How to combine internal and external memory in Xiaomi: the complete guide

Combining internal and external memory on Xiaomi smartphones is a pressing task for users who face a shortage of space for applications, photos and videos. Despite the fact that modern models of Redmi, POCO and Mi are equipped with increasingly capacious drives, many prefer to expand memory using microSD cards. However, simply inserting a memory card is not enough: for the system to perceive it as part of internal storage, special configuration is required.

In this article, we will discuss all the available ways to combine memory on Xiaomi – from standard features. MIUI prior to alternative methods of use ADB. You will know what the requirements are for SD-How to avoid typical errors and what to do if the system refuses to format the drive (MIUI 14/15) and smartphone models, including the budget Redmi Note and flagship Xiaomi 13/14.

Why you can not combine memory Xiaomi: the main reasons

Many users are faced with the fact that the option of combining memory in the Xiaomi settings is simply missing or inactive, due to several key factors:

• 📱 Version. MIUI And the model of the smartphone. MIUI 12, Xiaomi is gradually removing support for Adoptable Storage (binding) SD-maps as internal storage for most devices. MIUI 14/15 This option is available only on a limited list of models, mainly budget.
• 💾 Type and class SD-Only microSDXC memory cards with speed class are suitable for combining. UHS-I (U1/U3) or A1/A2. Class Cards 10 marking A1 may not be supported.
• 🔧 Formatting in FAT32/exFAT. The system requires that the card be formatted into ext4 or f2fs — The file system that Android uses for internal storage. FAT32 wrong.
• 🚫 Manufacturer restrictions: Some models (e.g. Xiaomi) 12/13 Pro) does not physically support memory expansion through Adoptable Storage, even if the slot has a hybrid connector for the second SIM or SD-map.

Before trying to combine memory, check your model’s compatibility with the feature. For example, on the Redmi Note 10 Pro or POCO X3 Pro, the option is available, and on the Xiaomi 11T Pro, the option is not, despite the presence of a card slot.

⚠️ Attention: After the memory is combined SD-The card will become unreadable on other devices (PCs, cameras, etc.) and all data on it will be deleted.

Requirements for SD-mapping

Not every microSD card is suitable for use as internal storage, but here are the key options to look out for:

Pay special attention to the speed class. The A1/A2 cards are optimized for application and provide faster random read/write speeds, which is critical for Adoptable Storage. For example, the SanDisk Ultra A1 or Samsung EVO Plus U3 are reliable options for most Xiaomi smartphones.

If you use a card that is larger than 32 GB, you have to format it in exFAT before you connect to your smartphone, but the system will still reformat it to ext4 when combined.

Method 1: Memory Combination via MIUI settings (official method)

If your Xiaomi model supports Adoptable Storage, follow this instruction.The method works on most devices with MIUI 11-15, but may not be available on flagships (for example, Xiaomi 13 Ultra).

Step 1. Insert. SD-card to the slot of the smartphone. Make sure it's identified by the system. Go to Settings → Memory.

Step 2. Slap the item. SD-map (or external memory), then select Settings (image) ⚙️ top-right).

Step 3: Click Format as internal memory, the system will warn you that all data will be deleted, and confirm the action.

Step 4. After formatting, select Move Data if you want to move some applications and files to the SD-This process can take 10 to 30 minutes depending on the amount of data.

It's done! SD-The card is displayed as part of the internal memory. To check this, go to Settings. → Memory: You'll see the combined volume.

⚠️ Note: On some firmware (for example, MIUI 14 Global) Format as internal memory may not be available even on supported models, in which case try resetting to factory settings or using alternative methods (see next section).

Method 2: Combining memory via ADB (for power users)

If Xiaomi does not have formatting options SD-You can use the Android Debug Bridge tool as internal memory (ADB). This method works for most Android 6.0 devices.+, but requires a PC connection.

Step 1. Set it up. ADB-Drivers on the computer and enable debugging USB on a smartphone (Settings) → The phone. → Version. MIUI → 7 times tap on the item, then return to the Additional settings → For developers).

Step. 2. Connect Xiaomi to your PC via USB-Open the command line (or terminal) macOS/Linux). Enter the command:

adb devices

Make sure the device is identified (serial number should appear).

Step 3: Enter a command to check the connected SD-map:

adb shell sm list-disks

You'll see a disk:179,XX answer, where XX is the disk number. Remember that.

Step 4: Format the card as internal memory by the command (replace XX with your drive number):

adb shell sm partition disk:179,XX private

After the command is executed, the smartphone will automatically restart and SD-The card will be part of the internal storage.

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If the sm partition command doesn’t work, try the alternative: adb shell sm set-force-adoptable true, then repeat step 4.

This method is more versatile than standard formatting via MIUI, but requires caution. Errors in commands can lead to data loss or system failures.

What to do if Xiaomi doesn’t see it SD-post-community

Sometimes after the memory is combined SD-The card is no longer defined by the system, or there's a "memory damaged" error:

• 🔄 Incomplete formatting. If the process is interrupted, the map may become unreadable. Solution: remove the map, paste it into a PC, and format it into a computer. FAT32 through SD Formatter, then repeat the process of combining.
• 🛠️ Incompatible file system if the system failed to transfer the card to ext4, Try to format it manually through ADB: adb shell mkfs.ext4 /dev/block/mmcblk1 (substitute mmcblk1 on the current path to your map).
• 📱 Firmware failure: Some custom firmware (e.g. xiaomi.eu) may not work properly with Adoptable Storage. Solution: go back to the official firmware. MIUI or update the firmware.
• 🔋 Lack of power: If your smartphone is out of order during formatting, the card may get damaged. Always monitor the charge level (minimum 50%).

If the card is still undetectable, check it on another device, and if it can't be read even on a PC, it's likely that there's a physical failure, in which case you just have to replace the drive.

How to transfer applications to unified memory

After successful memory integration, Xiaomi automatically offers to transfer some data to the site. SD-But not all apps support this feature, so here's how to manually manage storage:

Step 1. Go to Settings → Applications → Application Management.

Step 2: Select the app you want to move and tap it.

Step 3. Press Storage, then Change (if the option is active). SD-map.

Not all programs can be ported - some (for example, system or high performance requirements) remain in internal memory. SD-The card is slower, especially if the class card is 10 marking A1/A2.

To automate the process, use third-party utilities like AppMgr III (available on Google Play), which allow you to transfer applications en masse and clear cache.

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Transfer of applications to SD-If the card is slow, it is better to leave the frequently used programs in internal memory.

Alternative ways to expand memory on Xiaomi

If memory integration is not available or suitable, consider alternative options:

• ☁️ Cloud storage: Services like Mi Cloud, Google Drive, or Yandex Disk allow you to automatically back up photos, videos, and documents. For example, Mi Cloud offers up to 100GB of free free downloads for some Xiaomi models.
• 🔌 OTG-- I'm going through the adapter. USB-C/OTG You can connect a flash drive or an external one. SSD. Read/write speed will be higher than microSD, but the media will remain removable.
• 📁 Optimize internal memory. Delete the app cache (Settings) → Memory. → Clear), transfer media files to your PC or use Lite Mode features in your PC MIUI save space.
• 🔄 Replacement of internal storage on some models (e.g, POCO F1 or Redmi Note 7) You can increase memory by installing a larger chip. eMMC/UFS. However, this requires disassembling the smartphone and risks cancelling the warranty.

For most users, the best solution is a combination. SD-media-file + Cloud storage for backups, which saves internal memory without losing performance.

FAQ: Frequent questions about memory integration on Xiaomi