How to Clean Memory on Xiaomi if It’s Clogged with Invisible Files

Owners of Xiaomi smartphones often face a paradoxical situation: the phone’s memory is filled to the full, but at the same time, in the gallery, downloads and even through the file manager, you can not see files occupying gigabytes of space. The reason lies in hidden system data, application cache, remnants of remote programs and specific features of the MIUI firmware. Unlike the iPhone or “pure” Android, Xiaomi devices aggressively reserve memory for background processes and updates, which can lead to artificial “bloating” of occupied space.

The problem is compounded by the fact that standard cleaning methods are through Settings. → Memory or built-in cleaner -- often just remove the tip of the iceberg. /data, /cache And service sections that are not available without root rights or special tools. 7 Proven ways to get your space back on Xiaomi, including little-known tricks for Redmi Note models 10/11/12, POCO X3/X4 and flagship Xiaomi 13/14. All methods tested on current versions MIUI 14/15 They do not require the unlocking of the loader.

1.Deep cleaning through hidden MIUI menu

MIUI has a hidden diagnostic menu where you can remove system debris that is not available through standard settings, which works on all Xiaomi models, including Redmi and POCO, but requires care – wrong actions can reset some settings.

To open the menu:

1. Open the phone application (number dialer).
2. Enter the combination: ##4636###.
3. In the window that appears, select Storage.
4. Click Clear Cache – this will delete temporary system and application files.

For deeper cleaning:

• 📱 Go back to the main diagnostic menu and select Battery Information).
• 🔄 Scroll down and click Reset Battery Statistics – this indirectly clears part of service logs.
• 🗑️ Go to Settings. → Annexes → App management, sort by size and manually clear the cache for Google Play Services, MIUI System and Security.

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If the phone is slower after cleaning through ##4636##, restart it and the system will restore critical cache files automatically.

Warning: Do not use the Clear Data option in this menu, as this will result in all applications being reset to factory settings, including deleting accounts and saved passwords.

2. Delete "dead" files via ADB (without root)

Even after uninstallation of applications on Xiaomi, the so-called “dead files” – remnants of cache, configurations and temporary data – cannot be seen through standard Explorer, but they take up to 3-7 GB on devices that have been actively used for 1-2 years, you will need a computer and an ADB tool (Android Debug Bridge) to delete them.

Instructions:

1. Download ADB Tools and unpack it into a folder on your PC.
2. On your phone, activate Developer Mode (7 times click on the MIUI version in Settings → About Phone) and enable Debugging over USB.
3. Connect your phone to your PC and in the command line (in the folder with ADB) do:

adb shell


pm list packages -f | grep -E "data/app/.*-1" | cut -d"=" -f2 | xargs -n1 pm uninstall -k

This command removes the remnants of uninstalled applications. To clear the cache of system applications (without removing the programs themselves), use:

adb shell pm clear --user 0 com.miui.securitycenter


adb shell pm clear --user 0 com.android.vending

Download ADB Tools from the official website|Enable the developer mode on Xiaomi|Activate debugging by USB|Connect your phone to the original cable|Check the connection of the team `adb devices`-->

⚠️ Note: Do not use pm uninstall commands for system applications (e.g. com.miui.home) - this can lead to bootloop (locked phone turn on).A list of safe packets for cleaning can be found in the topic XDA Developers for your model.

3. Clean up /data/app-lib folder (hidden cache)

Xiaomi has a hidden folder /data/app-lib with MIUI 12-15, where the application libraries, including the remote ones, are stored. These files are not displayed in standard Explorer, but can take up to 1-2 GB. There are two ways to delete them:

Method 1: Through a root file manager (if the phone is rooted)

• 📁 Install Root Explorer or FX File Explorer.
• 🔍 Move to the /data/app-lib.
• 🗑️ Delete all folders except those related to current applications (they can be identified by the name of the package, for example, com.whatsapp).

Method 2: No rooting through ADB

Follow the command:

adb shell


su




rm -rf /data/app-lib/*




exit




exit

⚠️ Note: After this operation, some applications may require reinstallation. /data/app-lib device-wise MIUI 16+, This could disrupt Google Mobile Services.

Once a week | Once a month | Only when the place is out | Never clean |I don't know how to do it-->

4. reset partition cache (wipe cache partition)

One of the most effective ways to free up space is to reset the cache partition, which stores temporary update files, system logs, and recovery data, a method that doesn’t affect user data but requires a reboot to Recovery Mode.

Instructions for Xiaomi/Redmi/POCO:

1. Turn off the phone.
2. Press the Power button + Volume up until the MI logo appears.
3. In the Recovery menu, select the language (if required) then:

Reboot → Reboot to System

This method frees up between 500MB and 2GB of space, depending on the time of the last cleanup, and is especially useful after major MIUI updates when the system saves older versions of the firmware for rollback.

5. Removal of duplicates and residues of MIUI updates

MIUI is known for leaving older versions of system files in the /cache/recovery folder after updates, which can take up to 3-5 GB and are not deleted automatically, and duplicate photos created by the Gallery and Google Photos apps are accumulated in the system.

How to clean:

• 📁 To remove old updates: Connect your phone to your PC and use ADB: adb shell rm -rf /cache/recovery/* Or manually remove the folder contents via Root Explorer (if there is root) /cache/recovery.

1. Install Files by Google or SD Maid.
2. Run the duplicate scan in DCIM, Pictures and Download folders.
3. Remove LOWRES resolution copies (created by Google Photos) and thumbnails from.thumbnails.

6. Disable MIUI Cloud Backup

MIUI Cloud automatically creates local backups that can take up to 10 GB of data on active-synchronization devices, stored in a hidden /miui/backup/allbackup folder and not displayed in a standard Explorer.

How to turn off and clean:

1. Go to Settings → Xiaomi Account → MIUI Cloud.
2. Turn off automatic backup.
3. Return to Settings → Memory → Files and manually delete the miui folder (you will need a file manager with access to hidden folders, such as Solid Explorer).

⚠️ Note: If you are using backup to SMS or notes, pre-export them manually through Settings → Additionally. → Backup and reset.

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Disabling MIUI Cloud does not remove backups already created – they need to be manually cleaned through a file manager or ADB.

7.Verification for viruses and malicious applications

Sometimes invisible files are the result of viruses or potentially unwanted programs (PUPs) masquerading as system processes, such as HiddenAds Trojans download banner ads into hidden folders, and mining viruses create temporary files for calculations.

How to check:

• 🛡️ Install Malwarebytes or Dr.Web Light and perform a deep scan.
• 🔍 Check the list of installed applications in Settings → Applications for suspicious programs (for example, with names such as System Update, Android Helper or Cyrillic characters).
• 📊 Use it. ADB futuristic APK: adb shell pm list packages -f | grep -i "suspicious"

If viruses are found:

1. Remove suspicious apps through Settings → Apps.
2. Clear the cache and data of Google Play Protect (com.google.android.gms).
3. Reset the cache of the section (see section 4).

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Viruses are often disguised as system applications, and if you doubt the legitimacy of a program, check the name of the program in VirusTotal.

FAQ: Frequent questions about Xiaomi memory cleanup