How to transfer files to SD-Map in Xiaomi smartphones: the full guide 2026

Owners of Xiaomi, Redmi and Poco smartphones sooner or later face a lack of internal memory - especially if the device is equipped with only 32 or 64 GB of storage. The microSD card becomes a salvation, but how to transfer files to it so as not to lose data and slow down the phone? In this article, we will analyze all the current methods for modern versions of MIUI 12-15, including nuances for different types of files: photos, videos, music and even applications.

It is important to understand that Xiaomi limits some functions of working with the company. SD-Maps due to Google's security policy (starting with Android) 6.0). For example, transferring applications to a memory card is no longer possible for all models, and the read/write speed depends on the class. SD-map (A1/A2, U1/U3). We will discuss in detail which cards are suitable for Xiaomi, how to avoid errors during transfer and what to do if the phone does not see files after copying.

Preparation: which SD-Choose a map for Xiaomi

Before you transfer files, make sure your microSD is compatible with your phone. Xiaomi officially supports cards up to 2TB (in practice up to 1TB due to the limitations of the exFAT file system), but there are nuances:

• 🔹 Speed class: For video recordings in 4K Frequent file transfers or select cards UHS-I U3 or A2. Class cards U1 Class 10 is suitable only for photos and music.
• 🔹 Formatting: Xiaomi is working with FAT32 (up to 32 GB), exFAT (64 GB) and NTFS (rarely, only for external drives. It is better to format the card directly in the phone through Settings → Warehouse.
• 🔹 Brands: Best Options – SanDisk Ultra, Samsung EVO Plus or Kingston Canvas. Cheap cards without a brand are often forged, indicating inflated volume.

⚠️ Note: If you buy a card in volume 128 GB or more, check it for authenticity with the utility h2testw (Windows or F3 (Linux/Mac). Counterfeiting can “deceive” the system, showing a non-existent free space, and when writing files – damage them.

2. Method 1: Transfer files through the built-in file manager

The easiest method is to use Xiaomi’s standard File Manager, which is preinstalled on all devices with a file manager. MIUI and supports basic operations with SD-map.

Instructions:

1. Open the Files app (the folder icon on the desktop).
2. Go to Device (Inner Memory) and find the folder with the files you want to transfer (for example, DCIM for photos or Download for downloads).
3. Press and hold the file/folder, then select the rest (or click Select All).
4. Slip the Move button (the arrow folder icon) in the lower menu.
5. At the top of the screen, select SD-map, then specify the target folder (or create a new one).
6. Confirm the transfer with the Insert button.

🔹 Features of the method:

• 📁 It works for any file (photos, videos, documents, music) but not for applications.
• ⏱️ The speed of transfer depends on the class SD-Class 4 cards can copy 1 GB of data for up to 5-7 minutes.
• 🔄 If the file is used by the system (for example, wallpaper or alarm clock melody), it cannot be moved.

Method 2: Transfer over a PC (the most reliable method)

If you want to transfer a lot of data (tens of gigabytes), you better use a computer, which is faster than a phone's file manager, and avoids copying errors.

Step-by-step:

1. Connect Xiaomi to your PC via USB-cable (preferably original).
2. On your phone, select File Transfer (MTP) Connectivity Mode in the USB Notification.
3. On PC, open Explorer (Win + E) and find your phone in the This Computer section.
4. Copy files from your phone’s folders (e.g., Internal Storage → DCIM) to your computer (temporary folder).
5. Put it in. SD-card to the computer via card reader or adapter.
6. Transfer files from PC to PC SD-Then take the card out safely.

⚠️ Note: If Xiaomi doesn’t show up on PC, check it out:

• 🔌 Cable (not all cables support data transfers – some only charge).
• 🔄 Regime. USB: In Settings → Connected devices → USB choose MTP.
• 🖥️ Drivers: Older PCs may require Mi installation PC Suite.

💡

If the speed of copying is through USB It is too low, try to use it. OTG-Adapter and card reader, that bypasses protocol limitations. MTP and accelerates the transfer by 2-3 times.

Method 3: Transfer applications to SD-map (with limitations)

Unlike older versions of Android, modern Xiaomi smartphones do not allow you to fully transfer applications to the Internet. SD-Card as internal memory (Adoptable Storage is disabled in the MIUI). But there are workarounds:

Option 1: Portal of part of the annex data

1. Open Settings → Applications → Application Management.
2. Select an application that supports transfer (such as cache games).
3. Slip the vault. → Change. → SD-map.
4. Confirm the transfer. Not all apps support this feature — most system and social networks (WhatsApp, Telegram) cannot be migrated.

Option 2: Use SD-card as a portable storage device

• 📱 Install. SD-card to your phone and format it as a portable storage (not internal!).
• 🎮 Some games (such as Genshin Impact or Call of Duty Mobile) allow you to manually specify the path to the cache. SD-map.
• 📁 Move it. APK-App files are on the map, then install them from there (but updates will be downloaded to internal memory).

⚠️ Attention: Transfer of applications to SD-The card can slow them down, especially if the card is Class 10 or lower.

5. Method 4: Automatic transfer of photos and videos from the camera

If you shoot on Xiaomi often, you can set up automatic saving of new photos and videos directly to the camera. SD-It'll save you from manual transfer.

How to turn on:

1. Open the Camera app.
2. Tap it on. ⚙️ Settings → Warehouse.
3. Choose. SD-map in the section Save in.
4. Confirm your choice. All new images will now be saved to the memory card.

🔹 nuance:

• 📸 It only works for new photos/video, and old files will remain in internal memory.
• 🎥 Video in the video 4K Slow Motion may not be saved to SD-The card, if it is not fast enough.
• 🔄 If you pull the card, the camera will automatically switch to internal memory.

💡

Automatic saving on SD-The card saves space in internal memory, but does not replace backup. Regularly check the integrity of files on the map!

Method 5: Transfer over the cloud (for backup)

If you need to not just transfer files but back them up, it’s easier to use cloud services. Xiaomi offers two options:

Option 1: Mi Cloud

• 🌥️ Free gives 5 GB (can be expanded to 200 GB for a fee).
• 📁 Automatically synchronizes photos, contacts and notes.
• 🔄 Transfer files from the cloud to the SD-map:

Option 2: Google Photo

• ☁️ Free storage for photos in compressed quality (originals take up space in Google Drive).
• 📱 To download files to SD-map:

⚠️ Note: Cloud services are not a substitute SD-They're good for backups, but they're good for permanent storage:

• 📶 Requires a stable Internet for downloading / downloading.
• 💰 Free space is limited (for example, Google Photos from June 1, 2021 considers all photos in their original quality as part of the Google Drive quota).
• 🔒 It is better not to store confidential files in the cloud.

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

When transferring files to SD-Xiaomi cards can be made in error. Let's look at the most common and their solutions:

🛠️ Additional advice:

• 🔋 If the phone is discharged during transfer, connect it to charging – interrupting the process can damage files.
• 📶 When copying large files (>4 GB) Shut down the mobile Internet – this will speed up the process.
• 🔄 If the card is full but the files are not displayed, check it for viruses (for example, through Dr.Web CureIt!).

⚠️ Note: When reinstalling WhatsApp, restore chats from SD-You can only manually restore cards – automatic recovery works only with Google Drive or internal memory.