How to Clean Memory on Xiaomi Smartphone: The Complete Guide

The situation when the beloved Xiaomi suddenly starts to work slowly, and notifications of space shortages appear at the most inopportune moment, is familiar to every Android owner. This is because the internal memory of the device gradually fills up not only with your photos and applications, but also with hidden system files, messenger cache and residual data from remote programs. When free space falls below the critical mark of 10-15%, the MIUI or HyperOS operating system begins to have difficulty creating temporary files necessary for stable operation of background processes.

Many users mistakenly believe that simply removing a few apps will solve the problem, but system debris continues to accumulate even after cleaning. Modern smartphones capture photos and videos in high resolution 4K and 8K, which takes up gigabytes of space in just a few days of active shooting. In addition, instant messengers like Telegram or WhatsApp store all the media files they viewed locally, turning folders of correspondence into huge archives that lie dead for years.

In this article, we will look at proven methods of freeing up space that will help return your gadget to its previous speed without losing important data. We will look at both built-in system tools and advanced cleaning methods available through the developer menu and file managers. Proper storage maintenance is the key to longevity of your device and its performance in 2026.

Storage analysis: search for the largest files

Before you start taking drastic measures, you need to clearly understand what exactly is taking up space on your device. The standard way to check is to go to the Settings menu → Memory, where the system will provide a detailed data distribution diagram. Here you will see a breakdown by category: applications, images, video, audio and system files. Often it turns out that the lion's share of memory is occupied not by installed programs at all, but by their cache or forgotten videos in the gallery.

Notice the Apps section, which often hides surprises. Social media and instant messengers have the ability to grow to incredible sizes, accumulating correspondence history and viewed stories. If you see an application that takes several gigabytes, you should go to its settings and check the ability to clean data inside the program itself. This is a safer way than completely cleaning data through Android settings, because it allows you to save logins and passwords.

⚠️ Note: Do not delete files from folders with system service names (e.g. Android, MIUI, System, if you are not 100% sure of their contents, deleting critical system files can lead to unstable interface operation or a cyclical device reboot.

For a deeper analysis, you can use third-party utilities that visualize the file system as a memory card, which show "heavy" files that may have been lost in the depths of download directories, and after doing the analysis, you can make an informed decision about what to delete in the first place, without relying on guesswork.

Use of the built-in "Security" application

The MIUI and HyperOS shells have a powerful system application called Security, which includes a garbage cleanup feature, launch it and press the Cleanup button, and then scan for temporary files, APK install residues and browser cache, the fastest way to free up a few hundred megabytes in a couple of seconds without risking the integrity of important data.

But automatic cleaning isn't always deep enough. Security often hides additional tools like Deep Cleaning in the app menu. It can find duplicate photos, similar images, and rarely used applications. The system's algorithms analyze file metadata and suggest that you delete copies that you may have created accidentally during editing or forwarding.

• 🗑️ Cache Clearing: Deletes temporary files, speeding up application launches, but does not affect your personal data.
• 📸 Duplicate search: Finds the same photos and videos, allowing you to delete extra copies.
• 📦 Packet Removal: Offers to Clear Installation Files APK, which are left after the update of the programs.

It is important to understand the difference between cache cleaning and data cleaning. If you choose Data Cleanup for an application, it will return to state immediately after installation, losing all settings, logins and saved progress. Use this feature only in extreme cases or for applications that you are ready to configure again. Regular use of the built-in cleaner will help maintain order in the file system.

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Start your built-in garbage cleanup at least once a week to prevent a large amount of temporary files from accumulating, which can slow down the system.

Working with garbage in messengers and social networks

Messengers are the main “eaters” of free memory on modern smartphones. Telegram, WhatsApp, Viber and other applications by default store all received photos, videos and voice messages in the internal memory of the device. Over time, folders with media files of these applications can grow to 10-20 GB or more, occupying precious space that could be used for the system.

