How to transfer data from SD- cards to Xiaomi phone: the complete guide 2026

Transferring files from the SD- card to the internal memory of the Xiaomi smartphone is a challenge that every second owner of the brand’s devices faces. Despite the apparent simplicity, the process has nuances, from the limitations of the file system FAT32/exFAT to the features of working with MIUI on different models (Redmi Note 12, POCO X5, Mi 11). In this article, we will analyze all the current methods, from the standard conductor MIUI to the hidden functions ADB, which will allow you to transfer data without loss of quality and folder structure.

We will focus on common errors: why files can disappear after copying, how to avoid fragmentation when working with large videos (4K/60FPS), and what to do if the system produces an error "Not enough space" in the presence of free gigabytes. For convenience, we have compiled a comparative method table indicating the transfer speed and compatibility with different versions of MIUI (including MIUI 14 and HyperOS).

If you use a SD- card as internal memory (Adoptable Storage function), the transfer process will be different — we will discuss this in a separate section. Also consider alternative solutions for cases where the smartphone does not see the card or emits an error "SD- card is damaged." All instructions tested on current firmware 2026 year.

Preparation for transfer: what to check before copying

Before you start transferring data, make sure your SD- card and Xiaomi smartphone are ready for surgery.Neglecting these steps can lead to file loss or card damage.

First, check the file system of the card:

• 📁 FAT32 – Supports files up to 4GB, is suitable for photos and documents, but not for video 4K.
• 📁 exFAT/NTFS — no file size restrictions, but requires support from a smartphone (on Xiaomi, MIUI 12+ works stably).
• 🚫 ext4 — not readable by most smartphones, only used on Linux systems.

To learn the file system, insert the card into your computer and see the disk properties (This computer → Properties).

Second, consider the space available on your smartphone, even if you have 32 GB of data on your card and 64 GB on your phone, you can block copying because of fragmentation.

• 🧹 Clear the app cache (Settings → Apps → Clear the cache).
• 📱 Reboot your phone, it will reset temporary files that are taking up memory.
• 🔍 Use the built-in memory analyzer (Settings → Memory) to search for junk files.

⚠️ Warning: If you transfer files from an Adoptable Storage card, do not retrieve it during the process, which can result in the loss of all data on the card and the malfunction of the applications installed on it.

Finally, back up important files, and even if you copy them correctly, you may experience failures (e.g., a sudden battery drain).

• ☁️ Upload files to Xiaomi Cloud (Settings → Mi Account → Cloud).
• 💻 Copy data to a computer via a card reader.
• 🔄 Use third-party services (Google Drive, Mega) for duplication.

2 Method 1: Standard conductor MIUI (the simplest method)

The MIUI integrated file manager is the most secure and versatile way to transfer data, which works on all Xiaomi models, including Redmi, POCO and Mi, and does not require additional applications to be installed, the main advantage is the preservation of folder structure and file metadata (dates of creation, photo tags).

Step-by-step:

1. Open the Files app (the folder icon on the home screen).
2. In the Device section, select the SD- card (may be called External Memory).
3. Find the files or folders you want to move. To highlight a few items, hold your finger on the first file, then mark the rest.
4. Click on the three dots in the top right corner and select Copy (or Cut if you want to remove the originals from the map).
5. Go back to the root section and select “Inner Memory” (or a specific folder, such as DCIM for a photo).
6. Click "Insert" and wait for the process to be completed.

The speed of copying depends on the class. SD-map:

• 🐢 Class 10 (up to 10 MB/s) — ~5 minutes on 1 GB of data.
• 🚀 UHS-I (U3) (up to 90MB/s) — ~1 minute per 1GB.
• ⚡ A2 (optimized for applications) – read/write speeds up to 160 MB/s.

Xiaomi with MIUI 14+ supports parallel copying, which speeds up the process by 30-40%.

⚠️ Warning: If you copy a file too big, your SD- card is formatted to FAT32, the solution is to reformat it to exFAT (see section 5) or to transfer files in parts (e.g., split the video 4K into 3.9GB segments).

Check the free space on your phone.|Close the background applications (especially messengers)|Turn off the power saving mode|Connect the charger (for long-term operations)|Create a backup of important files-->

Method 2: Using a computer (for large amounts of data)

If you want to transfer 10+ GB of data (for example, a video collection or RAW-photo), it is faster and more reliable to do it through a computer. This method is also useful if Xiaomi does not see the SD- card or gives errors when copying.

You'll need:

• 🖥️ Computer with Windows/macOS/Linux.
• 🔌 Type-C cable (for modern Xiaomi) or Micro-USB (for older models).
• 💾 Card reader (if the smartphone does not recognize the card).

Instructions for Windows:

1. Connect Xiaomi to your computer via cable. In the phone's notification menu, select File Transfer (or MTP) mode.
2. Open This Computer and there will be two disks: the phone’s internal memory and the SD- card.
3. Copy files from the card to the computer (for example, to the desktop).
4. Transfer data from your computer to Xiaomi’s internal memory.

MacOS requires Android File Transfer (official software from Google). On Linux, the smartphone connects as a MTP- device — use Nautilus, Dolphin or the mtpfs command in the terminal.

