Owners of modern Xiaomi and Redmi smartphones often face a lack of built-in storage. High-resolution cameras and a growing volume of applications are quickly filling the available space, forcing them to look for solutions. One of the most effective ways to unload is using an external microSD drive.
Moving data to an external medium not only frees up gigabytes, but also speeds up the operating system. MIUI, Xiaomi’s proprietary shell, provides flexible tools for managing the file system. In this article, we’ll take a look at all the ways to transfer content, from standard tools to advanced methods.
And also, the right file allocation allows you to save important data when you flash or reset your settings, and you learn how to safely extract the map and avoid common errors that can lead to loss of information. Let's start optimizing your device.
Preparation of memory card and smartphone for work
Before you start transferring data, you need to make sure your Redmi supports the installation of an additional drive.In most models, the slot is combined, so it is important to carefully insert SIM-The card and microSD, so that the contacts are not damaged, and after the physical installation, the system must recognize the new media.
When you first connect, Android will suggest formatting the map, which is a must-have procedure, as the file system must be adapted to work with the mobile device. Note that formatting will delete all existing data on the map.
It's important to format.
To ensure stability, it is recommended to choose cards of a class at least Class 10 or UHS-I. Slow drives can cause delays when running applications or playing high-quality video.
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Use memory cards up to 256GB for maximum compatibility, although many modern Redmi models support both 512GB and 1TB.
Using a built-in conductor to move files
The easiest and safest way to migrate files is to use Xiaomi’s standard Explorer app, which is pre-installed on all devices and has an intuitive interface. To get started, open the app and find a section containing your files, such as Images or Video.
Select the files you need with a long press, and at the bottom of the screen, you'll see an action menu where you can select the "Move" or "Copy" option, and the difference is significant: moving removes the original from internal memory, and copying creates a duplicate.
☑️ Transfer algorithm through conductor
Once you select the target folder on the external drive, confirm the action. The process of copying large video files can take time, during which it is better not to switch between heavy applications.
Setup the camera to save photos and videos on SD
To avoid transferring each new image manually, it is easier to immediately set the camera to save media files to an external medium. 4K-High-resolution video and serial photos.
Open the Camera app and click on the menu icon (three bars) in the top right corner. In the list that appears, look for Settings. Scroll down the list of options to the memory section.
Activate the switch "Save to" SD-Now all new pictures will be automatically recorded along the way. /storage/sdcard1/DCIM/Camera (The path may vary depending on the version. MIUI). The old photos will remain in the internal storage.
It’s worth noting that some shooting modes, such as “Cinema Effect” or very high bitrate recording, can ignore this setting and save data internally due to card write speed limits.
Transfer of applications and games to external storage
Unlike multimedia, porting applications in modern versions of Android and MIUI Not all programs support this feature, and developers often block the ability to install on the site. SD-map.
You can check the portability through the settings. Go to Settings. → Annexes → All applications. Select the program you want from the list and find the "Move to" button. SD-If the button is grey or missing, the developer has banned the action.
For large-caches games (e.g. PUBG, Genshin Impact), the situation is similar. However, some file managers allow you to manually transfer cache folders (usually located in Android/obb or Android/data) to the map, creating symbolic links, but this requires root rights and is dangerous to the stability of the system.
⚠️ Note: Forced transfer of system applications or programs that are not designed to work from external media can lead to their incorrect operation, departures or complete failure to launch.
If you do decide to experiment, make sure to back up important data. Using third-party portability utilities (such as App2SD) can help in cases where standard system tools block the action.
Comparison of data storage methods
Understanding the differences between internal memory and SD-The card will help you make the right decisions about where to store specific types of files (eMMC/UFS) It has a much faster reading and writing speed.
External memory cards, even fast ones, are inferior to built-in storage in performance, which affects the speed of downloading applications, video rendering and heavy gaming, so it is better to leave data critical for speed inside.
| Parameter | Internal memory. | SD-map | Cloud storage |
|---|---|---|---|
| Reading speed | High (up to 2000 MB/s) | Medium (up to 100 MB/s) | Depends on the Internet. |
| Reliability | Tall. | Average (loss risk) | Tall. |
| Cost of GBB | Included in the phone price | Low. | Monthly subscription |
| Portability | Only with a phone. | We can move it. | Access from everywhere |
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Optimal strategy: store applications and active projects in internal memory, and archive photos, music and documents transfer to the internal memory. SD-map.
Safe recovery and maintenance of the storage device
One of the most common causes of corruption (damage) of the file system is the extraction of the card without first turning off the system. Android actively uses background recording processes, and a sharp break in contact can lead to data loss.
To safely remove the drive, lower the notification curtain from top to bottom. USB-storage SD-Click on the button "Safe Retrieve" or "Disable" and only after a successful shutdown message appears, you can remove the slot.
Check the status of the memory card regularly. You can run error checks in the storage settings (Settings → Memory). If the system reports damage, try formatting the card on your computer using the SD Formatter utility.
⚠️ Note: If the phone stops seeing the map or files start to appear as corrupt, do not write new information to it.