Modern Xiaomi smartphones, which are powered by Android and MIUI, have powerful memory management tools, but over time, any gadget starts to accumulate unnecessary data. It’s a natural process that slows down the device, causes delays when starting applications and can lead to sudden system freezes. Users often notice that the available space for storing photos or installing new programs is rapidly decreasing, although they did not download anything new.
The main reason for this is the work of background processes and caching mechanisms, which are designed to speed up access to frequently used data, but in the long run create a huge amount of digital garbage. To clean up the garbage in the phone on Android Xiaomi, you do not need to be an expert in programming or immediately carry the device to the service center. In most cases, the problem can be solved by using built-in system tools or proven third-party utilities.
In this guide, we will take a look at all the steps of cleaning, from simple actions through the standard settings menu to deep analysis of the file system. You will learn to distinguish between system files that you can not touch and the same storage debris that you can safely remove. Proper cleaning will not only free up gigabytes of space, but also prolong the battery life, since the system does not have to constantly index excess data.
Use of the built-in "Security" application
The easiest and safest way to start cleaning is to use the pre-installed Security app, which is an integral part of the MIUI shell. Xiaomi developers have implemented a powerful antivirus and cleaner engine that automatically scans the device for temporary files, remnants of deleted applications and advertising debris. To start the process, just find the icon with the shield on the desktop and click the “Clean up” button.
Once the scan is complete, the system will suggest removing the files found, which can range from a few megabytes to several gigabytes. It is important to understand that cleaning the cache does not delete your personal data, such as messenger correspondence or saved passwords, it only erases temporary files that the applications created to quickly load pictures or pages. However, if you haven’t cleaned it for a long time, the first launch can take several minutes.
The app also has a Deep Clean feature that analyzes large files, rarely used apps and duplicate photos, which is especially useful when standard cleaning no longer produces a meaningful result. The algorithm is aggressive enough that you should carefully review the list of candidates for deletion before mass deletion so that you do not accidentally erase an important document.
⚠️ Note: When using the Deep Clean feature, carefully check the Large Files section. The system may flag downloaded video files or archives of documents you plan to use in the future for removal.
Regular use of the built-in tool helps keep the system in good shape. MIUI even allows you to set up automatic cleaning when the amount of garbage reaches a certain threshold, which saves the user from having to constantly monitor the state of memory manually.
Manual cleaning of application cache and user data
Despite the effectiveness of automated tools, manual control sometimes gives a much better result, especially when it comes to “heavy” applications such as Telegram, WhatsApp or social networks. These programs tend to accumulate a huge amount of media files, which are formally cache, but can take up to 80% of the device’s free memory. To get to this data, you need to go to the Settings menu → Apps → All applications.
In the list of installed programs, find the most voluminous (usually sorted by space size) and open their properties. Here you will see two important buttons: Clear cache and Clear everything (or Wipe everything). Using the Clear cache button is safe and only resets temporary files, while Clear Everything will return the application to state immediately after installation by deleting your logins, settings and correspondence.
In Telegram, for example, you can clean the cache right inside the settings of the application itself by setting an automatic timer for deleting media files (for example, after 3 days or a week), which is much more convenient than every time you go into the system settings of Android. For YouTube and browsers, cleaning the cache is also critical, since they store previews of videos and copies of pages visited, which over time grow to gigabytes.
☑️ Checklist for manual cleaning
Remember that once the cache is cleared, applications can load a little slower on their first run, because they have to re-download the necessary resources from the network, which is normal behavior that should not be a concern, but you will immediately notice an increase in free space, which is especially true for models with a small amount of internal memory.
Storage analysis and removal of large files
Often users don’t even know where gigabytes of lost space are hiding. Xiaomi’s built-in storage analyzer allows you to visualize memory and understand which types of files take up the most space. Going to Settings → Memory, you’ll see a color diagram where each sector is responsible for a specific type of data: applications, images, videos, system files, or more.
Click on the Other or Files sector to see a list of the most voluminous objects. It often reveals forgotten downloads, old WhatsApp backups that no one has seen in years, or offline navigator maps. Deleting such files is the fastest way to free up space on Android without risking damage to the system.
For more detailed analysis, you can use a file manager with memory card building, such as Xiaomi’s built-in Explorer or third-party solutions like Total Commander, which allow you to sort files not only by date but also by size, which helps you instantly find “hidden memory eaters.” 4K videos shot a month ago can take up more space than all installed applications combined.
