Xiaomi Deep Cleanup: A Complete Guide to Acceleration

Xiaomi’s smartphones are famous for their MIUI functionality and the new HyperOS system, but over time, even the powerful hardware has difficulty handling the accumulated digital junk. Users often notice that a phone bought a year ago starts to run slower, apps open longer, and free disk space disappears for no apparent reason.

The cause of this behavior is not the wear of the processor, but fragmentation of files, cache proliferation and remnants of deleted programs. Standard cleaning methods often only superficially delete temporary files, leaving in the depths of the system gigabytes of unnecessary data, which slow down the device.

In this article, we will explore professional deep cleaning techniques that go beyond just clicking the Clean button, and learn how to safely remove system debris, manage large files, and optimize the operating system without losing personal photos or contacts.

Memory Occupancy Analysis and Hidden Files Search

The first step in any major optimization is to make a detailed diagnosis of what exactly your drive is doing. Xiaomi's built-in tools provide basic statistics, but deep cleaning requires understanding the folder structure. Often users do not even realize that the Downloads folder or messenger cache can take up to 40% of all memory.

Use the built-in Security app and go to Cleanup. This is where the system will suggest removing obvious debris, but don't rush to settle for everything at once. Click on the folder or Analyzer icon to see the visual distribution of files by category. Pay special attention to the Documents and Other sections, where error logs and temporary update files are often hidden.

• 📁 Check the folder. DCIM/.thumbnails — Here you can find miniatures of the gallery, which can grow up to several gigabytes.
• 🗑️ Find the folders. Android/data and Android/obb, Where do remote games and applications remain.
• 📂 Analyze the Tencent or Telegram directory if you are actively using these messengers to transfer files.

⚠️ Note: When deleting files from system folders, make sure they do not contain your personal documents. Only delete cache, logs and temporary files whose creation date coincides with the period when the relevant applications were already deleted.

For more advanced analysis, you can connect your smartphone to your computer and use the explorer to display hidden files, which will allow you to see the real picture of disk filling that mobile utilities sometimes hide.

Use of built-in MIUI and HyperOS tools

Xiaomi’s operating shells feature powerful built-in system maintenance functionality that is often underrated. The standard Cleanup tool not only removes debris, but also finds duplicate photos, old APK installer packages, and unused apps.

To run a deep scan, open the Security app and select the Cleanup tool. After the initial analysis, click on the Clean button, and then be sure to go to the Deep Clean section, which is where the most heavy and forgotten files are hidden.

The system will suggest that you delete:

• 🧹 Application cache that is not deleted during normal use.
• 📦 Big files you may have downloaded meses back and forgotten.
• 📸 Similar photos, leaving only the best in quality specimens.

It’s also worth using the “Acceleration” feature, which closes the background processes. While Android can manage memory itself, on MIUI shells, manually cleaning RAM before launching heavy games or applications gives a tangible performance boost.

It is important to regularly, at least once a week, conduct such a procedure so that the system does not have time to accumulate a critical mass of temporary files that slow down the indexing and operation of the processor.

Manual cleaning of cache and application data

Automatic tools are good, but they can’t always delete data from specific apps that have swelled to obscene sizes. Social networks like Instagram, Telegram or TikTok tend to store gigabytes of browsed content in local storage.

To do manual cleaning, go to Settings → Applications → All Apps. Choose the most voracious program from the list. Inside the app menu, you will see two important buttons: Clear Cache and Clear All (or Reset).

Settings → Applications → All Applications → [Select App] → Memory → Clean

Using the Clear Cache button is secure and only deletes temporary files, speeding up the program, but the Clear All or Reset button will return the application to state immediately after installation, deleting your logins, settings, and stored data.

• 🚀 Clear browser cache as they store copies of all pages visited.
• 🎵 Delete the cache of streaming services (Spotify, YouTube) if you do not use offline mode constantly.
• 🛒 Periodically clean the data of marketplace applications to free up space from product catalogs.

