Xiaomi Memory Analysis: What is the Phone Clogged and How to Fix It

Xiaomi is suddenly slow and space-short notifications are frighteningly regular, and it often seems like the phone is clogged for no apparent reason: you haven’t downloaded 4K movies or installed heavy games, but the space is gone, due to the way the MIUI and HyperOS shells work, which aggressively accumulate temporary files, duplicates, and logs of system processes.

Unlike pure Android, firmware from the Chinese manufacturer creates many hidden directories that are difficult to see with standard tools. System debris can take up up to 30% of all internal memory if not controlled. Understanding the structure of folders and distinguishing important system files from unnecessary cache are key skills for a modern smartphone owner.

In this article, we will look at exactly which sections eat gigabytes, how to safely remove excess, and which tools are best used for deep cleaning. You will learn to find heavyweights in the gallery, messengers and system logs, turning your gadget into a fast and responsive tool.

Anatomy of the vault: where the free space hides

The first thing a Redmi or Poco owner needs to understand is that the standard memory display in settings often hides the real extent of the problem. The system divides the space into several categories, but does not always show their real weight. The main "eaters" are usually the "Apps", "Images" and the mysterious "Other" section, which can inflate to incredible sizes.

The Other section is a collection of browser cache, residual files from deleted programs, error logs and instant messenger data. Telegram and WhatsApp, for example, store the received media files in their own folders, which the system may not classify as photos or videos, hiding them in the back of the file system, and also include firmware update files that were not deleted after installation.

Another important aspect is data duplication: when synchronized with the Mi Cloud or Google Photos cloud, the device can still have local copies if the Free Space function is not configured, which creates a dual-boot effect: the file seems to be in the cloud, but physically occupies space in the phone's memory, and checking sync settings regularly helps avoid such overlays.

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Use the built-in Security app for initial evaluation only. For deep analysis, it is better to download Google's File Manager or a dedicated disk analyzer that will show a visual memory card.

System garbage and cache: cleaning without harm to the OS

The safest way to free up space is to work with the app cache. Cache is temporary data that speeds up the loading of frequently used functions, but over time becomes redundant. MIUI has a built-in cleaning tool, but it often acts superficially, afraid to remove the excess. For deeper cleaning, you need to go into the settings of each heavy application separately.

Chrome, YouTube and Instagram are accumulating gigabytes of thumbnails, scripts and temporary videos, and cleaning up that data won’t delete your accounts or passwords, but it will reset your page display settings, which in some cases is even useful for bug fixing.

⚠️ Note: Do not attempt to manually delete files from Android system folders, such as /data or /system, without root rights and a deep understanding of the structure, which can lead to a cyclical restart of the phone).

You can use safe paths to manually clean up system debris, like a folder. MIUI/debug_log It often contains debugging logs that only developers need when searching for bugs. If you're a regular user, you don't need those text files, and deleting them will free up valuable megabytes.

Communication heavyweights: Telegram, WhatsApp and Viber

The undisputed leader in memory consumption in Xiaomi smartphones are messengers. Telegram by default downloads all media files from channels and chats to the device. If you are in dozens of channels where videos and pictures are published daily, your phone turns into an archive of other people's content, occupying tens of gigabytes.

Inside the Android/data/org.telegram.messenger folder (the path may vary depending on the Android version), all the files received are stored. The problem is that even after cleaning the chat in the app itself, files can remain in the cache. Telegram settings have a useful feature called Memory Use, where you can set an automatic cache cleanup, for example, every 3 days.

WhatsApp works differently: it stores all media in a shared gallery, creating duplicates. 10 chat rooms, can lie in 10 Regularly cleaning folders. WhatsApp/Media/.Statuses (statuses) and removing unnecessary videos from the WhatsApp Video folder is a mandatory procedure for the owner of this OS.

⚠️ Attention: Before manually cleaning the messenger folders through the file manager, be sure to back up important documents.

Use built-in tools to manage your messaging media. Telegram's Settings → Data & Memory → Memory Use menu, where you can see a detailed graph and clear the cache with a single click without deleting your history.

MIUI folder analysis: what can be manually deleted

Xiaomi owners often encounter folders whose names say nothing, and let's break down the main ones so you know what you can and can't touch. The MIUI-based Android file system has its own logic, and knowing the main directories will help keep things in order.

The thumbnails folder deserves special attention. It's a hidden folder that stores smaller copies of your photos for quick display in the gallery. If you have thousands of photos, this folder can weigh 5-10 GB. It's safe to delete, the system will recreate it, but the first time you run the gallery it can work slowly.

It’s also worth checking the Download folder. Browsers and instant messengers often save APK installation files that have been installed for a long time, or documents that you no longer need, which are “dead cargo” that are easiest to remove through a standard Explorer.

Duplicates, similar photos and "dead" files

One of the main reasons for space shortages is duplicates. MIUI and HyperOS have built-in search for similar photos, but it doesn't always work perfectly. Often, the gallery has a series of identical shots taken in "serial shooting" mode, or screenshots that you took a year ago and forgot.

Use the Gallery app → Album tab → scroll down to Similar Photos. The system will suggest combining duplicates or removing blurred images. It's a quick way to free up a few gigabytes without installing additional software.

In addition to photos, documents are duplicated. When working with office files, we often save versions of "Contract new", "Contract new final", "Contract exact final". Cleaning up the Documents folder and deleting old versions is a great habit for maintaining the system clean.

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Regularly cleaning duplicates and similar photos is more effective than deleting rare large files, and the cumulative effect of thousands of small copies is huge.

Tools for deep cleaning and optimization

If there is not enough built-in tools, specialized utilities come to the rescue, but be careful: many "cliners" are themselves garbage, showing ads and collecting data, and use proven solutions such as Files by Google or SD Maid (for advanced users).

Files by Google is a great content analysis tool and offers to remove old screenshots, memes from WhatsApp and long-unused apps.It's a safe and easy tool that doesn't overload the system.

For those who are not afraid of technical details, there is the possibility of connecting the phone to the computer and conducting a review through ADB (Android Debug Bridge), which allows you to delete the system cache and pre-installed applications (bloatware), which can not be removed in the usual way.

adb shell pm list packages -3

This command will show you a list of all third-party applications.


which can be safely removed to free up the space.

However, the most effective method if the phone is critically clogged is a full factory reset with a pre-backup, which is guaranteed to remove all the accumulated over the years of use of "tails" and file system errors, returning the device to factory speed.