Not enough memory Xiaomi: what to do and how to free up space

The situation when the screen of a Xiaomi smartphone suddenly lights up with a system notification “Memory is full” or “Not enough memory”, is familiar to many users. This happens at the most inopportune moment: during an important call, when trying to take a picture or update the application. MIUI system, like any modern Android, requires free space for temporary files and correct operation of background processes, so you can not ignore this signal.

The reasons for storage overflow can range from the accumulated messenger cache to the huge number of screenshots forgotten in the gallery and high-resolution video. The internal memory of the device tends to run out quickly, especially on models with a basic configuration of 64 or 128 GB. Understanding the structure of the place is the first step to solving the problem.

In this article, we will not only look at standard cleaning methods, but also the hidden features of the system that will help you win several gigabytes of free space.We will look at working with system files, analyzing large files and specific settings of the Xiaomi HyperOS or MIUI shell, which are often hidden from the eyes of the average user.

Diagnosis: What exactly takes place

Before you mindlessly delete photos or apps, you need to pinpoint the memory eater. In Xiaomi devices, the built-in analyzer is responsible for this, which shows the distribution of resources by category. Go to Settings → Memory (or through the Security → Cleanup app) to see detailed mapping.

Most often, the Apps and Images and Videos are the lion's share. However, if you're a big messaging user like Telegram or WhatsApp, they can hide gigabytes of data in their internal folders, which the standard analyzer doesn't always correctly display in the total. App cache is a temporary download-prompting file, but over time it inflates to unimaginable sizes.

⚠️ Note: Do not delete files from Android system folders or MIUI manually through the file manager if you are not 100% sure of their purpose, this can lead to incorrect interface operation or data loss.

For deeper analysis, you can use third-party utilities like DiskUsage or Files by Google that visualize the folder structure as a diagram, which allows you to instantly find forgotten downloads, old backups or error logs taking up space.

Cleaning cache and junk files with standard means

The easiest and safest way to free up space is to use regular optimization tools. Every Xiaomi smartphone has a Security app preinstalled, which contains the Cleanup module. Pressing the scan button allows you to delete temporary files, remnants of deleted applications and advertising debris.

However, standard cleaning is often superficial. For more thorough cleaning, go to Settings → Applications → All apps. Select a heavy app (like a browser or social network) and click Memory. Here you will see the "Clear Cache" button. Important: don't confuse cache with data. Data cleanup will completely reset the application as if you just installed it, which will require re-authorization.

The Download folder deserves special attention, and many users forget that all downloaded files from the Internet are downloaded, PDF-documents and installations APK-Regularly checking this directory can free up 500 MB to several gigabytes.

Working with messengers: Telegram and WhatsApp

Messengers are the main culprits behind the lack of space on modern smartphones. Telegram, for example, by default downloads all viewed media files to internal memory. To fix this, open Telegram settings, go to Data and memory → Memory Use.

You need to change your startup settings here, set limits on video and file sizes for mobile data and Wi-Fi, and it’s also very useful to enable the “Storage Media” feature, setting a time limit of, say, 3 days or 1 week, after which time the files will be deleted from the phone’s memory, remaining available in the chat cloud.

The way to clean up in Telegram: Settings → Data and memory → Memory use → Clear cache

WhatsApp is similar, but there's a nuance with backups: If you have local copy chats enabled, they can take up a significant amount of space. Check the Android/media/com.whatsapp/WhatsApp/Databases folder. Store more than the last 2-3 copies there doesn't make sense.

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Turn on the “Fast Media Download” feature in Telegram settings only for Wi-Fi, so as not to fill the memory with mobile traffic and files on trips.

Analysis and removal of large files

Often, memory is filled with a few huge files that you might have forgotten existed, such as recorded 4K screens, long voice messages, or podcast files, and you can find them through the built-in file manager Mi File Manager or Google Files.

Use the size sorting function. In Xiaomi's file manager, click three dots in the corner and select "Sort by size." Files larger than 100MB will immediately be at the top of the list. View them and ruthlessly delete what has become irrelevant.

Pay special attention to offline maps in navigators (Yandex.Maps, Google Maps, 2GIS). If you downloaded a map of an entire region or country, it can take several gigabytes. If you do not plan to travel to this region in the near future, the map is better to delete or update, as older versions of maps are often duplicated.

Transfer data to memory card and cloud

If internal memory is physically limited, the only radical solution is to expand storage. Most current Xiaomi models support microSD card installation. Once installed, it is recommended to format it as Portable Storage or, in some cases, as part of internal memory (although this feature is often hidden in newer versions of Android).

For photos and videos, cloud services are best. Google Photos, Yandex.Disk or Mi Cloud allow you to set up automatic uploading of the media library. After successful synchronization, you can use the Free Space feature, which will remove the originals from the device, leaving them in the cloud.

⚠️ Note: When you transfer applications to a memory card (if the model allows), their work may slow down. NAND-storage.

Also worth considering is the use of USB-OTG flash drives for temporary storage of archives, which is convenient if you need to make room for an update immediately, and there is no computer at hand.

Removal of unused applications and duplicates

Audit installed apps. Often we put one-time programs and forget about them. Go to the Google Play Store, click on the profile icon and select App and Device Management. The Overview tab will show which apps haven't been updated in a long time or have not been used for a long time.

A separate category of problems is duplicate files. After multiple saves from WhatsApp or downloads of the same documents, files with a name of (1), (2), etc. may lie in folders. Xiaomi file managers and third-party utilities (for example, Duplicate Files Fixer) are able to find such copies.

Don't forget widgets and live wallpaper. Although they take up a little space in storage, their presence requires loading additional resources into RAM, which, if there is a lack of RAM, can indirectly affect the performance of the system, causing it to use the paging file more actively on the disk.

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Regular uninstall cleaning of applications that you haven’t used in more than a month is the most effective way to keep the system on track.

System settings and reset to factory

If manual cleaning doesn't help, you can try deeper methods. MIUI has a function called "Memory Extension" that takes some of the permanent storage into RAM. paradoxically, disabling this function in some cases (on older models with fast memory) can make room, although it usually consumes it. Check the settings in the "Additional → Expansion of memory" section.

It's also worth checking the folder. MIUI/gallery/cloud and MIUI/debug_log. The latter may accumulate debugging logs if the phone is in developer mode. Disabling the logger can stop the growth of these files.

As a last resort, when the system writes “Not enough memory” and the phone is slow, a full reset to factory settings helps. This will delete all data, so be sure to back up important contacts and photos before the procedure. Reset can be done through Settings → About phone → Reset settings.