Xiaomi’s current smartphones, which are powered by MIUI shells or the new HyperOS, have powerful hardware, but over time, even flagship models can start to run slower, due to the accumulation of temporary files, app cache, residual data after deleting programs, and system “garbage” that regular cleaning tools don’t always see. Memory cleaning is not just freeing up space for photos, it’s a critical procedure to keep the Android operating system running.
Many users mistakenly rely on the standard Security app, but embedded algorithms often leave deep system deposits that can take up gigabytes of usable space. To clean Xiaomi as efficiently as possible, you need to use a comprehensive approach that includes manual folder checks, hidden engineering menus and competent cache management. In this article, we will discuss proven methods that will help return your device to its original speed without losing important data.
Before we start taking drastic measures, it's important to understand the structure of files in the system. Android's file system is designed so that applications create many temporary copies to quickly download content, but rarely delete them themselves. The accumulation of such data leads to fragmentation and slow reading from the drive. Regular maintenance of the gadget is the key to its long and stable service.
Use of the built-in Security application
The first and most obvious tool is the standard Security app, which is pre-installed on all Xiaomi smartphones. It is designed specifically for working with the MIUI file system and allows you to safely delete most of the temporary data. Launch the application and select Cleanup, after which the system will conduct an automatic scan. Memory analysis will show the amount of garbage that can be removed at a single click, including browser cache and temporary update files.
But automatic mode is often too conservative. For a deeper cleaning, go to the Memory section inside the app. Here you'll see a detailed breakdown by file category. Notice the Big Files section, which often includes forgotten videos from messengers or old backups that you don't need. Manually checking this category frees up a lot of space that the standard algorithm might have thought was important.
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Before removing files from the Big Files category, always check their contents so that you don’t accidentally erase important documents or personal photos that the system has marked as voluminous.
Don't forget to use Deep Clean in the app's settings, which scans the device for duplicate photos, similar photos, and unused photos. APK-The duplicates can take up to 10-15% And removing them is the easiest way to speed up the device, and using these tools in conjunction regularly is better than a one-off promotion.
Manual cleaning through Explorer and hidden folders
Staff tools don't always see the contents of social media folders and instant messengers like Telegram, WhatsApp, or Viber. These apps create huge archives of media files that are often not needed after viewing. Open Explorer and go to the root directory. You need to find folders with the names of the relevant applications. Inside them, look for Media or Images directories, where all the downloaded content is stored.
☑️ Checking garbage folders
Particular attention should be paid to the folder Android/data. It stores the cache of games and heavy apps, and the cache of games can weigh a few gigabytes, especially if you've ever played a high-graphics game, and if the game is deleted but the folder is still there, you can erase it. Also check the Download folder, where browsers and files from the Internet are saved by default, often accumulating installation files of programs that are already installed, and old ones. PDF-document.
For advanced users, you can connect your smartphone to your computer in file transfer mode, which allows you to visually analyze the structure of folders on the big screen, you can quickly find and delete folders with the names of remote applications or strange archives that may have entered the system by accident, a method that is especially effective when finding forgotten WhatsApp backups, which can take up tens of gigabytes.
Cleaning the application cache and memory management
Each app you install has its own cache, which speeds it up, but over time inflates to inadequate size. To clean the cache selectively, go to Settings → Apps → All Apps. From the list, select "heavy" programs such as social networks, browsers or maps. Inside the app menu, find Memory and click Clear Cache. Importantly, don't confuse this with the "Clean All" button, which will reset the app to factory settings and require reauthorization.
Google Play Services is a major resource consuming service, which can grow to several gigabytes, causing the case to heat up and quickly discharge the battery. Periodic cleaning of the cache of this system component helps normalize the work of background processes. It is also worth checking the Gallery app, which often stores thumbnails of deleted photos in hidden cache, while continuing to occupy space.
What if the cache is cleared, but the place is not vacated?
