Xiaomi smartphone owners often face a sudden notification that internal storage is overcrowded, which leads to slowdowns, inability to install new apps and problems when shooting videos. MIUI, based on Android, over time accumulates a lot of temporary files that are not deleted automatically.
Memory cleaning is not just about removing photos, but a complex process that involves working with application cache, system logs and duplicate files. Proper storage management allows you to extend the life of the drive and keep the device at a high level even after several years of operation.
In this article, we’ll look at proven ways to free up space that work on all current models, from budget Redmis to flagship series, and learn how to distinguish system debris from important data and use built-in optimization tools as efficiently as possible.
Analysis of storage occupancy through settings
The first step before action is to make an accurate diagnosis. There's a built-in tool in the MIUI shell that visualizes the distribution of data. Go to Settings → About Phone → Storage to see a detailed map of the occupied space.
Here, the system groups files into categories: apps, images, videos, documents, etc. Often it turns out that the lion's share of space is occupied by messengers like Telegram or WhatsApp, which cache all the media files viewed, and category analysis helps to understand where the bulk of the excess information is hidden.
Note the Others section, which often includes streaming cache, offline navigator maps, and temporary update files, and if this category takes up a disproportionate amount of space, manual folder verification through the file manager is required.
- 📊 Check the total amount of free space and the critical threshold in the 1-2 GB.
- 📂 Study the distribution by file type to identify heavyweights».
- ⏳ Pay attention to the size of the “Applications” section, which is often inflated.
Don’t ignore the system’s warnings about low memory. When less than 10% of the total is free, the speed of writing data to flash memory drops significantly, causing “freezes” and twitching animations.
Use of the built-in "Security" application
The fastest way to clean up garbage is to use the standard Security app, which is preinstalled on every Xiaomi device. It contains the Cleanup module, which automatically scans the system for temporary files, remnants of deleted applications and advertising debris.
Run the scan and wait for the analysis to be completed. The system will suggest removing files that do not affect the operation of the OS. However, be careful: sometimes the list gets thumbnails of the gallery or cache of frequently used applications, which will lead to their re-download from the Internet.
⚠️ Warning: Do not use Deep Clean indiscriminately unless you are sure of the content, sometimes with important documents or recent photos you planned to keep.
For a more subtle setup, go to the Garbage Cleanup section inside the app and select categories manually.You can exclude certain folders from the scan so you don't accidentally delete progress in games or customize working applications.
☑️ Daily rapid cleaning
Regular use of a standard cleaner helps keep the system on track, and it is enough to run it once a week to prevent the accumulation of a critical mass of temporary files.
Cleaning the cache of messengers and social networks
Messengers are the main memory eaters on modern smartphones. Telegram, WhatsApp and Viber store every photo and video viewed in local memory. Without setting up, these applications can take up tens of gigabytes of space.
In Telegram, you need to go to Settings → Data and Memory → Memory Use. It is recommended to limit the cache of media files by setting a period, for example, “3 days” or “1 week”, and it is also useful to enable automatic cleaning so that the application itself deletes old files.
On WhatsApp, the path is slightly different: Settings → Data and Storage → Storage Management. Here you can select specific chat rooms and delete only heavy videos or documents, leaving text messages intact.
| Annex | The path to cleanup | Recommended cache limit | Risk of data loss |
|---|---|---|---|
| Telegram | Settings → Data and memory | 500MB - 1GB | Minimum (media in the cloud) |
| Settings → Data and Storage | No limit (manual cleaning) | Medium (requires a backup copy) | |
| Viber | More. → Settings → Memory. | Clear the cache | Minimum |
| Phone settings → Applications | Clear the cache | Low (account will be released) |
What to do if the cache is not cleared?
Remember that clearing the cache does not delete your correspondence if it is stored on a server or in a local message database, only downloaded media files are deleted, which can be re-downloaded if necessary.
