What is the memory in the Xiaomi phone: detailed analysis and cleaning methods

You’ve noticed that the memory is on your Xiaomi (be it a Redmi Note). 12, POCO X5 or Mi 11) It fills up at an alarming rate, even though you've barely installed anything, or it shows that everything is free. 2-3 GB 128 GB, but don't you understand where the rest of us went? This problem is familiar to most Xiaomi smartphone owners. MIUI — The company shell, which is known for its "appetite" to the storage.

In this article, we will not just list the standard tips like “clean the cache”, but will understand in detail: what exactly occupies memory in Xiaomi phones, why even after deleting files, space is not freed up, and how to find and delete hidden “junk” data that are not freed up. MIUI It doesn't show in a standard file manager. We'll analyze the storage structure, look at the specific features of different versions. MIUI 12-14, And we'll give you a checklist for deep cleaning, without risking losing important data.

1.Memory Structure in Xiaomi: What Takes Place

Xiaomi phones have a few key sections of memory, and not all of them are available to the user to view through standard tools.

• 📁 System files MIUI — It takes 8 to 15 GB depending on the version of the shell, which includes pre-installed apps, Android kernel, drivers and service data.
• 🗑️ Application cache and systems are temporary files that should be automatically cleared, but often remain “dead cargo.” MIUI cache can take up to 5-7 GB, if it's not cleaned for years.
• 📸 Media files – photos, videos, music and documents you see in the gallery, but Xiaomi additionally creates thumbnails (.thumbnail), backups and hidden folders (for example, MIUI/Camera or DCIM/.thumbnails).
• 🤖 Application data – save games, database messengers (for example, Telegram or WhatsApp can weigh on the Internet) 1-2 GB each), cache cards in Google Maps or Yandex.Navigator.
• 🔄 System updates — MIUI Downloads update packages (weight) 1.5-3 GB) and store them in /data/ota_package, even after installation.
• 🔒 Hidden sections — /vendor, /recovery, /boot and others that are not displayed in the conductor, but occupy 1-2 GB.

Xiaomi has a feature called file duplication, such as photos that can be stored simultaneously in the same file. DCIM/Camera (gallery) and in MIUI/Gallery/cloud (for cloud synchronization, and music in Music and in MIUI/Music. The standard "memory analysis" in MIUI Often shows an incomplete picture, hiding service files.

2. How to check what is occupied by memory: hidden tools MIUI

Standard Settings Pathway → The phone. → Memory only shows general statistics, but it doesn't detail which files are taking up space. To get a complete picture, use these methods:

Method 1: Built-in analyzer MIUI (covert)

1. Open Settings. → Memory.

2. tap on the memory schedule 3 times in a row - an extended analyzer will open (does not work on all versions). MIUI).

3.In the Other Files section, you will see hidden folders that are not usually displayed.

Method 2: Root-rights conductor (without root)

Install the MiXplorer file manager (available on the 4PDA) and enable the display of hidden files (Settings) → Show hidden files. Go to the root directory (/) and check the following folders:

• 📂 /data/app — installed applications (here you can find "zombie" applications that are not removed by standard means).
• 📂 /data/data — App data (e.g., TikTok cache or Instagram cache can weigh several gigabytes).
• 📂 /sdcard/Android/obb — Game files (e.g. Genshin Impact or Call of Duty Mobile download data here by weight) 2-4 GB).
• 📂 /sdcard/MIUI — Service shell files, including backups and logs.

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If in a folder /data/log files with the.log or.txt extension are larger 100 MBs -- they can be easily deleted. These are system logs that you can easily delete. MIUI does not clean automatically.

Method 3: ADB-deep-analysis teams

Connect the phone to the PC and perform in ADB Shell's next teams:

df -h # Shows the use of memory by section


du -sh /data/* | sort -rh | head -n 10 # Top-10 folders that are located in /data




ls -la /sdcard/ | grep "^d" # List of all folders on internal storage

These commands will help you find the "heavy" folders that are not visible through the GUI. /data/media/0/ You can also download temporary files from Xiaomi Cloud or Mi Video.

3. Top.-5 "The invisible memory eaters in Xiaomi

Even if you regularly clean the cache and delete unnecessary files, the system remains data that is not available. MIUI It doesn't show in the standard interface:

Special attention should be paid to the.apk and.obb files in the folder. /sdcard/Android/. Many games, for example, PUBG Mobile or Free Fire downloads additional data here, and after deleting the game, these files often remain. /sdcard/Download/ — Here you can find downloaded but forgotten files weighing several gigabytes.

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If the memory is not free after deleting the application, check the folders. /data/data/[name packet] and /sdcard/Android/obb/[Package name - often there are "tails" of data.

