Owners of budget and mid-budget smartphones like the Xiaomi Redmi 8 often face a lack of built-in space. The operating system and pre-installed apps take up a significant portion of the available 32 or 64 gigabytes, leaving little room for personal content. When the gallery is overflowing with snapshots, the system starts to run slower, and notifications of memory shortages appear at the most inopportune moment.
The most effective solution is to use a microSD memory card, which frees up internal storage for applications while keeping all important images and video archives. In this article, we will detail all the ways to transfer media files, from standard system tools to using a file manager.
Many users mistakenly believe that the process requires a connection to a computer or the installation of complex third-party software. In fact, the MIUI shell interface provides all the necessary tools to manage files directly from the menu of the smartphone, the correct organization of data on the flash card will ensure their safety even if the phone resets to the factory.
Preparation of a memory card and installation in a slot
Before you start manipulating files, you need to make sure that the memory card is properly installed and formatted. Redmi 8 uses a combined slot, so it is important to correctly position the SIM card and the drive. If you are using a card that already had data, it is recommended to make a backup copy, as the phone will offer its formatting.
Once the card is physically placed in the tray, the system automatically recognizes the new media, and the notification curtain will display a message that requires customization, which cannot be ignored because without proper formatting in the Android file system, access to the record will be limited.
Choose the card as Portable Storage, which makes it easy to transfer the drive to other devices, such as a computer or other phone, without losing data. Internal Storage mode in modern versions of MIUI is often hidden or discouraged, as it binds the card to a particular device and encrypts data.
- 📱 Remove the tray with a paper clip and insert the microSD before clicking.
- 🔔 Wait for notification of finding a new drive at the top of the screen.
- ⚙️ Click “Configure” and select use as a portable medium.
- 💾 Confirm formatting if the system requests deletion of all data.
⚠️ Note: Formatting a memory card completely deletes all files. If it has important documents on it, copy them to your computer or cloud storage first.
The preparation process takes only a few minutes, but is the foundation for further work: Make sure that the smartphone battery is charged at least 30-40% to avoid accidental shutdown during formatting.
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Use UHS-I speed memory cards (U1 or U3) to record photos and videos quickly. Slow cards can cause delays when shooting in high resolution.
Use of built-in conductor for transfer
The standard Explorer tool in Xiaomi smartphones is the most convenient way to manually manage files, and allows you to see folder structure in both internal memory and on-board storage. SD-To start, open the Explorer app through the Tools menu or folder».
You'll see two main sections in the interface, "Folders" and "Categories," and we'll need the "Folders" section, which displays the root directory of the device, and you'll find the DCIM folder, which stores all the photos and videos you've taken on the camera by default.
Select the files you want or the entire folders with a long press, and then you pick the action menu at the bottom of the screen, and then you click on the "Move" button and you select "Move" and you will be asked to select destination, in this case, a memory card.
☑️ Transfer algorithm through the conductor
When moving a large number of files, the process can take time: Do not lock the screen or switch to other heavy applications, so as not to interrupt the background copying process.
Set up the photo saving immediately on SD-map
To avoid manually moving photos every time, you can set up the Redmi 8 camera to automatically save pictures directly to the external drive, eliminating the need for constant manual sorting and freeing up internal memory at the time of shooting.
To activate this feature, open the Camera app. In the upper right corner, click the menu button (three horizontal bars). In the list that opens, select Settings (cogs).
Scroll down the list of options to the Advanced Settings section. Find the Save on SD-Now, all new images and videos will be automatically transmitted to the external media.
- 📸 Open the Camera app and click the settings menu.
- 🔽 Find the “Save” or “Advanced Settings” section».
- 💾 Turn on the switchboard "Save on" SD-map».
- ✅ Take a test shot and check its location in the Gallery.
⚠️ Warning: If the memory card is retrieved or overflowed, the camera will automatically switch to internal memory or stop taking pictures.
It is important to note that this setting does not apply to photos obtained from messengers or downloaded from the browser, for which you need to separately configure the save paths in the respective applications.
Why are some photos still stored inside?
Transferring data through the Gallery app
The MIUI Gallery app has built-in functionality for managing albums, which can be a more visually understandable way for those who are used to navigating by dates and events rather than folder names.
Open the Gallery and go to the Albums tab, and select the album you want to move, like Camera or Screenshots, and click Select and select the images you want.
After selecting, click on the "More" button (usually at the bottom of the screen) and select "Move to the album." In the list of available albums, find the section related to the album. SD-You can either create a new album on an external medium, or you can physically move files.
This method is convenient because you can see what you're carrying right away, but it may be less efficient than Explorer for mass-transferring thousands of photos, because the Gallery interface can slow down when processing large amounts of data.
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Using the Gallery for transfer is ideal for selectively archiving old events, making room for the here and now.
Comparison of storage methods: table
The choice of storage depends on your smartphone usage habits, and here is a comparison of the main characteristics of storage in internal memory and on a microSD card for the Redmi 8.
| Parameter | Internal memory. | SD-map |
|---|---|---|
| Speed of operation | High (UFS) | Medium (depending on the class of the card) |
| Reliability | Tall. | Medium (risk of loss in case of breakdown) |
| Access to PC | Only via cable/ADB | Straight (through card reader) |
| Impact on the system | Critical for speed. | It doesn't affect the OS. |
As you can see from the table, internal memory provides better performance, so system files and application cache are better left there.The memory card is ideal for archiving media files that you rarely view.
Using a memory card larger than 128 GB on the Redmi 8 can lead to unstable work, as official support is limited, although many users successfully use 256 GB.
Clearing the cache and freeing up the space
After transferring the main data sets, it is recommended to audit the remaining files, and often the internal memory accumulates “digital garbage” – browser cache, temporary update files and remnants of deleted applications.
Use the built-in Cleanup tool (a flashlight icon in the Security app) to automatically find unnecessary files and prompt them to be deleted, and check the Download folder, which often contains forgotten APK installers and documents.
Regular cleaning helps keep your smartphone running at a high level. If you have transferred a photo to a map but your memory is still busy, check the size of the folders of messengers like Telegram or WhatsApp, which can take up gigabytes of space.