Modern Xiaomi and Redmi smartphones have impressive specs, but even they are slowing down over time due to overflowing internal storage. Users often notice that the interface begins to slow down and apps load longer than usual when the free disk space is close to zero. It is a natural process of accumulation of digital garbage that requires periodic intervention.
The MIUI operating system that powers the devices is actively cacheing data for fast operation, but this mechanism sometimes gets out of control. Remnants of remote programs, temporary messenger files and system logs that take up gigabytes of space accumulate in memory. If you ignore this problem, the phone can completely stop responding to commands or cyclically reboot.
In this article, we will look at proven ways to free up space that will help return your gadget to its previous speed. We will look at both regular cleaning tools and more advanced methods for advanced users. Proper file system maintenance is the key to the long life of your device.
Use of the built-in "Security" application
The easiest and safest way to start cleaning is to use a standard tool that is already preinstalled on the system. Xiaomi’s Security app can find unnecessary files and cache without affecting important system components. Launch it from the home screen and select the Cleanup option.
The system will automatically scan the device and prompt you to delete temporary files, remnants of APK installers and ads, a process that takes only a few seconds and does not require a deep knowledge of the Android architecture.
☑️ Checking before cleaning
⚠️ Note: When using Deep Clean, carefully check which files are tagged for deletion. Sometimes screenshots or documents you have recently saved are included in the list.
For more details, go to the app menu and select Garbage Cleanup, and here you will see a breakdown by file type: app cache, installer packages, advertising files. Regular cleaning at least once a week will prevent critical memory from filling up and help the system run more stable.
Memory analysis through system settings
If a standard cleaning didn't work, you need to do a manual audit of the storage, go to Settings and select About Phone, then click on Warehouse, and the system will build a graphic diagram showing which categories occupy the most space.
Most often, the lion's share of space is occupied by applications and their data, as well as multimedia, and if you click on a specific category, you will see a list of programs, sorted by the amount of space occupied, which allows you to quickly identify the "heavyweights" that you may not even know existed.
The other section is a category that often hides OBB data from games, offline maps of navigators and downloaded videos from streaming services, and some users are surprised to find dozens of gigabytes of data left behind by apps.
Deleting the application data is a radical but effective method. If you select a program and click Clear Data, it will return to state immediately after installation. All your logins, settings and progress within the application will be erased, so use this method with caution.
Cleaning the cache of messengers and social networks
Messengers like Telegram, Viber and WhatsApp are the main devours of free memory, and they store every photo, video and voice message they see into a cache that grows to giant sizes over time, and standard cleaning often doesn't see those files as garbage.
In Telegram, you need to go to Settings → Data and Memory → Memory Use. Here you can click Clear Cache and, most importantly, set a cache size limit or autodelete media files, which will allow the messenger to automatically delete old files, freeing up space on the fly.
WhatsApp is similar, but it's managed through the built-in file manager or chat settings. Go to Settings → Data and Storage → Storage Management. The system will show the chats that take up the most space and allow you to remove heavy attachments selectively or en masse.
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Install automatic cache cleaning every 3 days in Telegram settings, which will save you from having to do it manually and save gigabytes of space.
| Annex | Where to look for a cleanup | What's removed | Is it safe? |
|---|---|---|---|
| Telegram | Settings → Data and memory | Photos, videos, files | Yeah (remains in the cloud) |
| Settings → Storage | Media chat rooms | Yeah (if there's a backup) | |
| Phone settings → Applications | Cash tapes and storis | Yeah (requires login to account) | |
| TikTok | Profile → Settings → Release | Temporary files | Yes. |
Once the cache is cleared, social media can be a little slower on the first run, as they have to re-download the avatars and previews, which is normal behavior that quickly normalizes, the main thing is that you return precious gigabytes of free space.
Working with the Download folder and the file system
The Download folder is the default location for everything you download from your browser or receive via Bluetooth. Often users forget about downloaded.apk installation files, presentations or archives that have been deadweight for years.
Open File Manager and go to Downloads. Sort files by size or date. You may be surprised to find old versions of games or forgotten video files that can be painlessly deleted or transferred to your computer.
How to find hidden large files?
It's also worth checking the folders of specific applications at the root of internal memory, for example, DCIM/.thumbnails folders can grow by storing thumbnails of the photos viewed. Although the system adjusts their size, sometimes manually resetting this folder helps if the gallery is not working properly.
Remember the shopping cart in the gallery and the explorer, and the deleted files don't disappear immediately, they move to a basket that's stored for 30 days, and to really make room, you have to go to the cart and select the Clear Everything command.
Removing duplicates and rarely used applications
Over time, apps that you've stopped using accumulate on your phone, and they not only take up space, but they can also run in the background, using up battery, and MIUI has a handy feature that shows you when the app last started.
Go to Settings → Apps → All apps. There's a sort button or filter in the top right corner. Select sort by frequency of use or size. Bravely remove games you haven't played in a month and utilities you don't need anymore.
Special attention should be paid to duplicate photos and videos. If you often take screenshots or shoot the same event several times, memory fills up very quickly. There are special applications for finding duplicates, but you can do with the built-in Screenshots album by manually removing the excess.
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The 30 Day Rule: If you haven't opened an app in a month, chances are you don't need it. Uninstall it or at least turn it off to free up system resources.
Use of cloud storage and memory cards
If internal memory is full of media files, the best solution is to transfer them to the cloud or to an external drive. Services like Google Photos, Yandex.Disk or Cloud Mail.ru allow you to store an unlimited number of photos in compressed quality.
Set up your photos to the cloud automatically. Once you save them to the Internet, use the Free Space feature in the cloud app, which will remove the originals from your phone, leaving only previews that take up minimal space.
For Redmi models that support microSD cards, you can transfer some of the data to an external medium. In the storage settings, select the memory card and format it as portable storage. Then, in the camera settings, specify saving photos and videos immediately to the storage settings. SD-map.
Porting apps to a memory card in newer versions of Android is limited, but some files can still be moved, especially for music and documents, and a memory card is a cheap way to increase the amount of space available without buying a new phone.
⚠️ Warning: Do not use too cheap and slow memory cards (class below 10) This can lead to system freeze, as the data read speed will not be enough for modern applications.
Radical measures: Resetting to factory settings
If none of these methods worked, and the memory continues to fill up with obscure files, it may have been a software failure, in this case a complete factory reset.
This operation will completely clear the internal memory, returning the phone to a "store-like" state, all your data, accounts and applications will be deleted, so it is critical to make a full backup before starting the procedure.
Settings → About the phone → Reset settings → Erase all the contentsOnce reset, the phone will work as fast as possible, reinstall the apps you really need, often to get rid of deep-seated system debris that you can't remove by conventional means.