How to clear system memory on Android Xiaomi: a complete guide

Modern smartphones Xiaomi have enormous capabilities, but even flagship models eventually begin to suffer from a lack of free space. The problem of clogged memory becomes critical when the system stops downloading updates or applications begin to crash with an error. Users often confuse random access memory (RAM) and internal storage (ROM), trying to free up space where it is not really needed.

In this article we will analyze in detail how to clear system memory on devices with shell MIUI and new HyperOS. You will learn not only about standard cleaning methods, but also about hidden functions that will help you get back gigabytes of precious space without losing important data.

You should not immediately run to the store for a new memory card or phone. Often the problem is solved by proper configuration and removal of accumulated “digital garbage”, which quietly eats up the resources of your device.

Storage diagnostics and analysis of occupied space

The first step before any cleaning should be a thorough diagnosis. Shells from Xiaomi have a built-in powerful analysis tool that visually shows what exactly your storage is full of. Without understanding the file structure, you risk deleting the necessary data, leaving behind useless garbage.

To start the analysis, go to the menu Settings → About phone → Storage. Here the system will prompt you to click the “Clear” button, but before you do this, carefully study the data distribution chart. Often the lion's share of space is occupied not by system files, but by instant messenger caches or downloaded videos.

Pay attention to the “Other” category. This section often raises questions, as it can take up tens of gigabytes. It includes archives, application installer files (APK), temporary files and data that the system could not classify.

⚠️ Attention: If the “Other” category takes up more than 30% of the total memory, this may indicate a file system error or a malfunction of a specific application that writes logs uncontrollably.

Use of third-party disk analyzers such as as DiskUsagecan give a more detailed picture, showing the nesting of folders, which the standard menu MIUI sometimes hides. This will help you find forgotten folders with downloads from the browser or the remains of deleted games.

Using the built-in Security application

The easiest and safest way to start cleaning is to use the pre-installed application "Security". This is a system tool that is deeply integrated into the shell and has rights to delete temporary files that are not available to conventional file managers.

Run the application and select "Cleanup". The system will automatically scan your device for cache, residual files and advertising. The algorithms Xiaomi are smart enough to distinguish important data from garbage, but manual control still won't hurt.

In the “Deep Cleaning” section you can find large files, duplicate photos and rarely used applications. The duplicate search function is especially useful, as users often take several identical pictures, which waste space.

Do not forget to run this procedure regularly, at least once a week. Cache accumulation is a natural process Android, and periodic cleaning prevents the interface from slowing down and errors appearing when installing new apps.

Clearing the application cache and messenger data

Messengers like Telegram i WhatsApp are the main memory hogs on modern smartphones. They automatically save all viewed photos, videos and documents to local storage, even if you have already read the content.

To free up space, you need to go to the settings of a specific application. In Telegram this is done through the menu Settings → Data and memory → Memory usage. Here you can set the automatic retention period for media files, for example, 3 days or 1 week.

For WhatsApp the path is slightly different: Settings → Data and storage → Storage management. Here you will see a list of chats sorted by space occupied, and you can delete media files from the heaviest conversations selectively.

• 🗑️ Clear the application cache, not data, if you want to save chat history and logins.
• 📸 Disable autosaving of photos to the gallery in the messenger settings so as not to duplicate files.
• 📂 Regularly check the folder Downloadwhere attachments from mail and browsers are often saved.

It is important to distinguish between the concepts of “Clear cache" and "Clear data". The first deletes temporary files, speeding up work, and the second resets the application to its factory state, deleting all accounts and settings.

Managing cloud storage Mi Cloud and Google Photos

Transferring data to the cloud is one of the most effective ways to relieve internal memory. The ecosystem Xiaomi offers a service Mi Cloudthat allows you to synchronize contacts, notes, voice recorder and, most importantly, the gallery.

Activate the “Gallery Synchronization” function in the settings Mi Cloud. After uploading the original photos to the cloud, you can enable the "Free up space" option. This will delete local copies of the photo, leaving only their thumbnail previews in the gallery.

An alternative is the service Google Photos, which also has a space-freeing function. It finds photos that have already been uploaded to a cloud account Googleand deletes them from the device, saving gigabytes of space.

