Memory is full: how to free up space on Android Xiaomi

When a notification suddenly appears on a smartphone screen that the memory is full, it is familiar to every Xiaomi owner: the device starts to run slower, applications stop updating, and new photos are not saved, this is because the Android system partition is full of temporary files, app cache and accumulated over the years of use of multimedia data.

In MIUI and the new HyperOS, the standard Security tool is responsible for managing space, but it doesn't always find all the hidden files. The most voluminous are often messenger folders and system update cache that are not automatically deleted. Understanding the storage structure is the first step to a successful cleanup without losing personal data.

In this article, we will explore not only standard methods, but also advanced ways to free gigabytes. You will learn how to find “heavy” files, clear hidden cache and prevent fast filling in in the future. Don’t rush to remove important applications – often a few simple actions in settings solve the problem.

Analysis of storage occupancy through settings

Before you delete files at random, you need to determine exactly what is taking up space. In modern shells Xiaomi has a powerful analyzer that visualizes data. Go to the Settings menu, then select About phone and click on the Memory (or Storage) plaque, here the system will show the breakdown by category: applications, images, videos, documents and system files.

Pay special attention to the "Other" section, which is often where gigabytes of obscure data are hidden, whether it's remnants of deleted programs, cache of streaming services or update files, or if the "Apps" category is the lion's share, then there's a problem with installed games or social networks that store a lot of media files.

For detailed analysis, you can use the built-in Explorer app. Go to Analysis (graphic folder icon) and the system will suggest removing large files, duplicates and unused files. APK-It's a safe way to clean quickly that doesn't require a deep knowledge of the Android file system.

Cleaning cache and deleting temporary files

Cache is temporary data that apps save to make things faster. Over time, the cache grows and can take up to 10-15 GB of memory. Standard cleaning through the Security app (a flashpoint icon) removes only surface debris. For deep cleaning, you need to go to the settings of a particular application.

Go to Settings → Apps → All apps. Select a “heavy” app like Telegram or YouTube. Click on Memory and select Clear Cache. It’s important not to confuse it with Clear All, as the second option will delete your login and login settings.

💡

Cache cards in navigators (Yandex.Maps, Google Maps) can take several gigabytes. Periodically clean it in the settings of the navigator applications themselves.

Also worth checking is the download folder. Files downloaded from your browser or received in instant messengers often stay there forever. Open the Files app (or Explorer), find the Download folder, and sort files by size. Old.apk installation files and saved ones PDF-Documents can be safely removed.

Working with multimedia: photos, videos and duplicates

Media files are the main consumer of space on any smartphone. The cameras of modern Xiaomi shoot in high resolution, and one minute of video in 4K can weigh hundreds of megabytes. The built-in cleaning tool often finds the same photos taken in serial mode or “live photos”.

Use the Remove Duplicates feature in the Gallery or Files app, and the system will suggest leaving only the best photos from a series of similar ones, deleting the others, and it's also worth checking out the "Recently Deleted" album, which has 30 days of files stored there and continues to take up space until you clear the cart completely.

If you are actively using messengers, enable automatic cache cleaning in their settings. For example, in Telegram you can set a space limit (for example, 1 GB), and the application will delete old media files, leaving the text of correspondence.

Use of cloud storage and data transfer

When physical memory is exhausted, the best solution is to transfer data to the cloud. Xiaomi Cloud offers a basic amount for free, but for large archives, Google Photos, Yandex.Disk or Dropbox are better suited.

Google Photos has a Free Space feature that finds photos and videos that have already been uploaded to a cloud account and removes a local copy of them from the device, which is a safe process because access to media files over the Internet will remain.

For transferring large amounts of data (films, archives of working documents) it is convenient to use USB-You can just copy the folders of photos and videos to an external medium, and then delete them from the phone's internal memory, and that will bring back the system.

Hidden folders and system debris

In the Android file system, there are hidden folders that start from a dot (like.thumbnails) that you can't see when you're browsing. The DCIM/.thumbnails folder stores thumbnails of photos. If you deleted thousands of photos but the space didn't vacate, that preview cache may have inflated.

To access hidden files in the Explorer, you need to enable the display of hidden elements in the settings of the conductor itself. Be careful: delete only the contents of the cache folders, but not the system directories themselves. MIUI/.miui or Android/data (partly) may help but requires an understanding of what the specific application is responsible for.

⚠️ Note: Do not delete files from system folders with system, vendor or data names manually unless you are sure of their purpose. MIUI or loss of application data.

Also worth checking is the Tencent folder (if you use Chinese services) or the voice recorder and video editor folder. Often, after editing a video, source and project are stored in memory, taking up gigabytes. Deleting projects after rendering is a good habit for maintaining order.

Memory card and default save setting

If your Xiaomi model has a microSD card slot, use it to expand storage. Once you install the card, the system will suggest using it as portable storage or internal memory. For photos and videos, choose formatting as portable storage and transfer media files there.

It is important to configure the cameras and messengers to save data immediately to the map. In the camera settings, find the item "Save to the map". SD-Map" and activate it. WhatsApp and Telegram can also specify a path for uploading media files in advanced storage settings.

Keep in mind that memory cards are slower than the phone’s internal memory, and it is not recommended to install heavy games or applications that require high data read speeds on them, as this can cause “freezes” and slowdowns in the interface.

Radical measures: resetting and formatting

If nothing helps and the memory fills up on its own right after cleaning, it may be that the system has crashed a file table or accumulated a critical amount of errors, in which case a complete factory reset is an effective but radical method.

Before this procedure, make sure to make a full backup of the data to your computer or the cloud, as all files will be destroyed. Path to reset: Settings → About phone → Reset → Erase all data. Once reset, the phone will be like a new one, with a clean file system.

⚠️ Warning: Before resetting, make sure you remember the password from your Mi Account and Google Account. Once formatted, the phone will require them to prove ownership (anti-theft protection).

An alternative to a full reset might be to remove newly installed applications that may have caused a memory leak. Analyze which program started to get problems after installing, and try to delete it. Sometimes cleaning the Advanced Settings section → Recovery and Reset → Resetting Wi-Fi, mobile Internet, and Bluetooth settings helps, which resolves some software conflicts.

💡

Regularly restarting your phone (every 3-4 days) helps the system automatically clean temporary files and close down the frozen processes, saving space.

Frequently Asked Questions (FAQ)