Xiaomi phone memory is full: how to clean internal and external storage correctly

Your Xiaomi, Redmi or Poco constantly shows a notification “Memory is full” even though you haven’t installed anything in a long time? the system is slowing down, photos are not saved, and applications are crashed with an error “Not enough space”? The problem is not only in your files – up to 30% of memory on Xiaomi is occupied by hidden system debris, MIUI cache and duplicate media files that are not visible in the standard Explorer. In this article, we will discuss 7 working methods of cleaning memory – from basic to advanced, including hidden MIUI functions and third-party tools.

Many users mistakenly think that it is enough to delete a few photos or clear the cart - but this solves the problem only by 10-15%. The main memory eaters on Xiaomi: app cache (up to 5-8 GB), residual files after deleting programs, duplicates in the gallery (created automatically when editing), system logs and MIUI updates that are not deleted after installation. We will show how to find and delete all this without root rights and loss of important data.

1. Diagnostics: what exactly takes up memory on Xiaomi

Before you clean it, you need to understand which files are clogging the storage. MIUI has an inbuilt analyzer, but it doesn't show everything.

Open Settings → About Phone → Memory. Here you will see the allocation of memory by category: System, Applications, Multimedia and Other. Click on each category to see the details:

• 📱 System system (10-15 GB: This is where the files are stored MIUI, Android kernel and updates. You can't manually delete!
• 📦 Appendices: Shows the weight of installed programs + Often, there's gigabytes of unnecessary data hidden here.
• 📸 Multimedia: photos, videos, music. Check carefully for duplicates and failed shots.
• 🗑️ Another, the most insidious partition, where you can hide temporary files, logs, downloads and debris from remote applications.

For more in-depth analysis, use third-party tools: Files by Google (showns junk files), SD Maid (finds residual files after uninstallation), or DiskUsage (visualizes occupied space). These applications often find 2-5 GB of unnecessary data that is not visible in the standard Xiaomi Explorer.

2. Cleaning the application cache and system

Cache is a temporary file that creates applications to speed up work, accumulate over time and can take up to 10 GB (especially in instant messengers, social networks and games), clearing the cache safely will not delete your data (logins, messages, progress in games), but will free up space.

Ways to clean up cache on Xiaomi:

• 🧹 Clearing the cache of individual applications: Go to Settings → Annexes → App management, select a program (like Telegram or TikTok) and click “Clear Cache.” To bulk clean, click on the three dots in the upper right corner and select “Sort by Size” so you’ll see the most “glutty” ones».
• 🗑️ Cleaning the system cache: In Settings → Memory. → Clean up click "Clean" (this will remove the cache of all applications at once). For deep cleaning, use the "Deep Clean" mode - it finds up to 1-2 GB of additional garbage.
• 🔄 Automatic Cleanup: Enable the option in Settings → Memory. → Autoclean.The system will remove the cache once a week, but it doesn't work perfectly - it's better to clean it manually.

Delete the cache of messengers (Telegram, WhatsApp, Viber)

Clear the cache of social networks (TikTok, Instagram, Facebook)

Check out games (especially with heavy graphics)

Launch a deep cleanup in MIUI

Restart the phone after cleaning-->

⚠️ Warning: Don't confuse "Clear Cache" and "Clear Data"! The second action will delete all your settings and files in the app (such as WhatsApp correspondence or saves in games).

3. Removal of duplicates and unnecessary media files

The Xiaomi gallery automatically creates duplicate photos when editing, sending in messengers or backing up, and it also accumulates screenshots (Screenshots folder), uploaded images from the Internet (Download folder), video thumbnails (Hidden folder.thumbnails).

