Owners of Xiaomi Redmi 4 often face limited storage, especially if the device is used as the main camera for important events. When the memory is overflowing, the system starts to work slower, and new images simply stop being saved. The solution is to use an external drive that allows you to expand the space for multimedia without losing the quality of files.
The process of data transfer does not require complex technical knowledge, but the MIUI shell has its own nuances that must be considered for the correct operation of the system. It is important to understand the difference between simple copying and changing the default saving path, since these actions solve different tasks to free up space. In this article, we will discuss in detail all available methods, from standard system tools to the use of third-party file managers.
Before you start manipulating files, make sure your memory card is properly formatted and well-functioning. File system errors can lead to loss of data or inability to record new photos. We will consider how to check the state of the drive and prepare it for active work with media content.
Preparation of memory card and system setting
The first step is to physically install the drive and set it up in an Android environment. Once the card is inserted into the smartphone slot, the system usually automatically suggests formatting it, a critical step, as the file system must be compatible with the operating system's requirements for stable recording of large amounts of data.
To perform formatting, go to the Settings menu → Memory. Here you'll see information about the built-in storage and the connected storage. SD-Select a memory card and click on the "Clean" or "Format" button, and note that this process will delete all the data, so if the card already has files, you must save them to your computer beforehand.
⚠️ Note: Formatting a memory card inside a smartphone creates a file system optimized for that device, and if you take the card out and paste it into another phone or PC without re-formatting, the data can become unreadable.
Once the procedure is complete, the system will label the drive and it will be available for recording. In some versions of the MIUI firmware, the "Use as internal memory" feature is available, which encrypts the card and allows you to install applications on it. However, for storing photos, it is better to leave the card as a portable storage so that you can easily retrieve and view files on other devices.
Automatic photo saving on SD-map
The most effective way to avoid internal memory overflow is to set up the camera to immediately save the images to an external drive.This eliminates the need to manually transfer files after each photo shoot. Xiaomi’s standard Camera app has a built-in feature to change the save path.
To activate this option, open the camera app and click on the three horizontal bars in the upper right corner of the screen. In the menu that appears, select Settings. Scroll down to the Saving or Memory section. SD-map.
Once this feature is enabled, all new photos and videos will automatically enter the external drive, not only for standard shooting, but also for modes like Portrait or Pro. If you use third-party photo processing applications like Lightroom or VSCO, the save path settings will need to be changed separately in each of them.
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If the torque is saved on SD-The card is inactive (gray), check if the card is inserted correctly. Sometimes the contact is oxidized and the system does not see the drive, reading it as missing.
Note that the speed of writing to the card can be lower than internal memory. When shooting high-resolution video or serial shooting in RAW format, the camera buffer can fill up faster, which will lead to delays. Use cards of the class speed at least Class 10 or UHS-I for comfortable work.
Manually moving existing photos
If you already have a lot of pictures in your internal memory, you have to move them manually, and you can use the standard File Manager Explorer, which is preinstalled in the MIUI shell, which has a clear interface and all the necessary functions for working with files.
Launch Explorer and go to Images or Internal Drive. Find the DCIM → Camera folder where all the images are stored by default. Select the photos you want with a long press or select the "Select All" option from the control menu.
☑️ Algorithm of file transfer
Next, the system will suggest selecting a destination folder «SD-You can create a new folder, or you can select an existing one, like Photos. Click "Insert" or "OK." The copying process will take time depending on the data volume and the speed of the card. Don't turn off the screen or run heavy applications during the operation, so as not to interrupt the process.
⚠️ Note: When using the Move function, the original files are deleted from internal memory only after the card is successfully written. If the process is interrupted (for example, the battery dies), the files may be damaged or lost.
Alternatively, you can use a computer connection. Connect your smartphone to your PC via a computer. USB-cable, select file transfer mode MTP Open two windows on your computer: the phone's internal memory and the memory card. Just drag and drop the photo folders from one window to the other.
Use of Third-Party File Managers
Standard Explorer is convenient, but sometimes functionality is not enough, especially when working with hidden folders or specific formats. Third-party file managers such as Total Commander or FX File Explorer provide advanced features, including dual-panel mode, which greatly speeds up data transfer.
In two-panel mode, the screen is divided into two parts: on the left, the internal memory is displayed, on the right, the memory card. You just open the folder with the photos on the left, highlight them and drag them to the right side of the screen, which visually simplifies control of the process and minimizes the risk of error when the user forgets where and where he copies files.
| Annex | Advantages | Deficiencies | Difficulty |
|---|---|---|---|
| MIUI conductor | Built into the system, does not require installation | Limited functionality | Low. |
| Total Commander | Two-panel mode, plugins | Outdated interface design | Medium |
| FX File Explorer | Modern interface, network | There are paid functions | Low. |
| Google Files | Cleaning up garbage, integrating with Google | Less file settings | Low. |
When using third-party software, Android can request permission to access files. This is a standard security procedure that must be confirmed by clicking "Allow" and highlighting the root folder. SD-Without this permission, the application will not be able to write data to an external medium.
Why are some photos not copied?
Optimization of the gallery after the transfer
Once you have moved the photos, the standard gallery can behave in an unpredictable way, with images disappearing from view or duplicates showing up, because the system's media scanner has to re-index the files in a new location, usually automatically, but sometimes user intervention is required.
If you don't see the transferred photos, open the Gallery app and pull the album list down for an update.In some cases, cleaning the Gallery app's cache through the Settings menu helps. → Annexes → All applications → gallery → Memory. → Clear the cache. It won't delete your pictures, it'll only update the thumbnail database.
To hide the system folders and technical images from the memory card from prying eyes, you can create a file at the root of the memory card called.nomedia. This hidden file tells the Android system that this folder or on this medium there are no media files to display in the gallery.
⚠️ Note: When carrying a large number of photos (thousands of pieces), indexing can take a considerable time and cause the device to heat up.
It’s also worth checking your sync settings with cloud services like Google Photos or MI Cloud. If you have internal memory-only sync enabled, new photos on the map may not be uploaded to the cloud. Go to your cloud service settings and make sure you have backup from all available storage.
Typical problems and ways to solve them
In the process of operation, users of Xiaomi Redmi 4 may face a number of difficulties «SD-Card damaged" or a sudden termination of the record. Often this indicates wear of memory card resource, since memory cells have a limited overwriting cycle.
Another common situation is that the phone sees the card but refuses to write data to it. Check the file system format. Android natively supports FAT32 and exFAT. If the card is formatted in NTFS (Windows standard), the phone will only be able to read files, but not write new ones without special drivers or root rights.
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If your phone is constantly losing its memory card, try gently erasing the contacts on the card itself and in the smartphone slot with alcohol, often the problem lies in the oxidation of contacts or a bad press.
You should also consider that some cheap memory cards have real capacity less than stated. When you fill the "fake" volume, new data begins to overwrite old data, which leads to irreversible loss of photos. Use utilities on a PC, such as H2testw, to check the real volume before active use.
In rare cases, the problem lies in the software failure of the MIUI firmware itself. If nothing helps, try resetting the phone to the factory settings. Before that, make sure to make a full backup of all important data, as in the process of resetting all information will be destroyed.