⚠️ Warning: Before using Clear Data, make sure you remember your account passwords, as you will need to re-authorize.

This method is especially effective for instant messengers, where the history of correspondence can be stored locally, and the settings of the messenger itself (for example, in Telegram or WhatsApp) have their own memory management tools that often work more accurately than the system ones.

Removal of system debris and residual files

When you delete applications in Android, you often have tails — folders with remote program names, error logs, and configuration files — that can accumulate hundreds over time, and they take up valuable space on the system partition.

You can use the File Explorer built-in to find these files, sort files by date of change or size, look for folders with names of remote games or services, and check the root directory for files with the.log extension or folders with names like temp, tmp.

There's a hidden feature in the dial menu that allows you to access testing, but it's better to use proven ways to clean up. New versions of HyperOS have "Extended Cleaner," which automatically finds residual files.

If you're using a computer, plug your phone into a USB and manually review your files, which is the most reliable way to see the extra, because it's easier to navigate the directory structure on a large screen.

Cleaning through Developer Mode and ADB (for Advanced)

For users who want to get the most out of it and aren’t afraid of technical terms, there’s a USB debugging and computer cleanup method that allows you to delete the system cache and data that is not available through a normal interface.

First, activate the developer mode. To do this, go to Settings → About Phone and quickly click on MIUI or HyperOS 7 times. Then turn on Debugging via USB from the "Additional" menu.

Connecting the phone to a PC with installed ADB (Android Debug Bridge, you can execute commands to clear the Dalvik cache (in older versions of Android) or simply reset the system cache:

adb shell pm trim-caches 999999999

This command forcibly trims the cache of all applications, freeing up space, and you can use the command to remove system updates if you have already updated and you do not need the old version files to roll back:

adb shell pm uninstall -k --user 0 com.android.updater

• 💻 Requires a connection to the computer and the presence of drivers ADB.
• ⚡ Allows you to remove system debris that is not available to the ordinary user.
• ⚠️ Care must be taken not to remove critical system components.

Use of the ADB command_root_-similar features without the need to unlock the bootloader or obtain superuser rights, which retains the warranty on the device.

💡

Use the adb shell dumpsys meminfo command to see which applications consume the most RAM in real time.

Resetting settings as an extreme measure of optimization

If none of these methods worked and the phone continues to run in an unstable way, the last radical, but most effective way is to completely reset to factory settings, which puts the device back out of the box, removing all the debris, registry errors, and setting conflicts.

Before starting the procedure, be sure to back up all important data to the Xiaomi Cloud, Google Drive or your computer. After resetting, it will be impossible to restore deleted files.

To perform the reset, go to Settings → About Phone → Settings Reset → Erase all data. The system will alert you to the consequences and ask you to enter the unlock password.

⚠️ Warning: Make sure the battery is at least 50-60% Interrupting the process by turning off the phone can damage the system partition and prevent the device from starting.

Once you restart, you'll get a clean system, and it's recommended that you don't restore all applications from backup at once, but install them as needed, and that you prevent junk files from returning from old versions of programs.

💡

A complete reset is not just deleting files, it is reinstalling the operating system, which ensures that software errors accumulated over the years of use are eliminated.

Prevention and maintenance of speed

To avoid going back to deep cleaning too often, it's worth introducing a few smartphone usage habits: Regular maintenance takes less time than dealing with the effects of clutter.

First, keep an eye out for system updates. Xiaomi engineers are constantly optimizing file system and memory algorithms in newer versions of MIUI and HyperOS.

Second, use the lightweight versions of apps where possible, such as Facebook Lite or Google Go, which take up less space and consume less resources than their full counterparts.

• 🔄 Once a month, check the list of installed applications and remove unnecessary ones.
• 📸 Set up an automatic upload of photos to the cloud and remove them from your device.
• 🚫 Turn off automatic media file saving to the gallery for unnecessary chats.

Compliance with these simple rules will allow your Xiaomi to stay fast and responsive throughout its life.