How to effectively clean Xiaomi phone from garbage and viruses

Modern Xiaomi smartphones, which are based on the shells MIUI or HyperOS, have a powerful iron, but even they eventually start to work slower. The accumulation of temporary files, residual data from remote applications and bloated cache are the main enemies of the speed of your gadget. Users often notice that after a year of active use, the device begins to respond longer to commands, and free space in memory disappears for no apparent reason.

There are many ways to get the machine back to its old days, from standard system tools to radical methods like a complete reset. Regular cleaning not only frees up valuable space for photos and videos, but also prolongs battery life, since the processor does not have to waste resources on processing system debris. In this article, we will discuss all proven optimization methods.

It is important to understand that cleaning can mean something else: deleting redundant files, cleaning app cache or returning to factory settings. Each method has its own characteristics and risks, so before starting procedures, you need to clearly determine what level of intervention your device needs right now.

Use of the built-in Security application

The first thing a Xiaomi owner needs to do is use a regular toolkit that is already preinstalled in the system. The Security app (or Security) is a system control center that collects all the necessary functions to maintain the gadget, it automatically scans the device for threats and suggests that you delete unnecessary files.

To start the procedure, open the application and select Cleanup. The system will analyze and show the amount of garbage that can be safely removed. This usually includes the remnants of installation packages, temporary browser files and social media cache. Press the cleanup button to make room.

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Turn on the Auto Clean function in the Security settings so that the phone will remove debris on its own when a certain memory filling threshold is reached.

Don't ignore the Deep Clean section, which is often available inside the same menu, where you can find large files, duplicate photos, and rarely used apps, and a careful analysis of this list reveals hidden memory reserves that you might not have known about.

⚠️ Note: When using the deep cleaning function, carefully check the list of files. The system algorithm can mark important documents or downloaded files as garbage if they are in standard download folders.

Regular use of the built-in optimizer helps keep the system in good shape, but it is worth remembering that this is a surface cleaning tool, and it does not always remove the residues of remote programs.

Manual cleaning of cache and application data

Often, the bulk of memory is not the system files, but the data of popular apps such as Telegram, Instagram, TikTok and YouTube, which aggressively cache content to speed up its loading when re-viewed, but over time the cache can reach tens of gigabytes.

To clear a particular application, go to Settings → Apps → All apps. Find the program you want (like messenger) and click on it. Inside, you’ll see the Clean button, next to which is the action selection menu: Clear cache or Clear everything.

• 🗑️ Clearing cache: Deletes temporary files without affecting your logins, passwords and correspondence.
• 💾 Cleanup: Resets the app completely to the “just established” state, you will lose your correspondence history (if there is no backup) and authorization.
• 📂 File management: some applications have built-in cleaning, for example, in Telegram this is the Settings item → Data and memory → Use of memory.

Particular attention should be paid to messengers, since they store media files in shared folders of the system. MIUI file-file MIUI/VideoEditor or DCIM/.thumbnails, Where the thumbnails of the gallery are stored, and clearing them through the file manager can free up a lot of space.

There is a myth that frequent cache cleaning extends the life of the phone. In fact, once cleaned, applications will have to re-download data, which will increase traffic and CPU load, and only do this when the memory is really critically filled.

Storage analysis and removal of large files

Often users can't figure out where exactly the space is missing, and in these cases, the built-in storage analyzer comes to the rescue, and it visualizes memory by showing which categories of files occupy the most space on your Xiaomi.

Go to Settings → Memory (or through the Explorer → Analysis app) and build a diagram showing the distribution between apps, images, videos and system files. Visualization helps you quickly find heavyweights you may have forgotten about.

The Android/obb folder is a special feature, and it stores the hard game cache files, and if you delete the game but the folder with its name is still there, you can delete it manually, but if the game is installed, deleting the files from obb will make it inoperable.

Use file size sorting in the file manager, and it often turns out that half of the memory is occupied by forgotten 4K videos or a few forgotten archives downloaded six months ago.