RAM management also plays a role. In the developer settings (which you need to activate by clicking on the build number seven times in the About Phone section), you can limit the number of background processes. However, for the average user, it is better to use an built-in memory retention mechanism: press the Menu button (three strips or a swipe from the bottom) and click on the broom icon to close all background tasks, this will give the system a fresh start and free up resources for current tasks.
Removal of system debris and advertising files
MIUI’s shell is known for its love of advertising and telemetry collection, which also leads to the accumulation of junk files. One effective way to clean Xiaomi of this “big stuff” is to turn off ads in the system. Go to Settings → Passwords and security → Access to personal data and disable access for system applications such as msa (MIUI System Ads), getapps and miui daemon. This will stop the loading of advertising modules that take up space in the cache.
It's also worth checking the folder. MIUI/debug_log. This is where the system resets error reports and work logs, and if you're not a developer and you don't send error reports to Xiaomi, you can clean that folder periodically, and log files can weigh hundreds of megabytes, and they don't do any good for the average user. Removal is safe and does not affect the stability of the work.
Another source of garbage is the update folder. After successfully installing a new firmware version, the installation file often stays in memory. Check the root of the internal memory for files with the.zip extension or folders with names like update. If the system is stable, these files are no longer needed. Deleting update residues is a safe procedure that can return you from 2 to 5 GB of free space instantly.
Comparison of cleaning methods: efficiency and risks
When choosing a cleaning method, it is important to understand the balance between security and depth of penetration. Third-party cleaning applications often promise miracles, but may contain advertising or themselves be a source of garbage. Below is a table comparing the main cleaning methods so that you can choose the best one for your situation.
| Cleaning method | Efficiency | Security | Difficulty |
|---|---|---|---|
| Security annex | Medium | Tall. | Low. |
| Hand-cleaning folders | Tall. | Medium | Medium |
| Third-party cliners | Tall. | Low. | Low. |
| Reset to factory | Maximum | Tall (with backup) | Tall. |
As you can see from the table, manual cleaning gives the best result with minimal risks if you act carefully. Third-party applications such as SD Maid or Files by Google can be useful, but require careful setting of access rights. Root rights give full control, but obtaining them voids the warranty and can lead to system failure if misused, so in the table they are not highlighted as the recommended method for the mass user.
The most radical but effective method is a complete reset, and if your smartphone is slow even after all the cleaning, there may be registry errors or file conflicts in the system, in which case Hard Reset is the best solution, and remember to back up all the important data to the cloud or to your computer before doing so.
Prevention and optimization of the system
To avoid having to wonder how to clean Xiaomi, it’s worth introducing simple usage habits. Regularly remove unused apps. Even if you don’t use them, they can update in the background and create temporary files. Disable auto-update apps over the mobile network, leaving this feature only for Wi-Fi to avoid accumulating partial installation files.
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Regularly restarting your smartphone (at least once a week) helps the system automatically clear RAM and complete suspended background processes, which prolongs the battery life.
Use cloud services to store photos and videos. Set up automatic sync with Google Photos or Xiaomi cloud allows you to store originals on the Internet, leaving only thumbnails on the device. This frees up gigabytes of space. Also keep track of the size of the messenger database: in Telegram settings, for example, you can set automatic cleaning of the media cache in 3 days or a week.
Finally, avoid installing accelerators and coolers from unreliable sources. Often, these programs are just a shell for displaying ads and slow down the system themselves. Xiaomi’s native optimization tools are enough to maintain order if used in conjunction with manually checking large files. Careful attitude to the file system will prolong the life of your device for years.
⚠️ Note: When manually cleaning folders Android/data Never delete the app names themselves if you plan to use them. Only delete the contents inside (cache files), otherwise the app may lose its data or stop running.
⚠️ Warning: Do not use the "RAM Acceleration" features in third-party applications that forcefully shut down all processes. Android manages memory itself, and constant restarts of applications only increase battery consumption and processor load.