How to Clean Your Phone From Unnecessary Xiaomi Files: A Complete Guide

Xiaomi smartphones are famous for their excellent price-performance ratio, but even powerful processors can’t save when internal memory is full. Many users are faced with a situation when the device starts to work slower, applications fly out, and notifications of space shortages appear at the most inopportune moment, this is due to the accumulation of system debris, duplicate photos and bloated cache of applications.

Cleaning a gadget is not just removing a couple of old songs, but a comprehensive approach to maintaining the operating system MIUI or HyperOS. In this article, we will discuss proven methods of freeing up space that will help restore the device to its former agility, you will learn which folders can be deleted without fear of damaging the system, and how to properly use the built-in cleaning tools.

It's important to understand that regular maintenance extends the life of the drive. If Flash memory is clogged by 95-99%, the speed of writing and reading data drops critically, so the question of how to clean the phone of unnecessary files is relevant not only for older models, but also for new flagships with a large amount of internal storage.

Use of the built-in "Security" application

The easiest and safest way to start cleaning is to use the standard shell toolkit, which preinstalled a system application called Security in each Xiaomi smartphone that has access to deep layers of the file system, which automatically scans the device for temporary files, residual debris after deleting programs and large unused files.

Launch the app and press the Clean up button. The system will analyze and suggest that you delete files that do not affect the OS. However, do not blindly trust the automation. Often the algorithm will mark as "junk" the cache of offline navigation cards or temporary messenger files that you may want to save.

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Periodically check the “Big Files” tab in the Security app – there are often forgotten videos that take up gigabytes of space.

Special attention should be paid to the section "Deep cleaning", where the algorithm suggests removing rarely used applications and duplicates. Be careful: removing system components through this interface can lead to unstable operation. Always check the list before confirming an action.

⚠️ Warning: Built-in cleaner may suggest removing files from folder DCIM/.thumbnails. These are sketches of your gallery. Deleting them is safe, but the next time you open the gallery, the system will recreate them, which will temporarily load the processor.

Manual cleaning through the Explorer and folder analysis

Automatic tools don't always see what's obvious to humans. Manually checking the file system through standard Explorer allows you to find and delete really redundant data. Most often, the place is occupied by messenger folders, which by default store all received media files.

Go to the root directory of internal memory. You should be interested in the folders Android/data (here is the cache of games and applications), DCIM (photo and video), Download (downloads from the browser) and MIUI. Inside the MIUI folder, the backup directory is often inflated, where old backups are stored, if you have not disabled this feature.

Tencent or com.whatsapp should be a special focus if you're actively using these services, which store hundreds of megabytes of watched but unimportant videos and GIFs, and you can remove the contents of your Media or Video folders from your messenger directories if you don't plan to save your correspondence history.

Don’t try to delete files from system folders whose names don’t tell you anything. For example, deleting the contents of the obb folder will cause heavy games to stop running and require re-downloading resources. The folder.Trash in the gallery stores deleted photos for 30 days – be sure to clean it up for final freeing up of space.

Cleaning the cache and application data

Social networks and instant messengers tend to grow to giant sizes. Telegram, TikTok, Instagram and YouTube can take up 5-10 GB of memory, even if you did not save files consciously there. This cache is temporary data that speeds up the work of applications, but often becomes ballast.

To clear the cache of a particular application, go to Settings → Apps → All apps. Select the program you want (like YouTube) and click Memory. Here you will see two buttons: Clear cache and Clear all data. The first one is secure — you just log in to some services or reset the temporary settings. The second one will return the application to the “just out of the store” state, removing your logins and saves.

For instant messengers, it's better to use built-in cleaning functions. On Telegram, it's Settings → Data and Memory → Memory Use → Clear cache. Here you can set up autodelete files so that the cache doesn't grow in the future. This is much more effective than deleting through Android settings.

Remember browsers. Chrome, UC Browser, or the built-in Mi browser often store gigabytes of cache. Clearing the history and cache in your browser settings can instantly free up several hundred megabytes. This is especially true if you often watch videos through web versions of sites.

Removal of duplicates and large files

Over the years, dozens of copies of the same photos accumulate in memory, due to synchronization failures, re-downloading from messengers or editing errors, and finding and removing duplicates is one of the most effective ways to quickly get free space.

Use the gallery's Doubley feature or third-party analytics apps like Files by Google. They scan the storage by checksum files, finding identical copies, even if they're called differently. Delete them boldly, leaving only the originals at maximum resolution.

⚠️ Warning: Before mass deletion of duplicates, make sure you don't delete the originals by leaving only compressed copies from messengers. Always check the file resolution before deleting.

It's also worth reviewing video files. 4K or FullHD videos can take up 300-500 MB each. Often we shoot short clips of "memory" that we never watch later, transfer them to a computer or cloud storage, and delete them from the phone.

Removing Unused Applications and Games

Apps that you haven't used in the last three months are likely to be unused in the future, not only taking up space, but can also consume resources in the background, reducing your autonomy, and regular revision of installed software is a must.

Go to the storage settings and sort the apps by size. You'll be surprised to find that a game takes up 4GB even though you haven't run it since winter. Removing those heavyweights gives you instant results. Remember to also check the list of all the apps and remove the system debris that carriers or electronics stores often pre-installe (called bloatware).

If an app is rarely needed but is pathetic to remove, consider using its web version or Lite version. For example, Facebook Lite or Telegram X take up significantly less space and run faster on older devices. This is a great trade-off between functionality and memory savings.

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The 30 Day Rule: If you haven't opened an app for a month, uninstall it. If you need it, you can always download it again from Google Play.

Use of cloud services and PC

The most radical and effective way to free up space is to transfer media files to external storage, services like Google Photos, Yandex.Disk or Mi Cloud allow you to set up automatic sync, and once you upload photos and videos to the cloud, you can safely delete them from the device using the “Free Space” feature.

The alternative is to connect your smartphone to your computer regularly, and once a month, copy your DCIM and Picture folders to your PC hard drive, which not only frees up gigabytes on your phone, but also creates a physical backup of your data that is more reliable than any cloud.

For users who do not want to depend on the Internet, there are OTG-And if you plug this into a Type-C connector, you can quickly recycle your photo and video archives without using a computer, and this is especially useful when you're away from a PC and your phone's memory is already full.

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