Xiaomi’s smartphones are famous for their functionality and affordable price, but over time, even powerful devices start to run slower. The main reason for the performance decline is often overcrowded memory and the accumulation of system debris. Users notice delays when switching between applications, long page loads and sudden closure of background programs.
In Android, which has a MIUI shell or a new HyperOS on top, files accumulate all the time, including remnants of deleted apps, browser cache, thumbnails of photos and temporary update files. If you don't clean regularly, the free space runs out, which critically affects the stability of the gadget.
In this article, we will discuss proven ways to free up space, learn how to safely delete excess data without damaging important documents, and the right approach to system maintenance will allow you to extend the life of the device and keep it fast at a high level.
Use of the built-in Security application
The easiest and safest way to start cleaning is to use the manufacturer’s standard toolkit, which preinstalled a Security app in every Xiaomi smartphone that has access to system files and can delete them without risking stability, a method ideal for rapid prevention.
Run the program through the main screen or settings menu. The system will automatically scan and show an approximate amount of debris occupied. Press a large green button to start the cleaning process. The algorithm will delete temporary files, cache and residues of APK installation packages.
But automatic cleaning doesn't always remove everything that's superfluous, and you can have error logs and social media cache that takes gigabytes deep down in the folders, and you need to go to the extended cleaning menu inside the app to get deeper cleaning.
💡
Start a standard cleaning once a week to prevent critical memory filling and slowing down the interface.
It's important to understand that app cache isn't always harmful data. It speeds up the launch of commonly used programs. Deleting the cache completely can cause you to re-upload images or log in the next time you log in to an application. Use the selective cleaning feature for heavy programs.
Manual cleaning through File Manager
The integrated File Manager provides access to the entire file system of the device, where you can find and delete large videos, duplicate photos and forgotten downloads, and manual control avoids deleting necessary documents that automatic systems may consider garbage.
Go to Analyzer or Files, and the system sorts the data by type: images, video, audio, documents, and look at the Download folder, which often stores installation files and documents from messengers. Delete old ones. APK-Files are a great way to free up space.
- 📁 folder DCIM: Here are stored photos and video from the camera, check the basket for deleted images.
- 📱 folder MIUI: It contains logs and error reports that can be safely deleted if you don’t send them to developers.
- 💬 folder Tencent/MicroMsg: junk files from messengers, occupying huge amounts of memory.
⚠️ Note: Be extremely careful when removing files from Android system folders. Only delete files that you know are intended (such as card cache or temporary browser files).
For advanced users, file size sorting is available, which helps you find heavyweights that you might have forgotten to delete, often long screen videos or saved offline maps of the navigator.
Cleaning the cache of applications and data
Social networks and instant messengers generate the most garbage, and apps like Telegram, WhatsApp and YouTube store thousands of thumbnails and videos that are viewed, and over time, this cache can grow to tens of gigabytes, eating up space unnoticed.
To clear the data of a particular application, go to Settings, then select the Applications and find the list you want. Inside the program menu, look for Memory or Storage, and here you will see two buttons: Clear cache and Clear everything.
The first button is secure and only deletes temporary files. The second button will reset the app to the state immediately after installation, deleting your logins, correspondence and settings. Use Clear only if the program is not working correctly or you want to completely delete its data before selling the phone.
Why does the cache take up so much space?
It is recommended to check the settings of the messengers themselves regularly, for example, in Telegram you can limit the size of the cache or set up its automatic cleaning after a certain period of time, which will save you from having to do it manually.
Removal of duplicates and large files
When you use a smartphone, you often create copies of documents and photos, which can happen when you sync with the cloud, send files through different messengers, or accidentally re-save them, duplicates take up space uselessly.
Modern versions of MIUI have built-in duplicate search, which analyzes the contents of the gallery and file system, suggesting that you delete copies, and there are specialized software-cliner applications, but often enough standard tools.
| File type | Where to find | Safe to remove |
|---|---|---|
| APK installers | Download folder | Yes, if the app is installed |
| Tumbnails (.thumbnails) | DCIM/.thumbnails | Yes, the system will create new ones. |
| Error logs (.log) | MIUI/debug_log | Yeah, unless it's debugging. |
| Temporary files | Temp folder | Yes. |
Pay special attention to the Bluetooth folder, and if you often take files over blue teeth, there may be old videos or music that you no longer need, and deleting them is a quick way to get free megabytes.
☑️ Weekly cleaning of the phone
Special features and resetting settings
If standard methods don't work and the phone keeps slowing down, maybe the problem is deeper. In some cases, cleaning through Recovery mode helps, but that requires caution. A milder method is using Safe Mode to find the culprit.
Turn on Safe Mode by pressing the turn off button and selecting the appropriate option (or by pressing the volume button when booting, depending on the model). This mode only runs system applications. If the phone is fast, then garbage or malware is in one of the applications you install.
⚠️ Warning: Full Hard Reset will remove ALL data from your phone.Be sure to back up your contacts and photos to your computer or cloud before doing so.
The last resort is a factory reset, which will put the phone back into a store-like state, and the way to that is Settings → About the phone → Resetting, and then the device will run as fast as possible, because all the digital junk that has accumulated will be gone.
Use reset only if other methods fail, as this is the most radical way to solve the memory problem, and it takes time to reconfigure all services.
Prevention and optimization of MIUI
To avoid going back to cleaning too often, adopt good habits, don't store hundreds of unnecessary screenshots and app installers, and regularly delete apps you've stopped using.
Turn on automatic cleaning in the Security app. Set up memory fill notifications to respond to the problem before the phone starts to brake. Also keep an eye out for system updates - newer versions of Android often contain improvements in memory.
- 🚫 Turn off autoboot for rarely used apps in battery settings.
- 🌩️ Use cloud storage for photos and videos by enabling the “Free Space” function".
- 📉 Use Lite versions of apps (like Facebook Lite) if you have little memory.
Compliance with these simple rules will allow your Xiaomi to stay fast and responsive throughout its lifespan.Memory is a resource that requires management, and regular “hygiene” of the digital space is the key to stable operation.
💡
Regularly cleaning the cache and removing unnecessary files prolong the life of the drive and prevent critical system slowdown.