Owners of Redmi, Xiaomi and POCO smartphones often encounter a situation where the device starts to work slower or refuses to accept new files at all. The reason is almost always overcrowding. Unlike RAM, which can be cleared by a simple restart, physical disk space requires deeper analysis and management. internal storage. Unlike RAM, which can be cleared with a simple restart, physical disk space requires more in-depth analysis and management.
The Android system installed on the MIUI or HyperOS shell hides some of the service files from the eyes of the average user. However, to understand where exactly the gigabytes have disappeared, you need to use built-in diagnostic tools or third-party utilities. In this article, we will analyze in detail how to find space “eaters” and safely return free space to the device for operation.
Analysis of storage use through system settings
The first and most reliable way to determine disk occupancy is to go to the standard settings menu of the smartphone itself. Here the system provides the most accurate summary of occupied space. To get to the desired section, you need to sequentially follow the path Settings → About phone → Memory. On some firmware versions, this item may be located in the section Settings → Storage.
In this menu you will see a color chart that clearly demonstrates the distribution of data. The system automatically categorizes files, which allows you to instantly identify the main problem. Storage analysis will show how much space is taken up by applications, images, videos, audio files and the system cache. If the “Other” or “System” bar takes up a disproportionately large amount of space, this may indicate the accumulation of logs or residual files from uninstalled apps.
Please note that the amount of available memory is always less than that stated by the manufacturer. This is due to the fact that the operating system itself Android and the pre-installed shell MIUI occupy a significant part of the space immediately after purchase. For example, with a stated 128 GB, about 110 GB may be available to the user, and this is the norm, and not a defect in the device.
⚠️ Attention: Never try to delete files from system folders if you are not 100% sure of their purpose. Removing critical libraries may cause the smartphone to stop loading or lose the functionality of individual communication modules.
The system section "Memory" gives the most accurate picture of data distribution, as it takes into account even hidden application caches that are not visible in file managers.
Using the application "Explorer" and cleaning manager
For a more detailed search for specific files that take up space, the standard application Explorer (File Manager), which is preinstalled on all Redmi devices, is ideal. This tool allows you not only to see categories, but to go inside directories and sort files by size. At the bottom of the Explorer screen there is often a "Cleanup" button, which launches an automatic garbage scanner.
However, manual checking through the "Documents", "Downloads" and "Analysis" tabs gives the best result. You can sort all files by size to quickly find heavy videos or forgotten archives. Often, users forget about downloaded APK installation files or large attachments from instant messengers that are stored for years.
The function deep cleaning in the phone manager can find duplicate photos, blurry pictures and old screenshots. This is especially useful for those who actively use the camera. The system will offer to delete similar images, leaving only the highest quality, which can save several gigabytes in one procedure.
- 📂 Check the folder
DCIM/.thumbnails—thumbnails of photos that occupy hundreds of megabytes can be stored there. - 🗑️ Clear the folder
Downloadof old installers and documents that are no longer needed. - 📱 View the social network cache through the settings of the applications themselves, and not just through the general cleaner.
Before mass cleaning the "Downloads" folder, take a close look at files with the extension .pdf or .docx - they may be stored there important tickets, receipts or documents that you downloaded six months ago.
Searching for hidden folders and residual files of messengers
One of the most common reasons for lack of space is instant messengers, such as Telegram, WhatsApp and Viber. These apps save all received photos and videos to internal memory by default, creating complex folder structures. You can find them through the path explorer Android/media/org.telegram.messenger or WhatsApp/Media.
In the latest versions of Android, access to the folder Android/data may be limited for third-party file managers. In this case, it is recommended to use the built-in Explorer from Xiaomi or grant the special cleaning application advanced access rights through the Special Access menu. This will allow you to see hidden caches that are not displayed in the standard list.
Residual files appear after deleting games and heavy applications. Developers often leave behind folders with settings or caches that the system no longer needs. Finding them requires care: look for folders with the names of deleted games in the root of the internal memory or in the directory Games.
⚠️ Attention: The interface for accessing the Android/data folder has changed in different versions of Android (11, 12, 13, 14). If Explorer does not open a folder, this is not a phone fault, but system protection. Use official cleaning tools to work with this data.
Why does the "Other" folder weigh so much?
The "Other" category often includes cache files of streaming services (YouTube, Netflix), offline maps of navigators and temporary system update files. They do not clearly relate to photos, videos, or applications.