Using Developer Mode for Deep Cleaning

For advanced users who want to gain maximum control over the system, there is a developer mode. Activating this mode allows accessing to more subtle cleaning and process control settings that are hidden from the average user.

To activate the mode, go to Settings → About Phone and click 7 times on the MIUI Version (or OS Version). After the message “You became a developer” appears, a new section Additional or Advanced Settings will appear in the settings menu.

• 🛠️ Debugging by USB: Allows you to connect your phone to your PC for deep cleaning ADB-team.
• 🧹 Do not save activities: An experimental feature that unloads applications from memory immediately after release, freeing RAM.
• 📉 Background Process Limit: Limits the number of applications running simultaneously in the background.

One of the most effective methods for experienced is to use ADB (Android Debug Bridge) from a computer, and by connecting the phone to a PC, you can execute a command to clear the cache of all applications at once, including system ones, which is impossible to do through the phone interface.

adb shell pm trim-caches 999999999

This command compels the cache of all applications to the lowest possible value. Be careful: using ADB requires installing drivers and understanding the command line. An error can lead to unstable system operation.

⚠️ Warning: Do not turn off features in the Developer Menu unless you are sure of their purpose, such as turning off hardware acceleration. GPU alteration DPI can make the interface unreadable or cause the device to overheat.

Radical method: Full reset to factory settings

If software cleaning methods fail and the phone continues to slow down, the final argument is a complete reset, which returns the device to the “out of the box” state, removing absolutely all data, settings and applications.

Before starting the procedure, it is critical to create a backup. Use the built-in Settings → About Phone → Backup Recovery or Google One / Xiaomi Cloud. Without a backup, you will lose contacts, photos and correspondence irrevocably.

The reset process itself is done through the Settings menu → Advanced Settings → Reset → Erase all data. The system will request an unlock password and a password from the Mi Account to confirm the identity of the owner (anti-theft protection). Once confirmed, the phone will restart and begin the cleanup process, which can take 10-20 minutes.

There's also a way to reset through Recovery Mode if the system isn't booting, and to do that, you turn off your phone and press the Volume Up + Power button combination. From the recovery menu, select Wipe Data → Wipe All Data. This method is useful if the phone is hanging on the logo.

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A complete reset is not a panacea for hardware problems. If after resetting and clean installation of applications, the phone warms or discharges in 2 hours, the problem may be the wear of the battery or processor.

After the reset, take your time to install all the applications at once. Watch the clean system work. If it works fast, it means the problem was a software conflict or garbage. Start installing programs gradually to identify the culprit if the problem happens again.

Prevention and operation rules of MIUI

To avoid asking yourself how to clean your phone every two weeks, you should stick to the simple rules of using the MIUI shell or HyperOS. The system itself is quite aggressive to the background processes, but it can be helped to work more efficiently.

First, avoid installing accelerators and antiviruses from third-party sources. Xiaomi’s built-in tools are quite enough. Third-party cleaners are often a source of advertising and unnecessary battery load, creating the appearance of useful activity.

• 🔄 Regular updates: Update your system and apps through official stores (GetApps, Play Market) and updates often contain memory leak fixes.
• 🚫 Autostart Control: In the Security app, disable autorun for applications you rarely use.
• 📉 Disabling Advertising: Turn Off Recommendation Services (MSA), to reduce background activity and traffic.

It is also recommended to reboot the device once a month. Full reboot (switch off and on) clears the RAM from “hanging” processes and resets temporary driver errors, which positively affects the speed of work.

⚠️ Warning: Do not use app freeze features or aggressive Task Killers. In modern versions of Android, this leads to a constant restart of services, which drains the battery faster and loads the processor.

Digital hygiene is the best way to keep things running: remove unused games, clean up the Downloads folder, and don’t store thousands of unnecessary screenshots. Free space (at least 10-15% of the total) is needed for the system to work correctly.