How to transfer Xiaomi phone memory to memory card: full guide 2026

Xiaomi smartphone owners (including the Redmi line and the POCO) Often, they face a lack of internal memory, especially if the device comes with a 32 or 64 GB drive, the solution is to use a microSD card, but simply inserting it into the slot is not enough. You need to configure the system properly so that applications, photos and files are saved to an external medium. SD-map, including hidden settings MIUI, Avoiding limitations and solving common mistakes.

It’s important to understand that not all Xiaomi models support full formatting of the card as internal memory (Adoptable Storage function). MIUI, We will show you how to circumvent the restrictions by legal means and what to do if the system refuses to see the map, and you will also learn which Xiaomi models (for example, Redmi Note 11 or the other two). POCO X5) They are best supported by the work with SD-Maps, and in which cases it is easier to buy cloud storage.

What Xiaomi models support memory transfer to the card

The functionality of memory cards in Xiaomi smartphones depends on three factors: the version of Android, the firmware MIUI and the hardware platform.

• 📱 Old models (up to) 2019 of the year: Redmi 4X, Redmi Note 5, Mi A1/A2 — Adoptable Storage (the card is formatted as internal memory).
• 📱 Modern budgetary (2020–2023): Redmi 9/10, POCO M3/M4 — only partial transfer (photos, videos, some applications).
• 📱 Flagships and the middle segment: Xiaomi 12/13, Redmi Note 11 Pro – often lacks microSD slot (only hybrid slot versions).
• 📱 Models with a hybrid slot: POCO X3 NFC, Redmi Note 8 Pro – You can use the second one SIM, memory-card.

For a full list of supported devices, see the table below. Please note that even if your model is on the list, MIUI firmware can block some features. For example, in Redmi Note 10 Pro, the option of formatting a card as internal memory is hidden in the engineering menu.

Critical nuance: smartphones on MediaTek processors (for example, Redmi Note 11 with Helio) G88) Often have problems with work SD-map UHS-II — The system may not see the card or permanently reset the connection.

Preparation of a memory card before data transfer

Before you set up your phone, you need to properly prepare the microSD card itself, and errors at this point will either cause the system to fail to see the carrier or constantly produce reading errors.

Check the speed class (UHS-I Class 10 or higher is recommended)

Format the map in FAT32/exFAT on PC

Make sure the card is not more than 80% full.

Use the adapter to check for errors (via chkdsk)

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Follow the instructions:

1. Compatibility check: SDHC cards (up to 32 GB) and SDXC (64-1 TB) work on all Xiaomi models, but for Adoptable Storage it is better to choose a volume of no more than 256 GB - the system can work unstable with 512 GB+ cards.
2. Formatting: If the card is new, format it into FAT32 (for cards up to 32 GB or exFAT (64 GB)+). Use the official utility SD Card Formatter from SD Association.
3. Error Check: Connect the card to your PC, open Command Prompt on behalf of the administrator, and execute: chkdsk E: /f /r (replace E: with the letter of your drive).
4. Speed test: Use CrystalDiskMark – the minimum write speed should be at least 10 MB / s, otherwise applications will slow down.

⚠️ Warning: Do not buy memory cards of unknown brands (for example, "NoName" or "Transcend without a logo"). counterfeits under SanDisk or Samsung often have a real volume of 2-4 times less than claimed and fail after 3-6 months.

Method 1: Formatting a card as an internal memory (Adoptable Storage)

This method allows us to make SD-The card is part of the internal storage, but does not work on all Xiaomi models.If the option is not available in standard settings, try to bypass the restriction through the ADB.

Instructions for models with support (POCO X3, Redmi Note 8, etc.):

1. Put the card in the phone and wait for identification.
2. Go to Settings → Memory → Memory Map.
3. Stick to three points (⋮) in the upper right corner and select Storage Settings.
4. Choose Format as internal (in some firmwares, the option is called Use as internal memory).
5. Confirm the action. All data on the map will be deleted!
6. After formatting, select Transfer Data (if available) or do it manually.

