Owners of Xiaomi smartphones sooner or later face a situation where the device starts to work slower and the free space in memory disappears rapidly. The main reason for this phenomenon is often accumulated cache — temporary files that applications create to quickly download data. Understanding where these files are stored and how to manage them is key to maintaining high performance gadget throughout its life.
The MIUI system installed on smartphones has its own file system specificity, different from pure Android. This can confuse the user who is accustomed to standard paths or other shells. In this article, we will discuss in detail how to find hidden cache folders, how they differ from these applications and which cleaning methods are safe and which can lead to the loss of important information.
We will look not only at standard system tools, but also at advanced methods of working with files through a computer and special utilities. Proper management of temporary files allows you to free up gigabytes of space without removing photos or contacts. Android/data, Access to which is limited in new Android versions, so knowing the workarounds becomes critical.
What is a cache in the MIUI system and why to look for it
Cache is a buffer memory that stores temporary data: image thumbnails, web page snippets, error logs, and update files in between. For HyperOS or older versions of MIUI, this is a necessary mechanism to speed up interface response. However, over time, these files can grow to inadequate values, occupying precious gigabytes of internal memory.
Cache search is necessary in situations where a particular application is not working correctly, hangs or consumes abnormally many resources. Sometimes broken files accumulate in the cache that interfere with the normal operation of the program, in such cases, manual cleaning or searching for a problematic directory becomes the only way to solve the problem without completely reinstalling the software.
It is important to distinguish between app cache and application data. If you clean the data, the program will return to the state immediately after installation, losing all your settings and logins, and the cache can be deleted almost painlessly, although this will lead to a slower first download of content after cleaning.
⚠️ Before deleting any files in system folders, make sure you do not erase important documents or media files that may have been mistakenly saved to the wrong directory.
Use of the built-in "Security" application
The easiest and safest way to find and remove the bulk of the garbage is to use a standard tool from Xiaomi developers.Security application is deeply integrated into the system and has access rights necessary to clean up system areas that are inaccessible to the average user.
To get started, launch the app and select Cleanup. The system will automatically scan and prompt you to delete temporary files, remnants of deleted applications and ad cache, a method that is most preferred for ordinary users, since it eliminates the risk of accidental removal of system-critical components.
Inside the app, you can also access the Deep Clean section, which analyzes large files and duplicates, and you can find forgotten videos or APK installation packages that also take up space, and using this tool regularly helps keep the phone in optimal condition.
It is worth noting that the security algorithms can sometimes be too aggressive or, conversely, skip some files, so a manual approach through the file manager is often required to clean completely.
Manual cleaning through File Explorer
For those who want to see what's taking up space, you can use a manual method through standard Explorer, and unlike automatic cleaners, you can visually measure the size of folders, open the Explorer app and go to the root of internal memory.
First of all, pay attention to the Download folder, where files from messengers and browsers often accumulate. MIUI, It's a place where you can store themes, recorders and logs of errors, and the path to them is usually like an internal drive. → MIUI → debug_log.
The Android folder is where the main cache of games and heavy apps is stored, and it has two key subdirectories: data and obb. Data has settings and cache, and Obb has heavy game files. Deleting obb content will require re-uploading data in games.
☑️ Checking before hand cleaning
When working with a file manager, it is important to be careful: Deleting excess files from unknown folders can cause malfunctions in the relevant programs. Always check the size of the folder before cleaning: if it weighs several kilobytes, it does not make sense to clean it.
Memory analysis in application settings
The memory system analyzer can identify the culprit behind the storage overflow without wandering through folders. Go to Settings → Apps → All applications. Sort the list by memory size to identify the most voracious programs.
Most often, social networks like Telegram or Viber and streaming services are the leaders of the list, and once you enter the properties of such an application, you will see a "Clear" or "Cash" button, clicking on it will free up space occupied by temporary files of this particular program.
The good thing about this is that it's spot-on. You don't clean the whole phone in a row, you just target the problem area, for example, if YouTube starts to slow down, cleaning its cache often solves the problem faster than rebooting the phone.
| Type of data | Wherever | Security of removal | Impact |
|---|---|---|---|
| Cash app. | Settings/Conductor | Tall. | Speeds up work, resets temporary data |
| OBB files | Android/obb | Medium | Requires reloading of games |
| Downloads (Download) | Download folder | Tall. | Frees up space, removes installers |
| Account details | Application settings | Low. | Resetting the program's entry and settings |
Hidden folders and access via computer
In newer versions of Android, access to the Android/data folder via a phone conductor can be closed for security reasons. To find and clear the cache in this case, the easiest way to connect the phone to your computer is via USB.
Select MTP file transfer mode in phone notifications. On your computer, you'll have full access to the file system without restrictions. This is the perfect way to upload heavy videos from instant messengers or clear the cache of navigators, which can weigh several gigabytes.
It is also convenient to find hidden folders starting from a dot (e.g..thumbnails) through your computer, which are often not visible in standard view mode, but occupy a significant space. To display them in Windows, you need to include the option "Show hidden files" in the view menu.
Why the folder Android/data phone-in-wait?
Using a PC also allows for more careful sorting of files by date and type, which is not easy to do on a small screen, especially when preparing a device for sale or transfer to another user.
Use of third-party utilities for analysis
If standard tools aren't enough, specialized analytics apps like Files by Google or DiskUsage come to the rescue, visualizing memory as a map, where the square size corresponds to the file or folder size.
This approach allows you to instantly find bloated caches that are not visible when you're browsing, for example, you may find that your browser cache is 5 GB, even though you don't remember downloading anything large, and visualization helps you make a quick decision about deleting.
However, be careful with applications that promise “one-click acceleration.” Many of them are themselves a source of advertising and can slow down the system, and it is better to use proven tools from well-known developers that simply show the structure of files, rather than trying to “optimize” RAM aggressively.
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Use the Files by Google app to securely search for duplicates and large files that the system doesn’t need.
⚠️ Warning: Avoid installing "cleaners" with dubious reputations that require extended permits.
Cleaning the cache of Google and MIUI system services
System services deserve special attention. Google Play services and the MIUI shell also accumulate cache, and you can find them in the general list of applications by filtering out system processes.
Cleaning the Google Play Store cache often helps if apps have stopped updating or when downloading errors occur, by going to the app settings, selecting Storage and clicking Clear Cache, and the data will not be affected.
With MIUI system components like Themes or Explorer, you need to be careful. Their cache is usually small, but resets can return standard interface settings. If you've been using customization extensively, after cleaning the cache, the themes can be reset to standard ones.
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Regularly cleaning the Google Play cache solves 90% of the problems with installing and updating apps on Xiaomi.
Remember that after major system updates, the cache volume may temporarily increase as the system rebuilds the indexing of files. During such periods, you should not panic and delete everything in a row - give the phone a couple of days to stabilize.