How to find and remove excess:

1. Built-in MIUI tool: Open Gallery → Albums → Duplicates. The system will automatically find duplicate photos and prompt them to be deleted. Also check folders: DCIM →.thumbnails (miniatures), Pictures → Screenshots (screenshots over 30 days), Download (browser downloads).
2. Third-party applications: Google Photos (finds duplicates and offers to archive), Files by Google (shows large and unnecessary files), Duplicate Files Fixer (a specialized tool for finding duplicates).
3. Manual Verification: Connect your phone to your PC and use Windows Explorer or Total Commander to search for files by extension:.jpg,.png (images),.mp4,.mov (video),.apk (installing files of remaining applications).

⚠️ Before mass removal of photos, check if backup is enabled in Google Photos or Mi Cloud. otherwise you may accidentally erase valuable photos that will not recover.

4.Cleaning the "Other" section - Hidden MIUI garbage

The “Other” section in Xiaomi memory settings is a real “black hole”, which can occupy from 5 to 20 GB. Here are stored: system logs (/data/log), error dumps (/data/tombstones), residual files of remote applications, MIUI update cache (/cache), temporary bootloader files.

How to clean this vault:

For cleaning without root rights:

1. Install SD Maid and give it access to memory.

2. Run the scan in the "CorpseFinder" section (finds the remnants of remote applications).

3. Under SystemCleaner, select Logs and Residual Files.

4. Confirm removal.

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If the "Other" section is cleaned up quickly again, check the apps for viruses with Malwarebytes or Dr.Web Light.Some Trojans create hidden files that take up gigabytes.

5.Storage optimization: file transfer and cloud services

If internal memory is constantly filling up despite regular cleaning, consider expanding storage options:

• 📁 Transfer of applications to SD-map: B MIUI It doesn't work for all applications, but you can migrate some of the data. → Annexes → Select a program → Warehouse → Change. → SD-map. ⚠️ Not all applications support this mode, and the speed of work with the SD-map.
• ☁️ Cloud storage: Google Photos (unlimited space for compressed photos), Mi Cloud (5 GB free for Xiaomi owners), Yandex Drive (10 GB when registering.
• 🔄 External drives: Use OTG-cable for connecting a flash drive or hard drive. MIUI They are defined as a removable disk and can be used to store media files.

To automate file transfer, install FolderSync or Automate – these apps can configure rules for moving files older than 30 days to the cloud or to the cloud. SD-map.

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Transfer of applications to SD-The card is not always effective: many programs (especially games) require fast internal memory to work properly. SD-media card.

6. Resetting to factory settings is a last resort

If all the methods are tried and the memory is still full, then you have a hard reset, which will delete all the data, including apps, photos and settings, but will return the phone to a "clean" state. Use this method only as a last resort!

Step-by-step:

1. Save important data: Move photos, contacts and files to your PC or cloud. Contacts can be exported to VCF-file through Contacts → Settings → Imports/Exports.
2. Reset: Go to Settings → About Phone → Settings Reset → Erase all data. Enter a password (if installed) and confirm.
3. Reset recovery: When you first set up, select recovery from a backup (if you have it in Mi Cloud or Google Account). Install applications gradually to avoid refilling the memory.

⚠️ Note: Some Xiaomi models (e.g. Redmi Note 8 Pro, Poco) X3) After the reset, you may need to re-unlock the bootloader if you've done it before!

7.Prevention: How to prevent memory filling

To prevent the problem from returning, follow these rules:

• 📵 Limit the cache for social networks: In Settings → Annexes → [Select the application] → Memory set a cache limit (e.g. 500MB for Instagram).
• 🔄 Set up automatic cleaning: Enable in Settings → Memory. → Autoclean and set a schedule (e.g. once a week).
• 📥 Control Downloads: Regularly clean the Download folder and set the browser to save files to the download. SD-map.
• 📸 Optimize photos: In Google Photos, enable “Saving space” (photos will be saved in compressed form).
• 🛡️ Remove unused apps: Programs like cleaners or games you haven’t played in a long time can take up to a few hours. 1-2 GB.

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If you often shoot high-resolution (4K) video, set your camera to 1080p recording – this will reduce file size by 3-4 times without significant quality loss.

FAQ: Frequent questions about Xiaomi memory cleanup