How to delete hidden files on a Xiaomi smartphone: complete guide

Modern smartphones Xiaomi with a shell MIUI or a new one HyperOS accumulate a huge amount of data during operation. The user sees some of them every day, but a significant amount of information remains invisible to the standard view. These are the so-called ones, which can take up gigabytes of precious internal storage. They are often formed after deleting applications, are hidden by system settings, or are a cache of instant messengers that is not displayed in normal mode. hidden files, which can take up gigabytes of precious internal storage. They often form after uninstalling applications, are hidden by system settings, or represent a messenger cache that is not displayed in normal mode.

The need to remove such data arises when the device’s memory becomes critically full, and standard cleaning tools no longer help. The process of searching and eliminating these objects requires care, since removing system components can lead to unstable operation of the gadget. In this material, we will examine in detail safe methods for detecting invisible data and completely deleting it without losing important information.

You will learn how to activate the hidden items display mode, which folders can be touched safely, and which ones are best left untouched. We'll look at working with built-in tools, connecting to a computer, and advanced techniques for advanced users. Understanding the structure of the file system Android will help you effectively manage the space of your device.

The nature of hidden data in the Android system

The operating system file system Android is designed in such a way that many service data are hidden from the user's eyes by default. This is done to protect critical system components from accidental removal. However, over time, digital garbage accumulates in these protected directories, which does not participate in the operation of the device, but takes up space.

The main sources of such data are the remains of uninstalled applications, error logs and temporary update files. Developers often create folders with a dot at the beginning of the name, for example .thumbnails or .cacheto hide them from standard viewing. These directories can grow to impressive sizes, especially if you actively use the camera or social networks.

It is also worth considering the specifics of the work of instant messengers like Telegram or WhatsApp. They often store media files in hidden folders that are not indexed by the gallery, but are physically present in memory. Without special access to this data, you will not be able to free up space, even if you delete all visible photos and videos.

⚠️ Warning: Deleting files starting with a dot in the system root may result in resetting application settings or losing saved passwords. Always check the contents of the folder before cleaning.

Why does the system hide files?

Hiding files is a standard practice in Unix-like systems that Android is built on. Files with the prefix "." are considered configuration or service. This protects the user from accidentally deleting settings, but prevents them from seeing the actual amount of occupied space.

Activating the hidden items mode

The first step to cleaning is to gain access to invisible objects. In standard Explorer Xiaomi this feature is disabled by default for security reasons. You need to manually change the display settings to see the full picture of memory usage.

Open the application Explorerthat is preinstalled on your device. In the interface, look for the menu icon, usually located at the top of the screen or hidden under the three-bar icon. In the drop-down list you need to find the item Settings or Viewing options.

In the menu that opens there will be a switch with the name Show hidden files. Activate it by moving the slider to the right. After this, items with translucent icons or names starting with a dot will appear in the list of folders. Now you see everything that is stored on the drive.

• 📂 Open the side menu in Explorer through the "hamburger" button.
• ⚙️ Go to the application settings section at the very bottom of the list.
• 👁️ Find the toggle switch for showing hidden items and turn it on.
• 🔄 Refresh the list of folders by swiping down to apply the changes.

It is worth noting that in different versions MIUI the location of this item may vary slightly. If you don't find the setting right away, try using the search inside the settings menu of the Explorer itself. The interface may vary depending on the regional firmware.

Manual cleaning through the built-in file manager

After enabling the display of hidden elements, you can begin direct cleaning. The safest method is manual garbage removal via a standard interface. This allows you to visually control what exactly you are erasing, minimizing the risk of damage to the system.

Pay attention to the folder .thumbnailslocated in the directory DCIM. Thumbnails of all your photos and videos are stored here. Over time, this cache can take up several gigabytes. You can safely delete it completely: the system will automatically recreate it the next time you open the gallery, but with the current weight.

Also check the root directory of the internal memory for folders from deleted applications. Often, after uninstalling games or apps, empty or partially filled directories with the names of the developers remain. If you are sure that the application is no longer in use, such remains should be deleted.

Don't forget about the folder Android/data. It stores data from installed apps. Although access to it in new versions Android is limited, through Explorer Xiaomi you can still see some hidden subfolders inside. Delete only those that relate to already deleted apps so as not to reset your progress in games.

Folder name	Location	Can I delete?	Consequences
.thumbnails	DCIM	Yes	Gallery slowdown on first launch
.cache	Root / Applications	Yes	Re-downloading data from the Internet
Android/obb	Android	No	Games will stop launching
MIUI/debug_log	MIUI	Yes	No logs for diagnostics

The deletion process is simple: hold your finger on the unnecessary folder until a checkmark appears, then select the trash can icon at the bottom of the screen. Confirm the action in the dialog box that appears. The freed up space will become available instantly.

