Owners of Xiaomi and Redmi smartphones often face a lack of built-in storage, especially when shooting in high resolution. Modern photography requires more space, and the internal memory of the device quickly fills up, slowing down the system. Transferring media files to an external drive is not just a way to free up gigabytes, but also a necessary measure for the stability of the gadget.
The process of moving data may seem complicated to a beginner, but the MIUI or HyperOS shell provides enough tools to manage files. You don't need to be an IT expert to properly organize the space. In this article, we will discuss in detail all available methods, from automatic configuration to manual transfer through the file manager.
Before you start manipulating, you need to make sure that your smartphone supports microSD cards. Not all models of the budget and mid-segment have the appropriate slot, so checking the specifications is the first step. If the slot is present, further storage optimization will take only a few minutes of your time.
Preparation of a memory card and installation in a smartphone
The first step is always to physically install the drive and set it up initially by the system. A store-bought memory card can be formatted in a file system that the phone doesn't read or contain errors. Android requires a certain data structure to work properly for applications and save files.
Once you've inserted the card into the SIM card tray and turned on the device, the system usually suggests formatting the media itself, which is critical because formatting clears all the data. If there are already important files on the card, they must be pre-copyed onto the computer, as they will be permanently deleted in preparation for Xiaomi.
⚠️ Note: During the formatting process, the system may warn of a decrease in write speed when using the card as internal storage. U3 or V30, Avoiding lags when shooting videos 4K.
If no automatic notification appears, you can manually start the settings via the menu. → The phone. → Storage. Here you'll see a list of available drives. Select yours. SD-You can click the "Format" button and the system will tell you to choose the type of use: as a portable storage device or as part of internal memory.
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Use memory cards up to 256GB for maximum compatibility, even if the phone supports large volumes, which will reduce the risk of file system software errors.
The choice of use affects how files are distributed. Portable storage makes it easy to transfer a card between devices, but some applications may refuse to store data on it. Using it as part of internal memory (Adoptable Storage) makes the card invisible to other devices without re-formatting, but fully integrates it into the system.
Automatically save photos and videos on SD card
The most effective way to avoid internal memory overflow is to set up automatic recording of new images immediately to an external medium. The standard Camera app in Xiaomi smartphones has a built-in feature for this, which will save you from having to regularly manually clean or transfer files after the fact.
To activate this feature, open the Camera app and click on the three menu bars in the upper right corner. In the list that opens, select Settings. Scroll down to the save section and there will be Save on. SD-card" or similar, which must be switched to the active position.
Once this option is enabled, all new photos and videos will automatically enter the DCIM/Camera folder on the external drive. It is important to note that shooting modes such as Timelapse or Video Blog can ignore this setting and continue to store data in internal memory due to write speed requirements.
It is also worth considering that some third-party photo processing applications or social networks can store cache and processed images into internal memory, regardless of the camera settings. Therefore, periodic monitoring of the main partition filling will still be necessary, even when automatic writing to the card is enabled.
Manual transfer of files through the Explorer
If you need to move existing photos from your smartphone, you'll need to use a manual method, and MIUI has a powerful file manager that allows you to copy, move and delete data between partitions at high speed.
Open the Explorer app (or Files). On the home screen, you'll see the Internal Shared Drive sections and, if the card is installed, «SD-Go into the internal memory and find the folder. DCIM, And inside it is the Camera. This is where most of your shots are stored.
Select the right photos or entire folders with a long press. In the bottom menu, you'll see a "More" button or a three-dot icon. Click on it and select the "Move" action (to make room) or "Copy" action (to create a backup). SD-maps, create a new folder there, for example, “Archive Photos”, and click “Insert».
☑️ Transfer checklist
The transfer speed depends on the class of your memory card and the number of small files. Moving thousands of photos can take anywhere from minutes to an hour.During this process, it is not recommended to run heavy applications or interrupt the conductor so as not to damage the file system.
Setup WhatsApp and Telegram to work with SD
Messengers are among the main memory eaters, and the photos and videos that come in WhatsApp and Telegram chats are stored in internal memory by default, and fortunately, you can change the way you save media files in the settings of these apps.
On WhatsApp, go to Settings → chat → Storage: If the memory card is installed and formatted correctly, the option "Storage folder" will appear «SD-After that, all the new media files will be downloaded to an external drive, while the old files will remain in place, they must be transferred manually.
Telegram is a little different. In the app settings (Data and memory) → The path to the files can be selected SD-However, in the latest versions of Android, file system access rights are limited, and the application may not see the map or require additional permissions, in which case it is recommended to use the phone's built-in file manager to periodically clean the messenger cache.
⚠️ Note: When reinstalling the messenger or resetting the phone settings, files on SD-The maps can become invisible to the app until you re-indicate the path to them in the settings. Always back up the chats to the cloud.
Also, if you download images from the Internet often, go to your browser settings (Chrome, Mi Browser) and change the way you save to an external drive in the Downloads section, which will help keep the system partition free of temporary debris.
Using a memory card as internal memory
A feature known as Adoptable Storage allows the Android system to perceive SD-It's a radical solution that encrypts the card and binds it to a particular device, and you can't take it out and paste it into another phone without losing data.
When this mode is activated, the system transfers some of the application data and its cache to an external medium, which significantly relieves the main partition, but the speed of the application can decrease if the memory card does not have a high read/write speed. Only cards with markings are suitable for this function. A1 or A2.
To enable the mode, go to Settings → Warehouse, select yours. SD-Click on "Format as internal memory" and the system will warn you of the risks and inability to use the card on other devices. Once the process is complete, some of the internal memory will "dissolve" by combining with the card's volume.
Why can’t some apps be migrated to SD?
Using a card as internal memory has its own risks: If the card fails, the applications installed on it will stop working and their data may be lost, so this method is less reliable than traditional cloud-based backup or internal SSD storage for storing critical information.
Comparison of storage methods and characteristics table
The way you manage your memory depends on your needs. If you change phones often, portable storage is more convenient. If you just need to make room on a budget device with a small amount of internal memory, formatting as internal storage will be more effective.
Below is a comparison table that will help you decide on the optimal strategy for using external drive in the Xiaomi ecosystem.
| Characteristics | Portable storage | Internal Memory (Adoptable) | Cloud services |
|---|---|---|---|
| Portability | High (can be inserted into the PC) | Not present (linked to the phone) | High (access from any device) |
| Speed of operation | Depends on the card. | Medium (may be lower than internal) | Depends on the Internet. |
| Security of data | Average (risk of card loss) | High (encryption) | High (with a strong password) |
| Installation of applications | Limited. | Possible. | Impossible. |
Analyzing the table, we can conclude that there is no universal solution. For a photo archive, the best portable mode with regular copying to a computer is best. To expand the functionality of an old smartphone with 16-32 GB of memory, it is better to use internal memory mode.
Possible problems and solutions
In the process of operation, users may experience read or write errors, often the problem lies in poor contact or file system. If the phone stops seeing the card, try to remove it, wipe the contacts with soft cloth and paste back before clicking.
Another common issue is the “File is too big” error, which occurs when the card is formatted in the FAT32 file system, which does not support single files larger than 4 GB.
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The exFAT file system is optimal for memory cards over 64 GB, providing PC compatibility and support for large files.
If the phone is constantly writing «SD-The card is damaged, maybe the drive has run out of overwrite cycles, memory cards have a limited lifespan, and then the only solution is to buy a new drive, preferably from proven brands like SanDisk or Samsung.
⚠️ Note: Do not remove the memory card while writing or reading data, this can cause logical errors in the file system and loss of some photos, even if the card is physically intact.