Xiaomi and Redmi smartphones often offer excellent performance for a reasonable price, but they have one significant drawback - limited internal memory. Owners of devices with 32 or 64 GB of storage sooner or later face a critical lack of space. The system begins to work slower, and messages about internal memory full appear more and more often. SD card becomes a real salvation in such situations.
Data transfer allows you to free up gigabytes of precious space for installing new system updates or heavy games. However, the process of moving files on memory cards in the shell MIUI has its own characteristics that must be taken into account. Some file types are easy to move, while others require the use of specific tools or root privileges. It is important to understand the difference between storage formats so as not to lose important photos or documents.
In this article we will analyze in detail all the available ways to free up space. You'll learn how to set up the card as portable storage or as an extension of your internal memory. We will also discuss the nuances of working with applications and multimedia files. By following the instructions, you can optimize the performance of your device without purchasing a new smartphone.
Preparing the SD card for use
Before you begin transferring files, you must properly prepare the drive. A store-bought memory card may be formatted with a file system that your smartphone does not support or contain writing errors. Insert the card into the slot of your device Redmi and wait for the notification about connecting a new drive.
Usually the system prompts you to select a method of use immediately after detection. If the notification disappears, go to the settings menu. Find the section Storage or Memory. Here you will see a list of available drives. Click on the name of your memory card to open the management menu.
In the window that opens, select “Configure”. You will be given two options to use: “Portable media” or “Internal memory”. The first option is suitable for storing photos, music and videos, which can be easily transferred to another device. The second option turns the card into an extension of the system partition, but the data will be encrypted and inaccessible on other phones.
⚠️ Attention: The formatting process completely deletes all data from the memory card. If it already contains important files, copy them to your computer before starting setup in the smartphone menu.
Select the appropriate mode and confirm the action. The system may warn you about low write speed if you are using an old class card C10 or lower. For comfortable work, it is recommended to use standard drives UHS-I or UHS-II. This will ensure fast loading of applications and smooth recording of high-definition videos.
Transferring photos and videos through Explorer
The easiest and most reliable way to free up space is to manually move media content. By default, the smartphone camera saves all pictures to the internal memory in the folder DCIM. Over time, this directory takes up tens of gigabytes. A standard file manager MIUI allows you to quickly solve this problem.
Open the File Explorer application on your desktop. Switch to the Folders or Internal Shared Storage tab. Find the directory DCIM and go to the subfolder Camera. All your photos and videos are stored here. Select the desired files with a long press or use the “Select All” button in the menu.
After selecting the files, click the “More” button at the bottom of the screen and select the “Move” action. Don't use the Copy feature if your goal is to free up space, as copying will create duplicate files. In the list of available destinations, select your SD card and specify the destination folder.
- 📸 Create a separate folder
Photos_Archiveon the card to organize old pictures. - 🎬 Video files take up the most space, so they should be transferred first.
- 📁 Regularly clean out the folder
Thumbnailsthat contains image thumbnails.
In a similar way, you can move downloads from the browser and documents from instant messengers. Find the folder Download for files from the Internet and the directory Android/media for application data. Be careful when moving system folders so as not to disrupt the operation of apps.
⚠️ Attention: Do not move files that are in the process of being downloaded or processed. Wait until the file is completely saved before moving, otherwise it may be damaged.
Use the Sort by Size feature in Explorer to quickly find the largest files and move them specifically. This will give the maximum effect of freeing up memory.
Configuring the card as internal memory
The “Internal Memory” (Adoptable Storage) function allows the system to perceive the card as an integral part of the smartphone. This solves the problem of lack of space globally, since new applications and their data will be automatically saved to external storage. However, this option is not available on all models and versions Android.
To activate this mode, go to the storage settings and select formatting the card as an internal drive. The system will warn you that the card will be encrypted and linked to this device. It will be impossible to extract it without losing data and formatting in the future. Click “Format” and wait for the process to complete.
After successful setup, you can transfer already installed applications. Go to Settings → Applications → All applications. Select the desired app from the list. If transfer is possible, you will see a “Move to SD card” button. If the button is inactive, then the application developer has prohibited installation on external media.
| Data type | Automatic transfer | Manual transfer | Risks of loss |
|---|---|---|---|
| Photos and Videos | No (requires configuration) | Yes (via Explorer) | Low |
| Applications | Yes (if enabled) | Partly | Medium |
| Music | No | Yes | Low |
| System cache | No | No | High |
Using the card as internal memory may slightly reduce the overall speed of the device, especially if the drive does not have a high speed of reading random blocks. For everyday tasks, the difference is often unnoticeable, but heavy games may take longer to load.