Advantages of the method:

• ⚡ Transfer speeds 2-3 times faster than when copied directly on the phone (up to 40MB/s to USB 3.0).
• 🛠️ The ability to check files for viruses before the penos.
• 🔄 It is easy to break up large files into pieces (e.g. using 7-Zip or WinRAR).

💡

If your computer doesn’t see the SD- card through your smartphone, remove it and insert it into the card reader, which will fix problems with the MTP drivers and speed up data transfer.

Method 3: Transfer over ADB (for power users)

If standard methods don’t work (for example, due to MIUI failure or file system damage), you can use Android Debug Bridge (ADB), which requires command line skills, but allows you to carry data even when you lock the screen or system errors.

Preparation:

1. Turn on developer mode on Xiaomi: Go to Settings → About Phone. Press 7 once on "MIUI Version" until the notification "You became a developer" appears.

"Debugging by USB"

Settings → Additional → For Developers

ADB Tools

website

Transfer commands:

adb pull /storage/XXXX-XXXX/DCIM/ /Users/YourName/Desktop/backup/


adb push /Users/YourName/Desktop/backup/ /storage/emulated/0/DCIM/

Where:

• XXXX-XXXX is a unique identifier for your SD- card (you can find out by adb shell ls /storage/ command).
• /Users/YourName/Desktop/backup/ - The path to the folder on your computer.
• /storage/emulated/0/ is Xiaomi's internal memory.

Advantages of ADB:

• 🔧 Works even when the screen is damaged (if debugging is enabled).
• 📁 Stores all file attributes (creation time, access rights).
• 🚫 Bypasses the MIUI limitations on copying system files.

⚠️ Warning: Do not use ADB to transfer files from /data/data/ or /system/ folders — this may result in application failure or resetting MIUI.

Method 4: Formatting SD-The card is an internal memory (adoptable storage)

Adoptable Storage (built into Android 6.0+) allows you to use the SD- card as part of internal memory, which is convenient if the phone is constantly running out of space, but has a number of limitations:

• 🔒 The card is encrypted and becomes unreadable on other devices.
• 🔄 After retrieving the map, the applications installed on it will cease to work.
• ⚠️ Not all Xiaomi models support the feature (e.g., on POCO F3 it is disabled by the manufacturer).

How to turn on Adoptable Storage:

1. Put it in. SD-smartphone-card.
2. Go to Settings. → Memory. → SD-map.
3. Click on three dots in the corner and select "Memory Settings".
4. Tap "Format as internal" and confirm the action.
5. Select which data to transfer to the map (applications, photos, files).

After formatting:

• 📱 Applications can be transferred to the map through Settings → Applications → [Select App] → Memory → Modify.
• 📷 Photos and videos are automatically saved to the card if you select it as the default storage location in the camera settings.
• 🔄 To return to normal mode, the card must be formatted again (data will be deleted!).

Comparison with the usual use of the SD- card:

💡

Adoptable Storage is only suitable for permanent card use in one phone.If you often move the SD- card between devices, this method is not recommended.

6 Method 5: Third-party file managers (alternatives to the MIUI conductor)

If you don’t like standard MIUI Explorer (for example, because of slow operation or lack of features), you can use third-party applications. They offer additional features: cloud synchronization, compression of files before the penos, checking for duplicates.

Top.-3 File Manager for Xiaomi:

1. Solid Explorer 🌐 Dual-panel interface for easy copying. 🔐 Support for encrypted archives (ZIP/AES). ☁️ Integration with Google Drive, Dropbox.
2. FX File Explorer 🛠️ Built-in ROOT- conductor (for advanced users). 📡 Support FTP/SFTP for remote access. 📊 Space analysis with visualization.

Mixplorer

• 🎨 Complete customization of the interface.
• 🔍 Search by file content (including PDF and DOCX).
• 📲 Support for MIUI-theme.

⚠️ Warning: Some managers (e.g., ES Explorer) contain ads and may request unnecessary permissions. Check reviews and ratings on Google Play before installing. For Xiaomi with MIUI 14+, we recommend using only trusted applications to avoid conflicts with system services.

7. Problem Solving: What to Do If Files Are Not Portable

Even if you follow the instructions correctly, you can get errors, and let's look at the typical problems and their solutions.

1 problem: The phone doesn't see the SD- card.

• 🔌 Reboot your smartphone with an inserted card.
• 🔧 Check the card on another device (e.g., on a computer via a card reader).
• 🛠️ Update the firmware MIUI — older versions had bugs that supported exFAT.
• 🔄 Format the card in FAT32 (if it is in NTFS).

Problem 2: The “Not enough space” error when there is free space.

• 🧹 Clear the Download folder and app cache.
• 📂 Transfer files in small batches (by 1-2GB).
• 🔧 Check the internal memory file system through the adb shell df -h (must be at least 10% of free space).

Problem 3: Files are copied but not opened on the phone.

• 📌 Check file extensions (e.g.,.mp4 instead of.mp4.part).
• 🔍 Install a playback application (e.g., VLC for video or WPS Office for documents).
• 🔄 Recode files on your computer (e.g., through HandBrake for video).

Problem 4: Slow copy speed (1-2 MB/s).

• ⚡ Use a card reader with support for UHS-II.
• 🔌 Connect your smartphone to charging — MIUI limits performance when battery power is low.
• 📵 Turn off mobile internet and Wi-Fi while copying.