If the item is not formatted as internal, use ADB-team:

1. Install Minimal ADB and Fastboot on PC.
2. Turn on USB debugging in the developer settings (Settings → About Phone → MIUI version – tap 7 times).
3. Connect your phone to your PC and run in ADB: adb shell sm list-disks Remember the disk ID (e.g., disk:179.64).
4. Execute the formatting command (replace the identifier): adb shell sm partition disk:179.64 private
5. Reboot the phone.

⚠️ Note: Once formatted as internal memory, the card cannot be read on other devices without completely erasing the data. Also, do not remove the card without first “disabling” the settings, this will damage the file system.

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If the phone is slowing down after formatting, check the card speed class. Adoptable Storage recommends UHS-I Class 10 (U1) or higher. C4/C6 cards can cause delays when launching applications.

Method 2: Transfer files and applications to SD-formatting-free

If your Xiaomi model doesn’t support Adoptable Storage, you can transfer individual files and some applications to the map, which is less efficient but safer – the card can be retrieved and used in other devices.

How to transfer photos, videos and documents:

1. Open Files (app) MI File Manager).
2. Go to Categories → Images (or Videos, Audio)
3. Select the files, tap More → Move.
4. Select a Memory Card and confirm.

How to move applications (not work for all programs):

1. Go to Settings → Applications → Application Management.
2. Select an app (such as WhatsApp or Telegram).
3. Slip the vault. → Change. → Memory map.
4. Confirm the transfer. Some apps (like Facebook) don't support this option.

Limitations of the method:

• 🚫 System applications cannot be moved.
• 🚫 Some games, for example, PUBG Mobile refuses to work from the card.
• 🚫 Data transfer does not free up internal memory completely – some files remain in the cache.

Method 3: Using a memory card as a portable storage device

If you don’t need to port apps, but only need to expand space for photos, music and documents, set up the map as a portable storage method that works on all Xiaomi models and does not require formatting.

Instructions:

1. Put the card in the phone.
2. In the notification that appears, select Use as a portable storage (or go to Settings → Memory → Memory Map → Settings → Portable storage).
3. Assign folders by default: Open Camera → Settings → Storage → Memory Map. In Google Photos, go to Settings → Backup and Sync → Device folder → Memory Map.

Advantages of the method:

• ✅ The card can be retrieved and used on other devices.
• ✅ No risk of data loss when resetting your phone.
• ✅ Compatible with all Xiaomi models.

Disadvantages:

• ❌ Applications cannot be moved to the map.
• ❌ Some programs (such as WhatsApp) do not allow you to save media files on the Internet. SD.

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Portable storage is the safest way to use SD-It doesn't solve the problem of lack of memory for applications.

Solving Common Mistakes When Working with a Memory Card

When you set up SD-Xiaomi users often encounter errors. Let's analyze the most common and ways to eliminate them.

If the card is not defined at all, follow the following steps:

1. Check the card on another device (phone, PC, camera).
2. Clean the contacts of the card and the phone slot with a dry soft brush.
3. Update your MIUI firmware to the latest version.
4. Reset your phone settings (Settings → Additional → Reset) if the error appears after the update.

⚠️ Note: If the phone starts to spontaneously reboot after formatting the card as internal memory, it is likely that the card is incompatible with firmware. Return it to portable storage mode or replace it with a model from SanDisk or Samsung.

Alternative ways to expand memory in Xiaomi

If the data is transferred to SD-The card has not solved the problem of memory shortage, consider alternative options:

• 🖥️ Cloud storage: Google Photos (unlimited space for compressed photos), Mi Cloud (5 GB free), Yandex Drive (10 GB). Set up automatic upload of photos over Wi-Fi.
• 🔄 OTG-Drivers: Connect the flash drive through USB OTG-adapter. MIUI The flash drive is defined as a removable disk, and you can transfer files to it.
• 📱 Cleaning the system: Use the built-in Cleanup utility (Settings) → Memory. → Cleaning) to remove cache and unnecessary files.
• 🔧 Root access: Magisk can force any application to be transferred to SD-card (requires unlocking of the loader).

For models without a microSD slot (e.g. Xiaomi) 13 or Redmi K50) The only options are cloud storage or OTG-You might also consider buying a phone with a lot of internal storage (128/256 GB) if you are actively shooting videos in 4K or set up a lot of games.

FAQ: Frequent questions about transferring memory to the map in Xiaomi