⚠️ Be very careful when removing files from system folders whose names you do not know. Deleting libraries or configuration files can lead to malfunctioning applications or errors in the interface.
It’s also worth checking the DCIM folder where your photos and videos are stored. Often there are bad shots, screenshots or duplicates that can be ruthlessly deleted. Using cloud services to store media archives will relieve the internal memory of the phone, leaving only current pictures on the device.
Working with the “Other” folder and hidden garbage
One of the most puzzling categories for Xiaomi users is the “Other” section in storage, which includes files it cannot automatically identify, as well as data left by remote applications, streaming cache and error logs, and manually cleaning this section requires care, as blindly deleting all content can be risky.
To clean this section safely, try the standard Security cleanup first, because it can recognize some of that data. If that doesn't work, use the file manager and go to the root directory of internal memory. Look for folders with names of remote apps or services you don't use anymore. For example, leftovers from Instagram or Facebook can lie dead for months.
The separate debris layer is.thumbnails. This is a hidden folder in the DCIM directory that stores thumbnails of your gallery photos. Over time, it can grow to several gigabytes. It can be safely removed — the system will create it again when you open the gallery, but it will weigh minimally. To access hidden folders, turn on the display of hidden files in the Explorer settings.
Another source of hidden junk is offline content, music on Spotify, movies on Netflix, or maps on Yandex.Navigator can take up tens of gigabytes. Check the settings of these apps and delete downloaded content if you no longer need it offline. This often gives you an instant and significant boost to free memory.
Removal of duplicates and unused applications
When you use your smartphone, you inevitably accumulate duplicate photos taken when you hit the trigger button, or copies of documents that you downloaded several times. The MIUI shell has a built-in tool to find those files. It's in the Security app or the Explorer in the tool section. The algorithm compares checksums of files and suggests you delete copies, leaving one original.
In addition to duplicates, you should do an installed app audit. Go to Settings → Apps and sort the list by frequency of use. You will be surprised how many programs you haven't opened in the last six months. Games you no longer play or stores you've stopped using take up space and can work in the background, using resources.
Removing system applications that are preinstalled by the manufacturer and are not removed in the standard way (called bloatware), will require more sophisticated methods, such as using ADB (Android Debug Bridge) from the computer. However, for the average user, it is enough to disable such applications in the settings, which will hide them from the menu and prevent them from running.
Remember to check the Recycle Bin folder in the gallery and in the file manager. Deleted files often don't disappear completely, but move there and store for 30 days, continuing to take up space. Cleaning the Recycle Bin is the final touch that will finally free up the occupied volume.
Comparison of cleaning methods: built-in tools against third-party
The choice of cleaning method depends on your goals and level of technical training. Xiaomi's built-in tools are as safe and integrated as possible, but may be less effective against specific debris. Third-party applications such as SD Maid or Files by Google offer deeper analysis, but require careful use.
Below is a comparison table of basic cleaning techniques that will help you choose the best option for your situation.
| Cleaning method | Security | Efficiency | Difficulty |
|---|---|---|---|
| Security annex | Tall. | Medium | Low. |
| Manual cache cleaning | Tall. | Tall. | Medium |
| Third-party cliners | Medium | Tall. | Low. |
| ADB/Root rights | Low (risk) | Maximum | Tall. |
Using third-party accelerators or coolers is often not only useless, but harmful: They consume resources, show ads and create visibility, while the built-in Android mechanism itself perfectly manages RAM. The best approach is to combine the built-in cleaning once a week with manual revision of large files once a month.
Prevention and optimization of the system
To keep the question of how to clean your phone garbage from getting up too often, it is important to implement simple smartphone habits: First, set up automatic cache cleaning in your browser and messengers; second, check your downloads regularly and delete the unnecessary ones; and third, do not store files on your device that are already stored in the cloud or on your computer.
RAM also requires attention, although Android can control it itself. If the phone starts to slow down, a simple reboot of the device (switching off and on) often works wonders, closing down the freeze processes and resetting errors in the system. Do this at least once every few days.
Keep an eye out for MIUI updates. In newer firmware versions, developers often improve memory algorithms and fix resource leaks that may have caused garbage accumulation in previous versions. The current system is more stable and more efficient at disposing of free space.