4.Why memory is not released after deleting files

You deleted photos, cleared the cache, but the space didn't increase? This is a typical problem Xiaomi has with the features of the file system. F2FS (It is used in most modern models and works MIUI. Here are the main reasons:

• 🔄 Deferred release — MIUI It doesn't immediately update the vacant data. Sometimes you need to reboot or run the sync command in the space. ADB.
• 🗑️ Basket MIUI — deleted files go into the basket (/sdcard/MIUI/RecycleBin/) and take up space before 30 To clear it right away, open the files. → Basket → Clean up.
• 🔒 Reserved space — MIUI It reserves up to 5% of the memory for system needs (e.g. for updates) and this space is not displayed as free.
• 📊 File system errors – if the phone suddenly shuts down while writing files, “broken” sectors may appear that the system flags as busy.

To forcefully update the data on the free space:

1. Connect the phone to the PC and perform in ADB: adb shell su sync df -h
2. If there is no root, reboot your phone – sometimes it helps to refresh your data.

Check the basket. MIUI|Clear the cache in Recovery|Run the sync command in ADB|Check the file systems for errors through PC-->

5. Deep cleaning: step-by-step instructions

If standard methods don’t help, use this algorithm to clean up completely (without losing important data):

Step 1: Cleaning up system debris

1. Install. SD Maid (requires root) or Files by Google.

2. Run a scan for the presence of:

- Residual files (CorpseFinder in the SD Maid).

- Duplicate photos and videos.

- Large files (>100 MB) in folders /Download/ and /DCIM/.

Step 2: Removing the app cache

1. Go to Settings → Apps → All Apps →

2. sort by size and clear the cache from the following applications (they most often take up the most space):

- Google Play Services

Mi Video (cache video can weigh several gigabytes)

Gallery (miniatures and temporary files)

- Telegram/WhatsApp (media file cache)

Step 3: Delete unnecessary system files

With MiXplorer or Root Explorer, remove:

• 🗃️ folder /sdcard/MIUI/Backup/ (If you do not use backup copies).
• 🗃️ folder /sdcard/MIUI/Gallery/cloud/ (cloud-galleries).
• 🗃️ Files in /data/ota_package/ (old-fashioned update packages).
• 🗃️ Logs in /data/log/ and /sdcard/log/.

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Before deleting system folders, back up important data! some folders (e.g, /MIUI/Gallery/) They may contain your photos if synchronization is enabled.

Step 4: Optimizing Storage

1. Move heavy applications to SD-map (if supported): Settings → Annexes → Select an application → Warehouse → Change. → SD-map.

2. disable automatic backup in MIUI: Settings → Additionally. → Backup → Automatic backup.

3. Set up cache cleanup on schedule: Settings → Memory. → Auto Cleaning (Install a Weekly Cleanup).

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If there is still a lot of space left after all the manipulations, consider resetting your phone to factory settings.This is a radical method, but it is guaranteed to clear all hidden files.

6. Specific problems of different Xiaomi models

Some Xiaomi models have unique features that affect memory usage:

• 📱 Redmi Note 10/11/12: Often suffer from folder overflow /data/media/0/MIUI/screenrecorder/ — It stores screen recordings that are not always deleted after export.
• 📱 POCO F3/F4/F5: In these models, the cache of Google Play Services can grow to 2 GB due to aggressive optimization for gaming.
• 📱 Mi 11/12/13: The flagship models are reserved to 10% Memory for system needs (e.g. HyperOS functions) that does not appear as available space.
• 📱 Redmi 9/9A/9C: On these budget models, a bug often occurs when the folder /data/tombstones/ (logs of failures) takes up to 1 GB and does not clean automatically.

For POCO and Redmi with MIUI for POCO Check the folder further. /sdcard/POCO/ — There may be unnecessary files of themes and wallpapers.

7.Prevention: How to prevent memory filling

To prevent memory from running out suddenly on your Xiaomi, follow these guidelines:

• 🔄 Set up automatic cleaning: - Enable Settings → Memory. → Autoclean (set once a week). - In Google Photos, turn on Free up space after uploading photos to the cloud.
• 🚫 Limit the cache of applications: - In Telegram: Settings → Data and memory → Limit memory usage. - On WhatsApp: Settings → Warehouse → Storage management (remove heavy media files).
• 📁 Use cloud services: - Move photos to Google Photos or Mi Cloud (but remember that you can use the same service.) MIUI Can duplicate files when synchronized).
• 🛑 Block background activity: - In Settings → Battery → Power saving mode limit background work for unnecessary applications.

It is also useful to check folders once a month. /Download/ and /DCIM/ Many users forget to delete downloaded files. APK, archives or duplicates of photos that take up gigabytes.

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In Mi Video and Gallery, disable Auto Download Previews, which will reduce the number of temporary files you create. MIUI.

8. Frequent questions and answers

If none of the tips helped and the memory is still full for no apparent reason, it’s worth considering a factory reset or contacting a service center – perhaps the problem is a hardware drive failure.

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Regular Memory Check (once in a week) 1-2 The cache cleaning will help to avoid the situation when the place ends at the most inopportune moment. MIUI and third-party applications for deep analysis.