Removing duplicates and heavy files manually
Automatic systems don't always see files you've downloaded and forgotten. Use the built-in Explorer or Files app to find those heavyweights. Sort files by size to find 4K videos or gigabyte-size archives.
Often in the Download or Download folder, installations accumulate APK-files that have been installed for a long time. You can delete them safely. DCIM →.thumbnails, where you store sketches of photos – this file can grow to incredible sizes.
You can use third-party tools from Google Play to find duplicate photos, but the standard Xiaomi gallery can find similar photos. In the album "Recommendations", a paragraph "Similar photos" often appears, where the system suggests leaving the best frame and removing the rest.
- 🗑️ Remove old screenshots and screen recordings that are no longer needed.
- 🎬 Check the Recycle Bin folder in the gallery – files are stored there for 30 days.
- 📦 Unpacked archives ZIP and RAR can be removed after use.
⚠️ Before removing files from system folders (Android, data, obb), make sure they are not related to games or important applications, otherwise progress may be lost.
Manual sorting takes longer than automatic sorting, but it gives you a guaranteed result, you know exactly what you're deleting, and you don't risk losing important documents.
Transferring data to cloud services and PCs
If internal memory is full of photos and videos, the best solution is to transfer them to the cloud. Google Photos offers compressed storage without loss of quality, taking up the minimum space on the device after synchronization.
Xiaomi ecosystem users can use Mi Cloud, which synchronizes contacts, messages, notes and gallery, and enable Storage Optimization to upload original photos to the cloud and keep smaller copies on the phone.
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Use the “Free Space” feature in Google Photos after sync is complete, which automatically removes photos and videos from your device that are already stored in the cloud.
Regularly transfer archives to your computer or external hard drive. Connect your phone to USB-Cable in the "File Transfer" mode and copy folders DCIM And Pictures on the computer, and that would free up gigabytes of space for new images.
Cloud storage is not only a way to save space, it's also a way to keep data safe, and even if you lose or break your smartphone, your memories will remain intact.
Removal of unused applications and their residues
Apps you haven't used in more than a month should be removed. Go to Settings → Apps → All apps and sort the list by frequency of use or size. Heavy games often weigh a few gigabytes and take up space even in the plain.
Once an application is removed, it may still have folders and settings files in the system, and to find them, use the file manager and check the root folder for folders with the names of the remote programs, and the residues are often in the Android/data folder.
For system applications that cannot be removed in the standard way (like Google or Mi preinstalled services), you can use a shutdown. Go to the app properties and click "Disable" to hide the application and stop its processes, freeing up some RAM and some space.
- 🚫 Remove games that haven’t been played for more than 30 days.
- 🔄 Replace heavy apps with Lite versions (like Facebook Lite).
- 🛑 Disable system applications that you don’t need.
💡
Regularly auditing installed applications is the easiest way to keep your phone clean without using third-party software.
Remember to check the list of applications with administrator rights. Sometimes a malicious or simply poor-quality application masquerades as a system and prevents its removal. Disable administrator rights in the security settings to remove it.
Resetting to factory settings as a radical method
If none of these methods worked and the memory fills up on its own, it may have accumulated a critical amount of error or fragmentation, in which case a complete reset to factory settings helps.
Before this procedure, make sure to make a full backup of all important data to your computer or the cloud. Reset will delete absolutely everything: contacts, photos, apps and settings. The phone will return to the state of “from the store”.
To perform the reset, go to Settings → About Phone → Settings Reset → Erase all data. The process will take a few minutes, after which the phone will restart and require initial setup.
⚠️ Warning: Make sure the battery is at least 50% in charge before resetting. interruption of the process during the formatting phase may result in the device being inoperable.
Why does the memory fill up quickly after reset?
Once you reset, you'll be surprised how much space you'll have, and the system will run faster, and there will be no unnecessary processes, but to keep the problem from recurring, try not to install questionable applications and clean the cache regularly.