Owners of Xiaomi, Redmi and Poco smartphones often face a situation where notifications of a shortage of free space appear suddenly, the MIUI system or HyperOS can report that the storage is full, but when you try to find the culprit, the user sees only standard folders, the size of which does not correspond to the occupied volume, this is a classic problem that requires a detailed analysis of the file structure.
The main challenge is that the Android operating system hides many system processes from the eyes of the average user. System logs and deleted files can take up gigabytes of space, remaining invisible in a standard conductor. Understanding how resource allocation works is the first step to successfully clean a device without losing important data.
In this article, we will take a closer look at the tools that are built into Xiaomi’s shell, as well as third-party analysis methods. You will learn to distinguish useful data from digital garbage and understand why removing applications does not always free up space. A competent approach to memory management will prolong the life of the drive and speed up the interface.
Built-in Storage Analyzer in MIUI and HyperOS
The first and most secure diagnostic tool is the regular Security app, which is pre-installed on all the brand devices and has access to system partitions that are closed to third-party software. To run the analysis, you need to go to Settings → About Phone → Storage or open the Security app and select Cleanup.
The system will automatically scan partitions and give you a color diagram of the distribution of data, and here you will see the main categories: applications, images, videos, documents, etc. It is important to understand that the category “Other” often causes the most questions, since it combines the cache of messengers, remnants of remote programs and temporary update files.
⚠️ Note: When using Deep Cleanup, carefully read what is proposed to be removed. Sometimes the system marks as garbage downloaded files from work chats or offline maps of the navigator.
For more detailed analysis, you can use the built-in analysis tool. Go to Settings → Storage and wait for the scan to be completed. The system will show a list of applications, sorted by size, and clicking on a particular application, you will see a breakdown by the size of the application itself, user data and cache.
Analysis of Android folder and messenger cache
The biggest amount of free space is usually eaten by messengers like Telegram, WhatsApp and social networks. These apps create huge copies of media files that are duplicated in the gallery and in internal folders. To find this data, open the Explorer app and go on the path Internal Drive → Android → media.
It stores folders of all installed applications. For example, the directory org.telegram.messenger contains all received Telegram files. Inside the folder cache can lie gigabytes of temporary images and videos that have already been viewed but not deleted. Manual cleaning of these directories is often more effective than standard optimization scripts.
- 📂 folder WhatsApp/Media — This is where all photos and videos are stored, even if you have already deleted them from the chat.
- 📂 Directory Android/data — It contains a cache of games and heavy apps that can grow to 10-20 GB.
- 📂 Catalogue DCIM/.thumbnails — a hidden folder with thumbnails that sometimes inflates to incredible sizes.
The.thumbnails folder is a system cache of sketches of photos. If you take pictures often or get a lot of photos in messengers, this file can take several gigabytes. It can be safely deleted, but over time it will be recreated. For constant monitoring, you better use specialized scripts or cleaner applications.
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Use the Cache Clearing function inside the app’s settings (like Telegram), not just through the File Manager, which guarantees the integrity of the messaging database.
Search for hidden and system files
Not all files are displayed in standard Explorer mode. Hidden files and folders that start with a dot often remain out of the user's attention. To see them, open Explorer, click on the menu (three bars or dots), and activate the Show Hidden Files switch.
Once you turn on this option, you may find folders with names like.cache,.temp, or traces of long-deleted games. System junk often hides here. However, be careful: deleting files with unknown names at the root of the system can lead to unstable work Xiaomi.
| Type of folder | Location. | Can I remove it? | Risk |
|---|---|---|---|
| Cash app. | Android/data/[package_name] | Yes (with caution) | Resetting the application settings |
| tumbnails | DCIM/.thumbnails | Yes. | Low (to be recreated) |
| Log files | MIUI/debug_log | Yes. | Low. |
| System configuration | Android/obb | No. | High (games won't start) |
Another source of missing memory is debugging logs, and if a phone has ever had a developer mode or a system failure, logs could have accumulated, found in a MIUI folder or a log at the root of the internal drive, which rarely exceeds 100-200 MB, but can be as large as several gigabytes in case of critical errors.
Why does the “Other” folder not shrink after cleaning?
Use of third-party disk analyzers
If the built-in tools can't find the source of the overflow, specialized snails come to the rescue. Applications like DiskUsage or Files by Google provide a visual memory card. They plot a graph where each rectangle is the size of a file or folder on the disk.
This visual approach allows you to instantly detect anomalies, for example, you can see a huge block that turns out to be a forgotten podcast file or a mistakenly stored video of the screen, visualization makes it much easier to navigate through thousands of files.
These analyzers on modern versions of Android (11, 12, 13, 14) require special permissions. Xiaomi may restrict access to the Android/data folder for third-party applications. To get around this, follow the on-screen instructions for full file access when you first start the analyzer.
⚠️ Warning: Don't install questionable accelerators and cleaners from ads. They are often the source of trash and intrusive notifications themselves. Use only proven open source tools or from well-known developers.
One of the most powerful tools is Total Commander, which has a disk analysis plugin that allows you not only to see the structure, but also to immediately remove or move the objects found. The combination of a powerful engine and a clear interface makes it a favorite among advanced Xiaomi users.
☑️ Check before deleting large files
Cleaning Update Cache and Residual Files
Shell MIUI And HyperOS stores the system update packs even after they're installed. 2 before 5 GB. You can find them in a folder. downloaded_rom If the system is stable and you don't plan on flashing it, you can clean that folder.
Also worth paying attention to the remnants of remote applications. In the standard deletion through settings, some files may remain in memory. To find them, use the "Delete Applications" function in the settings or third-party uninstallers that find the "tails" of remote programs.
Another hidden user of space is autosave and drafts. Many apps back up before upgrading or crashing. Check Backup folders at the root of the storage. If there are old backups of contacts or text messages that you don't need, deleting them will free up valuable space.
Remember the shopping cart. In Xiaomi, deleted photos and videos often end up in the gallery or guide cart, where they are stored for 30 days.
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folder downloaded_rom It contains the system updates installation files, and once the phone is successfully installed and restarted, this folder can be deleted without affecting the device.
Memory overflow prevention on Xiaomi
To keep the problem of space shortages from returning, you need to establish regular maintenance of the device. Automating cleaning processes will help keep the system in good shape. Xiaomi's built-in tools allow you to set up automatic garbage cleaning, but it is better to manually control this process at least once a month.
Use cloud services to store media files. Google Photos, Yandex.Disk or Xiaomi cloud can automatically upload photos and delete their local copy, freeing up gigabytes of space, this is especially true for models with a small amount of internal memory.
- 📅 Check Downloads once a week – there is often a lot of extra stuff.
- 📅 Turn off auto-save statuses in WhatsApp and Telegram if you do not use this feature.
- 📅 Clean your browser cache regularly, especially if you like watching videos online.
Keep an eye out for app updates. Developers often optimize code by reducing cache size and improving memory performance. Outdated versions of programs may not work properly and create redundant temporary files.