom build or rollback versions, it is important to know that some Xiaomi firmware archives require a hash amount check. If after unpacking the file weighs 0 bytes or is incorrectly sized, the download has been interrupted, and you can not use such a file.
βοΈ Checking the firmware archive
The table below shows the main file types you can encounter when working with Xiaomi software and how to deal with them:
| File type | Expansion | Action. | Wherever used |
|---|---|---|---|
| OTA Update | .zip | Don't unpack. | Update via Recovery |
| Full firmware. | .zip / .tgz | Unpack on PC | Firmware through Fastboot |
| System image | .img | Don't touch it. | Inside the firmware archive |
| Firmware script | .bat / .sh | Launching on PC | Automatic installation |
Using a computer to unpack large files
If the archive is larger than a few gigabytes or the smartphone file system is unstable, it is advisable to use a computer. The PC has more processing power and a reliable file system, which minimizes the risk of data corruption during the unpacking process, which is especially important for large archives with games or media files.
On a computer, it is best to use time-tested programs such as: 7-Zip They're guaranteed to handle all compression formats correctly, including multivolume archives, and once unpacked, you can transfer files to your phone through the phone. USB-cable.
When connecting your smartphone to your PC, select the USB File Transfer (MTP) mode. Do not use Charge Only mode, otherwise the computer will not see the device's internal memory. Also make sure that there is enough free space on the computer's drive, as the size of the unpacked files can be significantly larger than the archive size.
- π» Connect your smartphone to your PC through quality USB-cable.
- π» Select the "File Transfer" mode in the phone notification curtain.
- π» Copy the archive to the computer's hard drive.
- π» Unpack the file through 7-Zip and return the contents back.
What to do if your computer canβt see your phone?
Solving Typical Errors and Problems
In the process, users often encounter error messages such as "File is corrupted", "Inadequate memory" or "Incorrect password". The error "Inadequate memory" means that there is no space on the internal drive equal to the size of the decompressed data. In this case, you need to free up space or use the external SD-map.
If an archive requires a password, and you don't know it, you can't unpack the contents legally. Modern encryption algorithms (AES-256) protect data reliably. brute-force passwords can take years to get, and the only way out is to find the source of the file and ask for the password from the author.
β οΈ Note: A "Crc error" or "File corrupted" error often indicates that the archive was not fully downloaded. Try downloading it again, preferably via Wi-Fi connection.
Another common problem is that the path to the file is too long. Android has limitations on the length of the path to the file. If the archive contains many nested folders, try unpacking it into the root directory or renaming the folders into shorter titles before archiving.
File security and verification
Unpacking files from unverified sources carries security risks, there may be malware hiding inside the archive, masquerading as harmless documents or pictures, and it is recommended to check them with antivirus before opening any files obtained via Bluetooth or from dubious sites.
Special care should be taken with files with a dual extension, such as photo.jpg.exe. On smartphones with the embroidery display enabled, this is noticeable immediately, but by default Android can hide the file type, showing only the name.
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Always check the source of the archive download. Files from official Xiaomi sites or verified forums (4PDA, XDA) are safer than downloads from random Telegram channels.
For additional protection, you can use cloud services like Google Drive, which automatically scan downloaded files for viruses. Upload a suspicious archive to the cloud and the system will report if the file contains threats before you open it on your device.