Transferring data to a memory card and to the cloud
If the internal memory is physically small, the only way out is to expand the available space by external means. Many Redmi models support the installation of standard memory cards microSD. After installing the card, you can transfer media content to it, freeing up fast internal storage for the system and applications.
To transfer files, use the “Move to SD card” function in the storage settings or through Explorer. However, it is worth remembering that not all applications can be completely transferred to external media due to Android security limitations. Often, only media files of a specific application are transferred to the card.
An alternative to a memory card is to use cloud storagesuch as Google Drive, Yandex.Disk or the Xiaomi proprietary cloud. Setting up automatic photo synchronization will allow you to delete originals from your phone after uploading them to the cloud, while maintaining access to them in the gallery.
| Data type | Recommended storage location | Advantages |
|---|---|---|
| Photo and Video | SD card or Cloud | Frees up to 50% of memory, access from any device |
| Applications and Games | Internal memory | Maximum loading and operating speed |
| Documents and Archives | SD card | Secure storage, does not affect system speed |
| Streaming cache | Regular cleaning | Prevents the disk from filling up unnoticed |
Diagnostics via connection to a computer (ADB and Explorer)
Sometimes the phone’s built-in tools do not show the full picture, especially if the system is unstable. In this case, the most effective method is to connect the smartphone to the PC via a USB cable. In file transfer mode (MTP), you will see the internal memory as a regular removable disk and will be able to analyze the folder structure on the big screen.
There is a tool for advanced users ADB (Android Debug Bridge). With its help, you can get detailed statistics on disk usage by each individual app. To do this, you need to enable USB debugging in the "For Developers" menu and enter the command in the computer terminal.
adb shell dumpsys diskstatsThis command will display a detailed report of how much space each application takes up, including its data and cache. This is an indispensable tool when some application “secretly” eats up gigabytes, but does not display it in the standard settings menu. You can accurately identify the culprit and decide whether to delete it or clear the data.
- 💻 Connect your phone with the included cable for stable data transfer.
- 🔍 Use the file size search in Windows Explorer to find the heaviest objects.
- 🛡️ Do not format internal memory through a computer unless you have made a backup copy.
⚠️ Attention: When deleting files through your computer, be extremely careful with system files. Delete only those files that you created yourself (photos, music, documents). Deleting folders with names like "android", "data", "obb" may disrupt the operation of applications.
☑️ Check before connecting to a PC
Resetting settings as a last resort to free up space
If none of methods did not help, and the memory is occupied by incomprehensible system errors that cannot be removed manually, a radical method remains - resetting to factory settings. This procedure completely erases all data from the device, returning it to "as-store" state. This is guaranteed to clear 100% of the user's memory.
Before performing this operation, it is critical to create backup all important data. You can use Mi Cloud, Google Account or transfer files to your computer. After the reset, you will have to set up your phone again and install applications, but you will get a clean system without garbage.
To perform a reset, go to Settings → About phone → Reset settings → Erase all data. The device will reboot and begin the cleaning process, which may take from 5 to 15 minutes depending on the storage capacity. After turning on, the phone will work as quickly as possible, since file fragmentation will be eliminated.
Full reset is the only way to remove “ghost” files and system junk that cannot be cleaned normally, but requires a mandatory backup data.
Why does the memory quickly fill up again after cleaning?
Most likely, you have automatic media downloading active in instant messengers or applications. Check your Telegram and WhatsApp settings and disable autosaving of photos and videos to the gallery. It is also possible that some application does not work correctly and creates error logs, filling the memory cyclically.
Is it possible to delete the MIUI and CloudEngine folder?
No, these folders contain system shell and synchronization data. Removing them will lead to errors in the operation of themes, factory applications and Xiaomi cloud services. You can only clear the contents of folders inside them (for example, the theme cache), but not the directories themselves.
Does full memory affect the charging speed?
Directly - no. However, when the memory is critically full (less than 500 MB free), the system begins to actively use the page file, which loads the processor and memory. This can cause the device to heat up, which is why the power controller can artificially reduce the charging current for safety.
How to find the real memory capacity if it differs from the declared one?
The difference between the declared 128 GB and the real ~119 GB in the system is explained by a different counting system. Manufacturers count in decimal (1 GB = 1 billion bytes), and Android - in binary (1 GiB = 1024 MB). This is not a defect, but a feature of measurement standards.