Owners of Xiaomi, Redmi and Poco smartphones often face a situation where internal storage is crowded, and the purchased memory card is used only as a passive archive. MIUI has its own features of working with the file system, and simply drag applications back to the built-in drive is not always possible through standard settings. This creates the illusion of lack of space, although gigabytes are free to lie on the external media.
The process of moving information requires care, as erroneous actions can lead to the loss of important files or malfunction of programs. In this article, we will examine all available methods, from the regular means of the system to the use of a computer and third-party software. You will learn how to properly manage the space so that your gadget works quickly and without failure.
Before you start any file operations, it is recommended to back up your critical data. This is the golden rule of digital hygiene, which will save your photos and documents in the event of an unexpected power failure or software error. The Android file system can change access rights when you move system folders, which will require re-authorization in some applications.
Preparation of the device and compatibility check
Before you start manipulating files, you need to make sure that your device correctly recognizes the external drive. → The phone. → The storage and check if the volume of your flash drive is displayed there"SD-card is damaged" or offers to format the media, first save the data to the computer.
Make sure the file system format is compatible with Android.The best choice is exFAT or FAT32, although modern versions MIUI know how to work and NTFS through special drivers or OTG-Adapters: Incorrect format can cause slow writing or inability to read large files.
⚠️ Note: Do not remove the memory card while actively writing data or running applications installed on it. This can lead to irreversible damage to the file table and loss of information.
It is also worth checking the status of the slot itself, if the phone has recently fallen or come into contact with moisture, the contact may be disrupted, in which case the system may intermittently lose connection to the drive, making the transfer process impossible.
Use of the built-in file manager
The easiest and safest way to move photos, videos and documents is to use the File Manager, a regular application that requires no root rights and works consistently on all versions of the shell"SD-map and select the correct folders.
Select files with a long tap, press the "More" button or three dots in the corner of the screen and select "Copy" or "Move." Copy is safer, as it leaves the original on the flash drive in case of an error, and Move immediately frees up space on the external media.
☑️ File action plan
Once you select an action, the system will ask you to specify destination. Go to the Internal Shared Drive section and select a destination folder, such as DCIM for a photo or Download for documents. The process can take time depending on the amount of data and the speed of the map.
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When moving large amounts of data (more than 10 GB), it is better to break the operation into several stages of 2-3 GB, so as not to overload the system clipboard and avoid hanging.
Transfer applications to internal memory
Apps are more complicated than media. Since Android 6.0, Google has limited the portability of programs, and in MIUI, this feature is often hidden or incorrect for system applications.
Try Settings → Applications → All apps. Select the program you want from the list. If portability is possible, you will see an active "Move" or "Change" button in the storage section. If the button is gray or missing, then the developer has forbidden installation on an external medium or porting to an internal one.
| Type of application | Possibility of transfer | Risks. | Recommendation |
|---|---|---|---|
| System (Settings, Phone) | Impossible. | High (system failure) | Don't touch it. |
| Social networks (WhatsApp, Telegram) | Partially. | Middle (loss of history) | Use the built-in backup |
| Cache games | Maybe. | Low. | Can be moved |
| Banking applications | Forbidden. | Critical (blocking) | Leave it on the inside. |
It is important to understand that even with a successful transfer of some of the application data (cache, updates) will still be stored on the internal drive. Completely free up space, transferring heavy play to the internal memory from the flash drive, it is rarely possible without the use of special tools.
⚠️ Note: Forced transfer of system applications through ADB This can lead to a phone bootloop, and only do this if you understand the risks.
Using a computer for mass transmission
When it comes to tens of gigabytes of information, wireless methods or working through a phone interface can be too slow. USB-cable provides maximum data transfer speed and connection stability.
Connect your smartphone to your computer with a cable and select File Transfer (MTP) mode in the notification on your phone screen. On your computer, open My Computer, find the device, and open its internal memory and memory card in two different windows, which will allow you to easily drag and drop files with your mouse.
What to do if your computer can’t see your phone?
When you copy large arrays of small files, the speed can drop, so you might want to archive folders on your computer in ZIP or RAR format, reload the archive, and then unpack it on your phone, which will speed up the process and preserve the folder structure.
Once the transfer is complete, be sure to safely remove the device from the computer operating system before disabling the cable.Abruptly shutting down can damage the file system of both the phone and the flash drive.
Problems of access rights and their solution
Modern versions of Android (11, 12, 13, 14) have tightened security policies known as Scoped Storage, which means that applications can’t simply access the entire file system, which often blocks file managers from working when trying to migrate system folders.
If a standard Explorer doesn't allow you to copy a folder, try using specialized managers like MT Manager or Total Commander. When you first run, they will request extended permissions. You will need to click OK, then Use this folder and confirm the action, giving the application full access to the root of the storage.
Sometimes it helps to clean the cache of the Explorer app itself. Go to Settings → Apps → Explorer → Storage → Clear the cache. This won’t delete your files, but it can fix errors in the file management interface.
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Problems with access to the folder Android/data are resolved only through the provision of special permissions in third-party file managers, standard means of access is limited.
Optimizing Storage After Transfer
Once you've flipped the data, make sure you check if the space is free. Go to the storage settings and analyze the diagrams. Sometimes the "freed" space doesn't show up immediately because of the system's caching, in which case a simple reboot of the device will help.
Configure the camera and messengers so that new photos and videos are saved by default. SD-This will prevent the internal memory from filling up quickly in the future, and the path to setting up is usually in the settings of the camera itself or in Settings. → Warehouse → Default location.
Regularly review folders. Delete.thumbnails files that can grow to several gigabytes, storing thumbnails of the images viewed. This will require you to enable the display of hidden files in the Explorer settings.