Transfer of data to SD-The map in Xiaomi smartphones is a challenge that users face when they lack internal memory. Despite the apparent simplicity, the process has nuances: from choosing the right map format to choosing the right card format (FAT32, exFAT or NTFS) pre-tuning MIUI In this article, we will discuss all the current methods of transfer, from standard system tools to third-party applications, and also consider typical errors and their solutions.
The peculiarity of Xiaomi is that the manufacturer limits the ability to transfer applications to the SD-map MIUI (starting 12+). But for media files, documents and backups, external storage remains a great solution, and it's important to keep in mind that the speed of the card is very fast. A1/A2 significantly higher than budget counterparts – this is critical when transferring heavy files or using the card as internal memory.
Preparation SD-maps: selection and formatting
Xiaomi supports cards up to 2 TB (theoretically), but in practice the best option is 128-512 GB of UHS-I/U3 or A2. Low-end cards (Class 4/6) can slow down the system when used intensively.
Formatting is a key step. MIUI offers two options:
- 📁 Portable storage – the card is used as a removable disk (files can be transferred manually, but applications will not be installed on it).
- 🔄 Internal memory – the card becomes part of the system (applications can be ported, but the card cannot be retrieved without data loss).
Portable storage is suitable for most tasks, as it does not block the card and allows you to use it on other devices. Formatting in exFAT is preferable to FAT32, since it supports files larger than 4 GB (relevant to 4K video).
Standard transfer of files through the "Conductor"
The easiest way to transfer data is to use the built-in Explorer (Files in MIUI).
- Open the Files app (the folder icon on the desktop).
- Go to the Internal Memory section and select files/folders (long press).
- Click More → Copy (or Cut if you want to delete the originals).
- Go back to the root directory, select SD-map and paste files (Insert files).
To speed up the process, you can use batch mode: select several files or folders at the same time (for example, the entire DCIM folder with a photo). Note that some system folders (for example, Android) can be hidden - to display them, click on three dots in the upper right corner and select Show hidden files.
Check the vacant space for SD-map|Charge your phone at least 30 times%|Disable Battery Optimization for Files»|Create a backup copy of important data-->
If the files are not copied, check:
- 🔌 Connect the card (try to re-extract and insert it again).
- 📛 Map format (in) FAT32 You can't copy files. >4GB).
- 🔒 Access rights (in Settings) → Annexes → Permits to check access to the storage of "Files).
Transfer of applications to SD-map: restrictions and workarounds
V MIUI 14/15 portability SD-The card is disabled by default, and this is due to Google's policy and performance issues when working with external drives:
- Through ADB (requires PC and USB debugging):
adb shell pm set-install-location 2This command forces the system to install applications on SD-Default card. After you do, restart your phone and check the storage settings in Developer Options».
- Using third-party applications (such as AppMgr III or Link2SD).
These utilities allow you to transfer individual applications to the map, but require root rights on new versions of MIUI.
What happens if you transfer the system application to SD-map?
| Mode of transfer | Root is required. | It's working at MIUI 14/15. | Limitations |
|---|---|---|---|
| Standard settings | ❌ No. | ❌ No. | Function disabled |
| ADB-team | ❌ No. | ✅ Yes. | Not all applications are portable |
| AppMgr III | ✅ Yes. | ✅ Yes. | Requires root, paid version |
| Link2SD | ✅ Yes. | ✅ Yes. | Complex setup, risk of errors |
⚠️ Attention: Transfer of applications to SD-grade-up A1 Tests show that games and heavy applications (such as Genshin Impact or Lightroom) only work stably on maps. A2 recording speed of 10 MB/s.
Automatic transfer of photos and videos using the "Gallery"
Xiaomi offers a built-in tool for automatically saving media files on the Internet SD-To activate the map:
- Open the Gallery app.
- Go to Settings → Save photos.
- Choose. SD-map in the section Place of conservation.
- Activate the option to save new photos to the memory card.
This method is convenient for constantly transferring new images, but does not affect existing files.
- 📂 In the Gallery, select an album (e.g. Camera).
- 🔍 Press Control. → Move it.
- 💾 Point the folder to SD-map (e.g., map, DCIM/Camera).
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If after transferring photos are not displayed in the Gallery, update the media library: open the Files, go to the SD-You can create any temporary file (like a screenshot) and the system will automatically scan the drive.
For video files, the process is similar, but consider that 4K or HDR video can take up to 500 MB/min.
Transferring data over a PC: a reliable but long-term way
If the data volume exceeds 10-20 GB, transfer over the computer will be faster and more reliable. Connect Xiaomi to the PC via USB-C cable (the original cable is recommended for stable speed) and follow the steps:
- On the phone, select the data transfer mode (File transfer or MTP in the notification curtain).
- On PC, open This computer - the phone will appear as a removable disk.
- Copy files from internal memory (Internal Storage) SD-map (it will be displayed as a separate disk).
The transfer speed depends on the USB version:
- 🔌 USB 2.0 – up to 40 MB / s (old models Redmi).
- ⚡ USB 3.0/3.1 — before 500 MB/s (Xiaomi) 12/13/14).
⚠️ Note: When connecting through USB-C On some Xiaomi models (e.g. Redmi Note 11) copy protection may work DRM-Secure files (e.g. screenshots from Netflix or Disney)+). In this case, the files will have to be transferred manually through the "Conductor».
Use archivers to speed up the process (e.g. WinRAR or 7-Zip): Pack the folder with data in the.zip archive, transfer it to the SD-map, and then unpack directly on the phone using RAR for Android.
Use of third-party applications for transfer
If standard methods do not fit, you can use specialized utilities.
- 📱 Files by Google – a simple manager with the function of cleaning memory and transferring files to the Internet SD-Supports batch copying and analysis of unnecessary files.
When selecting an application, pay attention to feedback about compatibility with MIUI. For example, ES Explorer may conflict with system services on new firmware versions. Before installing, check permissions: the application must have access to Warehouse and File Management.
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The application side is convenient for automatic porting, but does not solve the problem of porting applications - this will still require ADB or root access.
To transfer backups (.bak,.zip), it is recommended to use Swift Backup (requires root). SD-card, which is convenient when resetting the phone to factory settings.
Solving Common Errors in Data Transfer
When working with SD-Xiaomi users often face the following problems:
| Mistake. | Reason. | Decision |
|---|---|---|
| «SD-map damaged» | File system is broken or card is fake | Format the card in exFAT via PC, and if the error repeats, replace the card. |
| “Not enough space” when copying | Map formatted in FAT32, file >4 GB | Reformat to exFAT or break the file into pieces. |
| Map not determined | Contacts oxidized or slot damaged | Clean the contacts of the card and slot with alcohol. Try another card. |
| Slow recording/reading | Low-class card (Class 4/6) | Replace the A1/A2 or U3 card. |
If the phone doesn't see the card after formatting, check it on another device. If the card works but doesn't recognize it on Xiaomi, update the firmware: some versions of MIUI have bugs that support exFAT. Go to Settings → About Phone → System Update.
To diagnose card speed, use the A1 SD Bench app. If the write speed is below 10 MB/s, the card is not suitable for porting applications or high-resolution video.