Service	Free limit	What synchronizes	Feature
Mi Cloud	5 GB	Gallery, Contacts, Notes	Deep integration with MIUI
Google Photos	15 GB (general)	Only photos and videos	Smart search by image
Yandex.Disk	10 GB	Any files	Unlimited for photos from your phone

Remember that these functions require a stable Internet connection to work. It is better to set up synchronization via Wi-Fiso as not to waste mobile traffic and drain the battery.

⚠️ Attention: Before enabling the “Free up space” function, make sure that synchronization was successful and all photos are available in the cloud through the browser.

Removing system junk and residual files

When deleting applications on Android there are often empty folders and configuration files that are no longer needed by the system. These “tails” can accumulate for months, taking up a significant amount of memory.

To search for such files, you can use the built-in file manager Explorer. Go to the root folder and pay attention to the directories with the names of deleted games or apps. It is also worth checking the folder Android/obb i Android/datawhere game caches are stored.

Be extremely careful when manually clearing the folder Android. Deleting the necessary subfolders may cause installed applications to stop launching or lose their data.

What is the .thumbnails folder?

In this hidden folder, the gallery stores thumbnails of all your photos for quick viewing. Over time, it can grow to several gigabytes. It can be safely deleted, but the system will create it again.

There is a myth that frequently clearing the entire system cache through the engineering menu is useful. In fact, this forces the processor to re-generate temporary files, which only increases the load on the drive and reduces its resource.

Advanced cleaning via ADB and developer rights

For advanced users who want to get the most out of their device, there is a cleaning method through debugging ADB (Android Debug Bridge). This method allows you to remove system dummy applications (bloatware) that cannot be removed in the usual way.

First you need to activate developer mode. Go to Settings → About phone and quickly click 7 times on the “MIUI Version” or “OS Version” item. Then, in the advanced settings, enable “USB Debugging.”

Once you connect your phone to your computer, you can use commands to remove packages. For example, the command to remove an unnecessary service looks like this:

adb shell pm uninstall -k --user 0 package name

This method requires precision. An error in the name of the package can lead to unstable operation of the system or the “bricking” of the phone, requiring flashing.

• 🔍 Use the command adb shell pm list packages to get a list of all installed packages.
• 🛡️ Never remove packages associated with com.android or com.miuiif you do not know exactly their purpose.
• 💾 Before starting manipulations, make a complete backup copy of the data on your computer.

Remember that removing system components may violate warranty service. If the phone is under warranty, it is better to refrain from using ADB to deep clean the system.

Prevention and maintenance of system cleanliness

The best cleaning is the one that is not required. Following simple rules of digital hygiene will help keep yours Xiaomi in excellent condition without the need for emergency measures to free up space.

Regularly review your subscriptions to messenger channels and unsubscribe from those that publish a lot of heavy content. Set up automatic downloading of media only through Wi-Fi or disable it completely.

Once a month, audit installed applications. If you haven't used the app in the last three months, you probably don't need it. Removing such applications will not only free up space, but also speed up the operation of the smartphone.

⚠️ Attention: The interface and names of menu items may vary slightly depending on the version of MIUI or HyperOS. Always check the current settings of your firmware version.

Timely installation of system updates is also important. Engineers Xiaomi continuously optimize memory algorithms, fixing leaks and improving the performance of built-in cleaning tools.

Why does memory fill up by itself immediately after cleaning?

This is normal system behavior. Applications create a cache to load content quickly. In addition, system logs and messenger databases are constantly updated. If the space disappears too quickly (gigabytes per hour), check your phone for viruses or faulty applications.

Is it safe to delete the MIUI/.gallery_cloud_cache folder?

Yes, this folder can be deleted. It stores temporary data synchronizing the gallery with the cloud. After deletion, the system will create it again if necessary. This will not affect your main photos.

How to clear the memory if the phone does not turn on?

If the phone is stuck on the screensaver due to full memory, try booting into Recovery mode (Volume Up + Power). From there you can try to do a factory reset (Wipe Data), but this will delete all data. It’s better to contact the service.

Does full memory affect Internet speed?

Indirectly, yes. If there is a critical lack of space, the system has no place to store temporary browser files and a cache of network requests, which can lead to slower page loading and connection breaks.

Do you need to install third-party apps like Clean Master?

No, in modern versions of Android and MIUI, built-in cleaning tools work more efficiently. Third-party “cleaners” often consume a lot of resources, show ads and can slow down the device.