Using a computer for deep cleaning

Connecting a smartphone to a personal computer opens up opportunities for a more detailed analysis of the file structure. Through the interface Windows or macOS it is easier to navigate large amounts of data and apply mass deletion. This is especially convenient for finding duplicates and large hidden archives.

Connect the device with a USB cable and select the file transfer mode MTP in the phone's notification shade. On your computer, open the disk that appears. To see hidden files in Windows, go to the View tab in the top panel of Explorer and check the box next to Hidden elements.

Now you will see all files with the "hidden" attribute. Be extremely careful: the computer will not warn you about the danger of deleting a system file as clearly as a smartphone does. Delete only those directories whose purpose you know, for example, browser caches or temporary bootloader files.

⚠️ Attention: When connecting to a PC, do not delete files with the .xml or .db extension from the system folders. This may disrupt the operation of Google services and the MIUI shell.

To find the heaviest files, use the sort by size function in your computer explorer. Often large hidden files turn out to be forgotten video archives or memory dumps from faulty applications. Removing them safely and effectively frees up space.

Advanced methods: ADB and system partitions

For users with technical knowledge, there is a cleaning method via USB debugging using a computer and utility ADB (Android Debug Bridge). This method allows you to access files that are hidden even when display mode is turned on in regular Explorer.

First, you need to activate developer mode. Go to Settings → About phone and quickly click on the build number MIUI seven times. Then, in the advanced settings, enable USB debugging. Connect your phone to the PC and authorize the connection on the smartphone screen.

Using the command line on your computer, you can run the command to view all files, including system hidden ones:

adb shell ls -la /sdcard/

This command will display a complete list of files with their attributes. To delete a specific hidden folder, use the command rm -rf. For example, to delete the cache:

adb shell rm -rf /sdcard/.cache_folder_name

This method requires maximum concentration. An error in one letter of the command can lead to the deletion of important data or even to the “bricking” of the device if the system partition is affected /system. Use this method only if other methods did not help.

• 💻 Install ADB drivers and platform tools on your computer.
• 🔌 Connect your smartphone and enable debugging in the window that appears.
• ⌨️ Enter the ping command adb devices to confirm access.
• 🗑️ Perform deletion commands only after double checking the path.

Remember that some hidden files may be protected by access rights. In this case, standard ADB commands without root access will not work. Do not try to bypass these restrictions without understanding the consequences.

Prevention and optimization of storage

Removing accumulated garbage is a one-time measure. To prevent the problem of hidden files from returning at the same rate, it is necessary to implement regular prevention. The system Xiaomi provides built-in tools for automatic maintenance, which should not be neglected.

Use the application Securitypre-installed on the device. Run the function Cleaning at least once a week. The application's algorithms analyze the folder structure and offer to remove outdated caches and application remnants that you may have missed manually.

Set up automatic cache clearing in popular applications. For example, in Telegram you can set a limit on the cache size in the settings Data and memory. Specify a limit, for example, 1 GB, and the application will automatically delete old hidden files when the limit is exceeded.

⚠️ Warning: Do not install aggressive "cleaners" from third-party stores. They often contain advertising and themselves create hidden files to track your activity.

Check the folder Download/ i Bluetooth/regularly. Temporary files that users forget to delete often end up there. The simple habit of viewing these directories once a month will help keep your storage tidy without complex manipulations.

Frequently asked questions (FAQ)

Is it safe to delete all files starting with a dot?

No, not all. Files like .nomedia are needed to display the gallery correctly, and .android_secure contains data about applications on the SD card. Delete only those whose purpose you know (for example, the thumbnail cache).

Why is the space not freed up after deleting hidden files?

Perhaps the files were moved to the trash in Explorer itself. Check the Trash folder in your file manager and empty it. It is also possible that the system has not yet updated the storage index - try rebooting the device.

Is it possible to delete the Android folder completely?

Absolutely not. The folder Android contains data of all installed applications and the system. Removing it will cause all apps to stop working, and the phone may stop booting correctly.

How to find hidden files if Explorer does not show them?

Try installing a third-party file manager, for example, Solid Explorer or FX File Explorer. They have their own display engines and often see what is hidden from the MIUI system explorer.

Does deleting hidden files affect the warranty?

Deleting user files and cache itself does not affect the warranty. However, if you use methods with root access or ADB to delete system files and this leads to a breakdown, the service center may refuse free repair.