The situation where Xiaomi Redmi 8 suddenly reports that there is not enough memory, familiar to many users. This device, despite its budget roots and popularity, often suffers from a lack of free space in the system partition, especially after several years of active use. MIUI operating system, overgrown with cache, logs and temporary files, begins to work slower, and installing new applications becomes impossible.
The user is faced with constant notifications that block normal use of the gadget: cameras refuse to shoot videos, messengers stop downloading media files, and the browser may not open pages at all. Internal memory fills up faster than you can delete old photos, creating a vicious circle of problems.
In this article, we will discuss in detail why there is a “lack of memory” error on the Redmi 8 model and how to effectively free up gigabytes of space. We will look at both standard cleaning tools and hidden system functions that will help return the smartphone to performance without buying a new device.
Space analysis: What takes place
The first step to solving the problem is to understand where precious gigabytes go. Redmi 8 owners are often surprised to find that the "Other" or "System" section has grown to obscene size. The standard storage analyzer in MIUI gives only a general idea, but does not always show the real "eaters" of the place.
The main culprits are social media cache, remnants of deleted applications and system logs of updates. Garbage files can take up to 30% of all available volume if not cleaned regularly, and you should also pay attention to the MIUI folder, which often stores duplicate screenshots and edited photos.
For deep analysis, we recommend using the built-in Cleanup tool. Go to Settings → Memory and wait for the scan to be completed. The system will suggest removing temporary files, but be careful: sometimes important authorization or game saving data is hidden under the guise of garbage.
⚠️ Before mass clearing the messenger cache, make sure you have a backup of important correspondence, as clearing the cache in some versions of Android may affect media files.
Use of the built-in "Security" application
In the shell. MIUI It has a powerful tool called Security, which includes the Cleanup feature, which is the first line of defense against memory overflow on Xiaomi Redmi 8, APK-installers and residual debris.
Launch the app and press the Cleanup button. After the initial scan, the system will show the amount of garbage available to remove. However, take your time to press the remove button immediately. Click on the Garbage to see the detail. Here you can selectively remove the app cache, which often takes up lion's share of the space.
☑️ Daily cleaning of Redmi 8
Special attention should be paid to the section “Big files”, often users forget about downloaded movies or archives that lie dead for months, deleting such files is the fastest way to free up space, and in this menu you can find duplicate photos that may have formed when synchronization failed.
Deep Cleaning allows you to find forgotten files in folders like WhatsApp or Telegram, which stores all the images and videos you've viewed from your channels, even if you haven't saved them manually, and cleaning those folders regularly through a regular tool works wonders.
Cleaning the cache of messengers and social networks
The most voracious apps on any Android smartphone, including Redmi 8, are instant messengers. Telegram, WhatsApp, Viber and social networks accumulate gigabytes of data. Pictures, voice messages, videos and stickers are stored in the device's memory by default, unless configured otherwise.
In Telegram, for example, the cache can grow to several gigabytes. To fix this, open the app's settings, go to Data and Memory → Memory Use. Here you will see the "Clear Cache" button. Don't be afraid to press it - your correspondence and important files will remain on the server and re-download if necessary, and temporary files will be deleted.
- 📱 WhatsApp: Settings → Data and storage → Storage management: You can delete files larger than 5MB or media files from specific chat rooms.
- ✈️ Telegram: Settings → Data and memory → Use of memory → Clear cache.It is recommended to enable autodelete cache after 3 days.
- 📘 Viber: Additional → Settings → Memory. → Clear the cache. Also check the Viber gallery in the file system.
- 📸 Instagram: Phone settings → Annexes → Instagram → Memory. → Clear cache (not “Erase data” to avoid logging out of your account).
It's important to distinguish between Clear Cache and Delete Data. The first one deletes temporary files, the second one completely resets the application to a post-install state, requiring re-authorization, and we only need the first action to free up space.
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In Telegram settings, enable Autodelete Media by setting a limit of 3 days or a week, which will prevent the accumulation of gigabytes of garbage in the future.
Working with the file system and the download folder
The Download folder is a black hole where all files downloaded from your browser or received via Bluetooth flow to. On Xiaomi Redmi 8, this folder often contains installation files. APK, which have already been used, PDF-Documents and Forgotten Images.
Open the standard Explorer or Files (Folder icon) to Downloads. Sort files by size or date. Delete all app installers (files with the extension.apk), old documents and unwanted images. Often, you can find 1-2 GB of excess weight here.
| File type | Location. | Can I remove it? | Recommendation |
|---|---|---|---|
| .apk | /Download, /Bluetooth | Yes. | Remove immediately after installation |
| .tmp | Everywhere. | Yes. | Temporary system files |
| .log | /MIUI, /Android | Yeah (caution) | Error Logs Safe to Delete |
| Thumbnail | /.thumbnails | Yes. | Cash miniature, by himself. |
It's also worth checking the DCIM folder. It stores photos and videos from the camera. If you're syncing with Google Photos or the Mi Cloud, the originals can already be saved online, and the phone takes up space. Use the "Free space" feature in the Google Photos app to delete local copies.
⚠️ Warning: When manually cleaning a file system through Explorer, never delete files from Android system folders unless you are 100% sure of their purpose.
Transfer data to memory card and cloud
Redmi 8 has a microSD card slot, which is a lifesaver for owners of versions with 32 GB of internal memory. Transferring media to an external card is the most efficient way to unload the system partition. However, just inserting a card is not enough.
To transfer photos and videos, open Explorer, select files, click Move, and select an SD card. The situation is more complicated for porting applications: modern versions of Android and MIUI do not allow full portability of applications to the map, as was the case in older versions of Android.
The Secret to Formatting a Card as an Internal Memory
Cloud storage is a modern alternative to physical maps: services like Google Drive, Yandex.Disk or Mi Cloud allow you to store files online, set up automatic upload of photos to the cloud and enable the "Saving space" feature, which deletes originals from your phone after downloading.
If you use a memory card, check it periodically, the card file systems can become corrupted, leading to read errors, and regularly copy important data from the card to your computer, as it is less reliable than the built-in flash memory of a smartphone.
Hidden MIUI features and resetting settings
MIUI has a hidden section called Advanced Settings, which you can access through an engineering menu or special applications, but it is safer for the average user to use standard reset methods. If nothing helps and the message "lack of memory" continues to appear even after cleaning, it may be that the system has accumulated critical.
The last radical but effective method is a complete factory reset, which will put the Xiaomi Redmi 8 back out of the box.Be sure to back up all the data through the Mi Cloud or on your computer before doing so.
- 🔄 Go to Settings. → The phone. → Resetting settings.
- 🗑️ Select “Erase all data».
- 🔒 Enter the screen unlock password and the Mi Account password.
- ⏳ Wait for the reboot and initial setup.
Once reset, the system will be as small as possible. Don't install all the applications at once. Install only the necessary ones and monitor the growth of memory. Often, after a reset, it turns out that a particular application caused a memory leak or created infinite logs.
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Full reset removes 100% of user data and cache, guaranteeing free up space, but requires careful backup preparation.