Transferring data via computer
If the built-in file manager is slow or you want to transfer terabytes of data at once, using a computer will be the most effective solution. Connect your smartphone to your PC using the original USB cable. A request for connection mode will appear on the phone screen.
Select the “File Transfer” mode or MTP. The computer will recognize the device as a removable disk. Open My Computer and locate two drives: internal memory and memory card. Now you can use the familiar Windows interface to manage files.
Select folders with photos, videos and documents on the internal drive. Use the key combination Ctrl+X to cut files. Go to the memory card window and click Ctrl+V to insert. This method is convenient because it allows you to easily create a complex folder structure and sort files by date or category right on the big screen.
⚠️ Attention: Never remove the cable during the copying or moving process. Interrupting the connection may result in file system corruption and data loss.
Once the transfer is complete, safely remove the device from the Windows system tray before unplugging the cable. This ensures that all write buffers are cleared and data is correctly saved on the media.
What to do if the computer does not see the phone?
Make sure that the cable is working and supports data transfer, not just charging. Try a different USB port. On your phone, in the developer settings, enable USB debugging if the standard connection does not work.
Using cloud services as an alternative
Sometimes the physical SD card is not available or the slot is occupied by another SIM card. In such cases, cloud storage comes to the rescue. Services like Google Drive, Yandex.Disk or Mi Cloud allow you to store files on the Internet, freeing up local space.
Install the cloud service application and log into your account. In the application settings, find the “Startup” or “Synchronization” function. Enable it for the camera folder. All new photos will be automatically uploaded to the cloud.
Once the files have been uploaded, many applications offer a “Free up space” function. It deletes local copies of files that have already been successfully saved to the cloud. You can view them in the gallery at any time if you have an Internet connection, but they will not take up space in your phone's memory.
This method requires a stable network connection and may consume mobile traffic. It is recommended to set up synchronization via Wi-Fi only. Also remember about the limits of free space in the cloud, which are usually 5-15 GB.
Cloud services are ideal for backup, but an SD card remains the best solution for quick access to large amounts of data without the Internet.
Possible problems and their solutions
During operation, users may encounter various difficulties. The card may suddenly become unrecognizable, and files may disappear or become corrupted. Often the reason lies in a poor-quality contact or a software glitch.
If the card is not visible, try removing it, wiping the contacts with a soft cloth and inserting it back. Make sure it clicks into place. If the problem is not resolved, try formatting the card again through your phone settings. As a last resort, check the drive on your computer using the utility chkdsk.
Another common problem is slow operation of the system after transferring applications. This indicates the card's speed is low. In this case, you should consider purchasing a more powerful drive from a trusted brand. Cheap cards often do not meet the stated specifications.
- 🔄 Rebooting the device often resolves temporary glitches in the file system.
- 💾 Regularly backup important data to a computer or to the cloud.
- 🛡️ Avoid removing the card while applications are running, who use it.
If none of the methods help, the card slot may be physically damaged. In this case, diagnostics will be required at a service center. Do not try to disassemble the phone yourself if you do not have the appropriate experience.
☑️ Diagnosing problems with the SD card
Is it possible to transfer WhatsApp to an SD card on Redmi?
Directly transferring the WhatsApp application itself to an SD card in the latest versions of Android and MIUI is often impossible due to Google security restrictions. However, you can transfer messenger media files. Go to WhatsApp settings → Chats → Chat backup and select saving to Google Drive, and files from the folder Android/media/com.whatsapp can be moved manually through Explorer.
Why did they disappear from the gallery after transferring the photos?
The gallery scans certain folders. If you moved photos to the root of the map or to a hidden folder (starting with a dot), they may not appear. Create a folder DCIM on the card and place the photo there, or use the “Show hidden files” function in the gallery settings.
Does frequent writing to an SD card harm its service life?
Yes, memory cards have a limited resource of rewrite cycles. When actively used in the “Internal Memory” mode, when the system is constantly writing the cache, the card may fail faster than when storing static files. Use high-reliability cards for such tasks.
How to return applications back to the internal memory?
Go to Settings → Applications, select the desired application and click “Move”. If the button is inactive, try first uninstalling application updates or temporarily removing the SD card so that the system forcibly returns the data to the internal storage.