Modern multimedia applications and games with high graphics detail consume a huge amount of disk space, turning even 128 gigabytes into a scarce resource. Owners of Xiaomi, Redmi and Poco smartphones often face notification of a shortage of space, which leads to slowdown and inability to install updates. Memory shortage is not just an inconvenience, it is a direct way to reduce the performance of the device, as the system becomes unable to place temporary files.
There are several proven ways to address this problem, from simple garbage cleaning to hardware storage expansion. It is important to understand that physically increasing the volume of the embedded NAND Flash chip is impossible, but you can optimize its use or redirect data flows to external media. In this article, we will discuss software and hardware methods that will help free up gigabytes of usable space.
Before embarking on radical measures like formatting, it’s worth assessing the current state of storage. MIUI or HyperOS provides built-in tools for analysis, but they don’t always show the full picture. The largest amount of hidden data is usually accumulated in the messenger cache (Telegram, WhatsApp) and system update logs.
Analysis of occupancy and search for hidden files
The standard Cleanup tool in the Security app is useful, but often misses large files uploaded to download folders or duplicate media files. For deep analysis, it is better to use specialized utilities or the built-in storage analysis function in the settings. Go to the Settings → Memory (or About Phone → Storage) menu to see a detailed data distribution diagram.
Often, users are unaware that a significant portion of the “baskets” in the gallery or cloud caches of streaming services. Apps like Spotify, Netflix or Yandex.Music can save gigabytes of tracks and videos for offline listening, which you have long forgotten. Deleting these temporary files can instantly free up 5 to 20 gigabytes.
Special attention should be paid to the Android/data folder, where the caches of games and applications are stored. In new versions of Android, access to this folder is limited, but through file managers with advanced rights (for example, MT Manager or Total Commander), you can safely delete old game data that you have already deleted from the system. This action will not affect the progress of games if it is stored in the cloud, but will clear the “heavy” resources.
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Use the Files by Google app to find duplicate photos and large files that a standard Xiaomi Explorer might not display in the “Recommendations” category.
Using MicroSD memory card as internal memory
One of the most effective ways to expand storage is to use a microSD card. Many Xiaomi mid- and low-end models feature a hybrid slot that allows you to install a SIM card and a memory card at the same time or use two SIM cards at the expense of microSD. Modern UHS-I or UHS-II cards provide read and write speeds sufficient for most applications.
Unlike older versions of Android, modern shells allow you to format a card as an “Adoptable Storage” (after this procedure, the system encrypts the card and combines its space with the internal memory, allowing you to install applications directly on the flash card, which solves the problem of lack of space for installing new programs.
However, there is an important nuance: the speed of the memory card is always lower than that of the built-in eMMC or UFS chip. Launching heavy games or applications from the card can be delayed, and when formatting the card for internal memory, all data on it will be destroyed, and the card itself will become unreadable on other devices without re-formatting.
☑️ Preparation of a memory card
Risks of using a memory card
Setup of the camera and messengers
The camera of modern smartphones shoots in high resolution, and 4K videos can eat hundreds of megabytes per minute. To prevent fast memory filling, you need to adjust your shooting options. Go to the camera settings and select 1080p video resolution instead of 4K if you are not planning a professional editing. It is also worth turning off the feature “Improving Photos with AI” if it saves the original and the processed version at the same time.
Messengers are the main “eaters” of space. Telegram and WhatsApp by default save all received photos and videos in the memory of the device. In the Telegram settings, go to Settings → Data and memory → Memory Use and set a cache limit (for example, 1 GB) and media storage period (for example, 3 days), This will allow the application to automatically delete old files, leaving them available in the chat cloud.
WhatsApp is more complicated because it stores media files in a shared folder. Check your WhatsApp/Media folder regularly and delete unnecessary video files, which often weigh the most. In chat settings, you can also turn off auto-save to the gallery so that media files do not duplicate in the system album.
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Automatic cleaning of messenger cache is the most effective way to maintain order without manual user intervention.
Synchronization with cloud services and PC
Cloud technologies allow you to store the main data array (photos, videos, documents) on remote servers, leaving only thumbnails or links on the device. Google Photos provides unlimited (with compression) or paid storage in original quality. By enabling the “Free space” function, you will delete from the device those photos and videos that have already been successfully uploaded to the cloud.
The Mi Cloud ecosystem also offers convenient synchronization tools for Xiaomi users. By setting up synchronization of gallery, contacts and notes, you can safely delete local copies. However, it is worth considering that free space in the Mi Cloud is limited (usually 5 GB), so you will have to buy a subscription or use other services like Yandex.Disk or Dropbox for large amounts of data.
Do not forget about the classic method of transferring files to a computer or external hard drive. Regular backup once a month will help keep free 20-30% of the memory of the smartphone, which is critical for the stable operation of the file system. Files that are rarely needed (vacation photos from past years, archives of documents) should not take up space in the immediate access.
| Method of expansion | Efficiency | Difficulty | Impact on speed |
|---|---|---|---|
| Clearing the cache | Low/Mediocre | Low. | Positive. |
| SD-map (internal) | Tall. | Medium | Minor decline |
| Cloud storage | Tall. | Low. | It does not affect (depends on the network) |
| Deletion of applications | Medium | Low. | Positive. |
Using USB-OTG for temporary expansion
Technology USB On-The-Go allows you to connect to the smartphone conventional USB-This is ideal for those who do not want to buy a memory card or cloud subscription, but need a temporary increase in the volume to transfer files. Most modern Xiaomi smartphones support this protocol out of the box».
If you plug in a flash drive, you can move movies, TV shows, or photo archives onto it, and the system recognizes the external drive as a separate drive, and you can even run videos directly from the flash drive through an embedded player or VLC, without taking up space in the internal memory, which is especially true for fixed-memory models without a card slot.
⚠️ Attention: When in use USB-OTG Don’t leave a heavy external hard drive connected without external power for a long time, as the phone port may not give enough current.
For comfortable work with USB-It is recommended that the storage device use a file manager with support for external devices. MIUI It usually handles basic operations (copy, delete, rename), but additional rights or third-party permissions may be required to format the disk into the exFAT file system (for files larger than 4 GB).