The lack of internal storage is a classic problem faced by almost every owner of a budget or mid-range Xiaomi smartphone. Built-in memory is often not enough to install all the necessary applications, as well as to store a huge number of photos and videos in high resolution. Fortunately, most Redmi and POCO models support the installation of microSD memory cards, which allows you to significantly expand the available space.
The process of transferring information is not always intuitive, because the interface of the MIUI shell or HyperOS has its own features. Many users mistakenly believe that it is enough to insert the drive, but to work effectively you need to set up the system and distribute files. In this article, we will discuss in detail how to move data from internal memory to external storage, minimizing the risk of loss of information.
It's important to understand that not all types of data can be moved equally easily. If media files are handled seamlessly, then porting applications requires finer customization and, in some cases, the use of special drive modes. We'll look at all the available methods, from the standard file manager to the hidden functions of the developer.
Preparation of the device and selection of a memory card
Before you start any manipulation of the file system, you need to make sure that your equipment is ready for operation, first of all, you should check the compatibility of the smartphone with memory cards. Most modern Xiaomi models are equipped with a hybrid slot, where the second tray can be used for either a second tray. SIM-You'll have to choose one of the options if you have two active SIM cards.
The quality and speed of an external drive directly affect system performance. Using cheap maps of unknown brands can cause the phone to start running slower and photos will be stored with a delay. It is recommended to choose Class 10, U3 or V30 speed cards, especially if you plan to record video in 4K or run heavy applications.
⚠️ Warning: Always turn off your smartphone before removing or installing a memory card. Hot replacement of memory cards in modern Android devices can cause file system software failure and data loss.
Once the card is physically installed in the slot and the device is turned on, the system will automatically detect the new drive. Android will offer several use cases: as a portable storage device or as part of internal memory. For simple file storage (photos, music, documents), it is better to choose the first option, as it provides better compatibility when connecting the phone to the computer.
- 📱 Check for a MicroSD slot in your device’s SIM card tray.
- 💾 Choose a memory card up to 512GB or 1TB (depending on the model specification).
- ⚡ Make sure the card has a high-speed write marking (UHS-I higher).
- 🔌 Carefully install the card in the phone off before the characteristic click.
Configure a memory card as a portable storage
Once the drive is installed, the system will suggest formatting it, which is a mandatory procedure, since the card file system must be adapted to Android standards. During the formatting process, all data that may have been on the map before will be permanently deleted, so make sure that it does not contain important information.
In the storage settings menu, you'll see the option "Use as a portable storage" that allows you to store photos, videos, music and documents on the map. You can't transfer applications in this mode, but you can redirect the camera and voice recorder to save new files immediately to an external medium, which saves space in internal memory.
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If you plan to frequently transfer the card between different devices (camera, other phone, PC), choose portable formatting mode for maximum compatibility.
To access the drive management go to the Settings section → The phone. → Warehouse. You can see detailed statistics of the occupied space here. If the system doesn't suggest formatting the map immediately after you turn it on, look for the item «SD-map" in the list and click "Configure.The process can take a few minutes depending on the amount of storage.
- 🗑️ Click on “Clean” or “Format” in the control menu SD-card.
- 📂 Select the option “Use as a portable storage».
- ✅ Wait for the process to be completed and the successful installation confirmed.
- 📸 Set the camera to save the photo directly to the external disk.
Transferring photos, videos and music through the Explorer
The most reliable and controlled way to move media files is through the built-in Explorer app, which is simply called Explorer on Xiaomi smartphones and has a yellow icon with a folder that allows you to see the structure of files in both internal memory and on an SD card.
To transfer, open the app and go to internal memory. Find folders with content that you need to move. These are usually DCIM (camera photos and videos), MIUI/Gallery/cloud (screenshots and edits), Download (downloads) and Music. Select the files you need with a long press, then click on the Copy or Move button in the bottom menu.
☑️ Algorithm of file transfer
After selecting the Move action, the navigation menu will prompt you to select destination «SD-map" or "Device" (depending on the shell version) and select the root directory or create a new folder for convenience. click "Insert." Files will be copied and the originals in internal memory will only be deleted if you select the "Move" function rather than "Copy».
| Type of data | Location in internal memory | Where to transfer to SD | Recommendation |
|---|---|---|---|
| Photos and videos | DCIM/Camera | DCIM or Pictures | Can be moved |
| Screenshots | MIUI/Gallery/cloud | Pictures/Screenshots | Safe. |
| Downloads. | Download | Download on SD | Recommended |
| WhatsApp Media | Android/media/.../WhatsApp | Difficult (access required) | Better leave it. |
It’s important to note that moving system folders or files you’re not sure about can disrupt some applications.Never move folders with the names of Google system apps or services unless you know exactly what they’re for.
Transfer and installation of applications to SD-map
The issue of installing applications on an external memory card in modern versions of Android (starting with 6.0 and above) has been resolved ambiguously. SD-a map for security and stability reasons, but in the shell MIUI It is possible to transfer already installed applications, although this feature is not available for all programs.
To try to move the application, go to Settings. → Annexes → All applications. Select the program you want from the list. If you can transfer it, you'll see the "Move to" button. SD-If the button is grey or missing, the app developer has banned it from moving, or the application is a system component.
Why can't some apps be moved?
There is also a "memory expansion" mode when SD-The card is formatted as part of the internal memory, and in this case, the system decides where to install the applications, but this method has a serious disadvantage: the card is encrypted and linked to a particular phone, and it will not be possible to extract and read it on another device without formatting.
- 📲 Go to the settings of a particular application through the menu "All applications».
- 🔍 Look for the active button “Move to” SD-map».
- ⚙️ Consider formatting as internal storage (requires a card data reset).
- ⚠️ Remember that applications running from the card can load longer.
Automatically save new data to the map
To avoid manually transferring files every time, you can set up automatic storage of new content directly to the external drive, primarily for the camera, voice recorder and browser, which will save you from having to constantly monitor the internal memory.
In the Camera app, click on the three bars in the upper right corner and select Settings. scroll down to Save on the list. SD-Now, you can start the switch, and from now on, all the new images and videos will be taken directly to the external drive, and you can see these settings in the voice recorder and some file sharing devices.
For browsers like Chrome or the built-in Mi Browser, you can change the path to the download folder in the settings of the app itself. Find the Downloads or Save Path section and specify the directory on the app. SD-This is especially useful when downloading large files, offline navigation maps or streaming video.
⚠️ Attention: Record speed on SD-The card is usually lower than the internal memory, and when you take a photo or record a video in a series. 4K There may be buffering or a decrease in the number of frames per second.
Possible problems and ways to solve them
During operation, users may encounter card read errors or reports of damage to the drive, often due to improper card extraction or file system failure. SD-If that doesn't work, remove the map, wipe the contacts, and paste back in.
Another common problem is the slow operation of the interface after installing a large number of applications on the map, in which case it is recommended to return the most used applications to internal memory, leaving only archival data, music and rarely used programs on the external media, and it is also worth checking the map for errors using a computer.
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Regular backup of data from SD-Cards to your computer or the cloud are the only way to ensure the safety of files in the event of a failure of the drive.
If the system is constantly making an error «SD-The card is corrupted" or requires formatting, although it is read normally on the computer, it is possible that the card resource is exhausted. In this case, the only solution is to buy a new, better storage device from a trusted manufacturer.