Xiaomi phone memory is overflowing: a complete cleanup guide

Xiaomi’s reporting of space shortages often comes at the most inopportune moment: while shooting an important video or setting up a critical security update.The MIUI system or the new HyperOS aggressively alerts the user as soon as the free space drops below the critical 1GB mark. Ignoring these signals causes the smartphone to start running slower and some apps to stop saving data.

Why is this happening so fast? Today's apps are overgrown with gigabytes of cache, and high-resolution photos are huge. Owners of Redmi and Poco devices face this problem regularly, since basic firmware versions often occupy a significant portion of the built-in storage. You need to understand the difference between user files and system debris to operate efficiently.

In this article, we will look at proven ways to free up space, from regular tools to hidden functions of the engineering menu, you will learn which folders can be removed painlessly, and which can not be touched categorically.

Analysis of storage occupancy through settings

The first step is always to diagnose. Don't blindly delete files without knowing what's taking up space. There's a powerful analyzer built into the MIUI shell that visually shows the memory allocation. Go to Settings menu → About phone → Storage to see a detailed employment map.

The system will divide the data into categories: apps, images, videos, documents, etc. Often it turns out that the lion’s share of the space is occupied by messengers like Telegram or WhatsApp, which for years copy media files, and a significant amount can be occupied by the “Other” section, where the remnants of deleted programs and temporary update files are hidden.

Pay attention to the "Applications" item. When you click on it, you'll see a list of programs sorted by size. Deleting the heavy app cache can instantly free up 2 to 5 GB of space, which often solves the memory shortage problem. Don't rush to delete the application itself if you need it - just clear its data or cache.

Use of the built-in Security application

Each Xiaomi smartphone has a system tool called Security preinstalled, which is not just an antivirus, but a processor to service the system. Launch the app and select Cleanup. The scanner will automatically find temporary files, advertising junk and uninstall process remnants.

After the initial scan, the system will suggest removing the debris found, but for deep cleaning, you need to click on the garbage icon or go to the purifier settings, and you can set up automatic cleaning when you reach a certain occupancy threshold, and using this feature regularly prevents critical overflow.

It is important to distinguish between Safe Cleaner and Deep Cleaner. The second option allows you to delete large files, duplicate images and rarely used applications. Be careful: the algorithm may suggest removing files you need, so always check the list before confirming. The system flags files that have not been opened for more than 30 days, which is a good indicator for deleting.

Cleaning up garbage in popular messengers

Messengers are the main memory eaters on Android. Telegram, WhatsApp and Viber by default store all received photos and videos in the phone gallery. This creates duplicates: the file lies in both the chat and the shared folder of media files. Cleanup must be done inside the applications themselves.

In Telegram, go to Settings → Data and Memory → Memory Use. You need to limit the cache size and autodelete media files. You should set the option “Storage media” to “3 days” or “1 week” This will not delete files from the server, but will free up space on the Xiaomi device.

⚠️ Note: Before clearing messenger data, make sure that important correspondence and files are stored in the cloud or exported. Clearing the application data (not the cache) will result in logging out of your account and losing your local message history.

For WhatsApp, the path is slightly different: Settings → Data and Storage → Storage Management. The app will show files larger than 5MB and chat rooms that take up the most space. You can selectively remove heavy videos from specific dialogues without removing all correspondence in its entirety. This is especially true for workgroups where presentations and video reports are constantly dropped.

Work with Gallery and Cloud Services

High-resolution photos and videos eat up gigabytes quickly. If Xiaomi's phone is full, the first thing to do is check out the albums "Screenshots," "Video" and "Recent," often containing thousands of unnecessary screenshots or blurry photos that are pathetic to delete but also unnecessary.

Use the “Free Space” feature in the MIUI Gallery. It automatically finds similar images, documents and screenshots, prompting them to be deleted, and it’s also worth turning off sync with Google Photos or Xiaomi Cloud if you’re not using the cloud so you don’t store copies in two places.

Consider migrating your photo archive to an external storage medium or computer. Modern Redmi Note smartphones and Xiaomi flagships do not support memory cards, so cloud services or a hard drive remain the only option for long-term storage. Setup automatic upload to Google Photos and then delete from the device ("Free space") is the most effective method.

Removing system updates and APK packages

After each update of the system MIUI or HyperOS, the phone has an installation package that you don't need anymore because it's already updated, but it takes a lot of time. 3 before 6 GB. You can find it through the file manager on the way Internal memory → MIUI → downloaded_rom.

It's also worth checking the Download folder. Browsers and download managers often save application installers (.apk files). Once you install the program, this file becomes useless garbage. Delete old versions APK-Files: A secure operation that returns precious megabytes.

Some users try to delete folders with system applications names. Deleting the contents of Android/data or Android/obb folders can cause game progress or malfunction of Google services. Clean only what you are sure of, or use regular cleaning tools.

Advanced Methods: ADB and Developer Mode

For advanced users who don’t have a lot of standard methods, there is an option to clean through ADB (Android Debug Bridge), which allows you to remove system debris and cache that is not available through the normal interface, and this will require a computer and enabled debugging over USB in the Developer Menu.

With the adb shell pm trim-caches 999999999 command, you can force the cache of all applications to be removed at once. This is especially useful when the phone is so crowded that even the menu does not open normally.

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Use the adb shell dumpsys diskstats command to see detailed statistics of disk space usage by each application, including hidden partitions that the standard analyzer does not see.

Another method is to disable heavy system applications that you don't use (e.g. Mi Video, Mi Music, if there are analogues). Through ADB, pm uninstall-k --user 0 removes the application for the current user without affecting the system partition, which frees up space and reduces the load on RAM.

⚠️ Attention: Use ADB Removing critical system packages (such as those associated with the phone or settings) can lead to a cyclic bootloop.

Preventing overcrowding in the future

To keep the problem of “phone memory is full” from returning, you need to change your Xiaomi usage habits. First, set a rule: once a month, audit the gallery and download folder. Second, set up automatic cleaning in the Security app for a weekly launch.

Stop storing music and movies locally unless you need them. Streaming services allow you to listen to music online with only a small buffer cache. Store locally only what you really need without the Internet.

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Regular cleaning of the messenger cache and transferring photos to the cloud solve 90% of memory problems on Xiaomi smartphones.

Keep an eye out for system updates. Xiaomi engineers are constantly optimizing the file system in newer versions of MIUI and HyperOS, implementing more efficient compression and memory management algorithms. Sometimes a simple firmware update solves the problem of inflating the system partition.