Redmi smartphones have long proven to be reliable budget devices, but even they eventually start to work slower due to overcrowded storage. When space gets to zero, the MIUI system starts blocking messengers, and the camera refuses to take new pictures, because the operating system vitally needs a backup for temporary files and correct processes.
Owners of the Redmi 8 model often face the problem of lack of space, since the basic version of the device has only 32 GB of internal memory, some of which is occupied by system files. You can solve this problem using software methods without resorting to complex technical manipulations or buying a new gadget. Competent cleaning will not only free gigabytes, but also return the former responsiveness of the interface.
Next, we’ll look at proven methods for freeing up space, from standard system tools to manually removing hidden digital debris, and it’s important to understand that regular maintenance of the device extends its lifespan and ensures comfortable use.
Analysis of storage occupancy and search for large files
Before you delete anything, you need to know exactly what is taking up the lion's share of the volume available. The MIUI has a powerful data visualization tool built in that allows you to instantly see the memory distribution, and you get a detailed breakdown by category: applications, images, videos, documents and system debris.
To start the analysis, you need to go to the Settings → Memory menu or use the standard Security app. The system automatically scans all the sections and gives a report. Often it turns out that a significant part is occupied by long-awaited high-resolution movies or old chat backups that the user has already forgotten about.
Special attention should be paid to the Downloads folder, where APK installation files are often downloaded after updating programs. These files are no longer needed and are deleted safely. It is also worth checking the messenger folders, which have the property of accumulating gigabytes of media files over the years.
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Visual analysis of the storage allows you to find "heavy" files that are not visible during a normal viewing of the gallery.
Use of the built-in "Security" application
The easiest and safest way to free up space is to use a regular tool from Xiaomi developers.Security is deeply integrated into the system and has access to hidden cache that is not deleted through the standard file manager.
Launch the app and click the Clean button, and the system will suggest removing files that don't affect the program, but don't stop at cleaning it quickly. There are additional tabs inside the Cleanup menu, such as Big Files, Duplicates, and Unused Apps, which are the main sources of memory overflow.
The duplicate search feature is particularly useful for those who take a lot of photos, and the algorithm finds the same images and suggests that you delete the extra copies, leaving the original, and this allows you to safely save several hundred megabytes without losing important information.
- 🧹 Regularly running a full cleanup removes temporary system and browser files.
- 📱 Removing unused applications through the built-in manager frees up space and reduces the processor load.
- 🗑️ Finding duplicate photos helps to quickly remove repetitive screenshots.
- 📦 Analysis of “heavy” files allows you to find forgotten high-resolution videos.
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Use the Deep Clean feature in the Security app once a week to keep the system in good shape.
Working with the cache of applications and social networks
Social networks and instant messengers like Telegram, WhatsApp and VK are the main consumers of memory on modern smartphones. They store every picture, video and voice message viewed in cache to download them faster when reopened. Over time, this cache can reach 5-10 GB, which is critical for Redmi 8.
There are two ways to clear the cache. One is through the settings of the app itself. For example, on Telegram, go to Settings → Data and memory → Memory Use and click Clear Cache. This is safe, because your photos and correspondence will remain on the server and download again if necessary. The second way is through the App System Menu → All Apps → Application Selection → Memory → Clear cache.
⚠️ Warning: Don’t confuse the Clear Cache button with the Clear Everything button (or Erase Data) and the second option will completely uninstall the app along with your correspondence history and authorization if there is no backup.
For instant messengers like WhatsApp, the situation is more complicated because they store media files in shared memory. You should set up automatic cleaning of media files over a certain period. In chat settings, you can set a limit to allow photos and videos to be deleted automatically, for example, once a month.
Removal of system debris and residual files
When you delete Android apps, you often have tails — empty folders, configuration files, and error logs — that are not necessary for the system to work, but they keep taking up space, and manually searching for them is long and risky, because you can accidentally delete the system library.
You can use a file manager with an analysis feature to find such files, such as Xiaomi’s built-in Explorer or third-party utilities like Files by Google. Look for folders with names of remote games or programs. It’s also worth checking the root of internal memory for files with the.log or.tmp extension that are created by various processes.
The file deserves special attention. MIUI at the root of the repository where error reports can accumulate (folder) debug_logs). If you're not a developer and you don't send error reports to Xiaomi, you can delete these files. They're automatically created when the system crashes.
| Type of data | Location. | Can I remove it? | Risk of data loss |
|---|---|---|---|
| Cash app. | Settings / Applications | Yes. | Low (temporary data only) |
| Files.apk | Download folder | Yes. | No (installation files) |
| Error logs (.log) | folder MIUI / debug_logs | Yes. | No. |
| tumbnails | DCIM /.thumbnails | Yes (automatically) | No (preview photo) |
| System files | Android / data | No. | High (app failure) |
Transfer of data to SD-map and cloud services
Redmi 8 supports microSD cards up to 256 GB. This is the most efficient solution for storing photos, videos and music. By transferring media to an external drive, you will free up internal space, which is critical for installing updates and running applications.
To transfer files, use a file manager. select the desired folders (for example, DCIM, Pictures, Music, select Move and point the way to SD-After porting, many applications, such as a camera or voice recorder, can continue to save files to internal memory by default. This must be changed in the settings of the application itself by selecting "Save to the default memory". SD-map».
An alternative to a physical map is cloud storage, such as Google Photos or Yandex.Disk. Setup Autoboot will automatically transfer new images to the cloud and delete them from the device, freeing up space. Important: before removing the originals from your phone, make sure that the sync is successful and the files are available in the cloud from another device.
☑️ Checklist for working with memory
Radical measures: reset to factory settings
If none of the above methods worked and the phone continues to signal a lack of space, the last option is a full reset, which returns the device to the “out of the box” state, removing absolutely all the data, settings and applications of the user.
A complete backup copy must be created before the procedure begins. MIUI there is a built-in application "Mi Backup" (Reservation), which allows you to save contacts, SMS, call log and system settings on the phone SD-You have to copy your photos and documents to your computer or to the cloud by hand.
To perform the reset, go to Settings → About Phone → Settings Reset → Erase all data. The device will request confirmation and password from your Mi or Google account. Once you reboot, you will get a clean system with maximum free memory.
⚠️ Warning: The process of complete reset is irreversible. If you have not made a backup, it will not be possible to restore contacts and photos after reset%.
What if the memory is filled immediately after resetting?
Preventing overcrowding in the future
To keep the problem from coming back in a month, you should change your smartphone habits. Make a rule: check the Downloads folder once a week and delete the unnecessary ones. Turn off autoloading social media videos, if you don't use Wi-Fi, this will save not only memory, but also traffic.
It is also recommended to update apps regularly through Google Play.Developers often optimize code by reducing cache size and fixing memory leaks.Older versions of programs may work less efficiently and take up more space.
Using lightweight versions of social media apps can significantly reduce the system load, taking up less space and consuming less resources, which is ideal for low-end models like the Redmi 8.