Fortunately, most modern instant messengers have built-in memory management tools. On Telegram, for example, you can go to Settings → Data and Memory → Memory Use and set up automatic cache cleansing. You can set a timer, for example, "3 days" or "1 week", after which the old media files will be automatically deleted from the app's cache, while remaining available in the chat cloud.

For WhatsApp, the way to free up space is through managing the storage within the app itself. Go to Settings → Data and Storage → Storage Management. Here you will see a list of chats sorted by space you occupy. You can selectively remove large video files from specific dialogues without deleting the correspondence itself. This is especially useful for group chats where heavy files are constantly shared.

Also, remember to check your media autoload settings. Turn off automatic downloads of photos and videos over your mobile network, and in the Wi-Fi section, limit downloads to important contacts. This will not only save memory, but also save your traffic. Regularly auditing the content of messengers is the key to keeping your smartphone in order.

Gallery Cleanup and Cloud Storage

Photos and videos are the most personal and important data that also take up the most space. Xiaomi's modern smartphone cameras take high-resolution shots, and the 4K or 8K video recording feature takes gigabytes of memory in minutes. Before deleting, it's important to audit the gallery: often there are failed shots, screenshots of documents that are no longer needed, and long videos taken by mistake.

The ideal solution for Xiaomi smartphone owners is to integrate with cloud services. You can use Google Photos, which offers high-quality compression, or Xiaomi Cloud, set up automatic synchronization of the gallery with the cloud, and then use the Free Space feature, which will remove from the device those photos and videos that have already been successfully uploaded to the cloud storage, leaving them available for viewing over the Internet.

If you don’t want to depend on the internet, consider buying a microSD card (if your model supports) or an external one. USB-Transferring archived photos and videos to an external medium is the most reliable way to keep memory fast. Also worth noting is the Recycle Bin folder in the gallery, which often stores deleted files for another 30 days, taking up space.

Deletion of applications and work with duplicates

Often we install "one-time" applications and forget about them, or duplicate programs with the same functionality appear on the system. Do an audit of the installed software: if you haven't opened an application in the past 3 months, you probably don't need it. New versions of HyperOS have a feature that highlights long-unused applications and suggests removing them.

Special attention should be paid to games. Modern mobile games can weigh 5-10 GB each. If you pass a game or abandon it, ruthlessly delete it. Also check for "light" versions of applications (Lite) if you have full versions installed. For example, having Facebook and Facebook Lite at the same time makes no sense if you use only one of them.

Android sometimes allows you to install updates on top of older versions, which can cause the app to inflate. In such cases, a complete reinstallation helps: remove the app and download it again from Google Play or GetApps. This ensures that you get a fresh, optimized version without the accumulated fat layer of old libraries.

⚠️ Warning: Before removing system applications or components MIUI/HyperOS Make sure that they are not critical to the phone, and removing system components can cause interface errors or loss of functionality (such as calls or Wi-Fi).

For advanced users, there is a possibility of using ADB-commands to remove system debris that cannot be removed in the usual way, but it requires a computer connection and knowing the exact names of the packets. For most users, it is safer to limit yourself to standard removal through settings.

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Regularly auditing installed applications and removing unused programs is the most effective way to maintain free memory space in the long term.

Resetting to factory settings as a radical method

If none of these methods worked and the memory is filled with nothing again, there may be deep errors or fragmentation in the file system, in which case the most effective solution is a complete factory reset, which will put the smartphone back out of the box by removing all the data, settings and applications.

Before you reset, it's critical to make a full backup of all your important data. Use the built-in "Mi Mobile" app or cloud services to save contacts, messages, photos and app lists. Without a backup, you risk losing all your information irretrievably. Make sure your battery is at least 50% so that your phone doesn't turn off during the reset.

Settings → About the phone → Reset settings → Erase all data

Once you reboot, you'll get a clean system with maximum free memory. Apps should only be reinstalled for the ones you really need, avoiding restoring a full backup of all programs at once, as this can bring back the accumulated garbage. This method often works wonders with older devices, significantly extending their lives.

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