How to open and use a memory card in a Xiaomi phone: 5 proven ways

Did you put a microSD in a Xiaomi smartphone but don't see it on the drive list? Or did the phone not recognize the memory card when everything worked before? This problem is familiar to many owners of Redmi, POCO and Mi devices — especially after updating MIUI or resetting. In 90% of cases, the solution takes less than a minute, but requires knowledge of the nuances of working with external media in Xiaomi firmware.

In this article, we will analyze all possible ways to access the memory card - from basic (through a standard conductor) to advanced (connect to a PC in mode). MTP). We will focus on the typical mistakes that Xiaomi does not see. SD-If you use the card as an internal memory, you'll find the actual instructions here.

For example, in MIUI 14, the path to settings for drives has changed compared to MIUI 12, and in some models (for example, POCO F5) there is no microSD slot – check the specifications of your device before starting.

Basic method: Opening the card through a standard conductor

The easiest method is to use the built-in Files app (or Explorer in older versions of MIUI), which is pre-installed on all Xiaomi smartphones and supports external drives.

1. Open the Files app (the icon with the folder on the home screen or in the app menu).
2. At the top of the screen, tap the Device section (or Local Storage in MIUI 12).
3. Scroll down the list and you should see two sections: “Inner Memory” and "SD-map (or) sdcard1).
4. Click on the name of the memory card and its contents will open.

If the section "SD-"No map" is missing, check it out:

• 🔍 Is the card inserted correctly in the slot (sometimes it is not fully fixed).
• 📱 Does your Xiaomi model support external drives (for example, POCO X6 The Pro does not have a microSD slot).
• 🔄 Restart the phone – sometimes the system does not recognize the card immediately after insertion.

💡

If the memory card is displayed but the files are not readable, try connecting it to your computer via a card reader, possibly a problem with the file system (e.g. exFAT is not supported on some Xiaomi devices).

2. Set up a memory card as an internal or external drive

In MIUI, the memory card can work in two modes:

1. Portable storage – files are stored separately from internal memory, they can be easily transferred to another device.
2. Adoptable Storage – The card is formatted and becomes part of the system (expands memory for applications).

If you just inserted a card, the system will suggest you select a mode, if you missed this step or want to change the settings:

1. Go to Settings. → Memory.
2. Tap your name on it. SD-maps (e.g. SanDisk) 128GB).
3. Select "Settings" (Icon) ⚙️ top-right).
4. Here you can: 🔄 Change the mode of use (from portable to internal and back). 🗑️ Format the map (Warning: All data will be deleted!). 📊 View information about free space.

Importantly, if you format a card as internal memory, it can’t be retrieved without losing data, and some apps (like WhatsApp) may not work properly with Adoptable Storage.

3. Access to the memory card via PC (MTP mode)

If the phone can't see the card, but it's good, try connecting the smartphone to your computer in MTP (Media Transfer Protocol) mode, which will allow you to check the contents of the drive via Windows or macOS:

1. Connect Xiaomi to your PC via USB-cable (preferably original).
2. On the phone in the notification panel, select the File Transfer (or MTP) mode.
3. On your computer, open "This Computer" (Windows) or "Finder" (macOS).
4. The list of devices should appear yours. SD-card (usually as a separate drive, such as Xiaomi Redmi (E:)).

If the map is not displayed:

• 🔌 Try another one. USB-cable.
• 🔄 Reboot both devices.
• 🛠️ Update the drivers MTP on a computer (in Windows, this can be done through Device Manager").

Up to 32GB|64GB|128GB|256GB and more|Do not use-->

4. Problems with card recognition: causes and solutions

If Xiaomi doesn’t see microSD, the reasons could be both software and hardware, and we’ve compiled some of the most common scenarios and ways to address them:

If none of the methods worked, check:

• 📱 Card compatibility with your Xiaomi model (some devices only support cards up to 128GB).
• 🔧 Updates MIUI — In new versions, errors are often corrected. SD.
• 🛠️ Physical state of the card slot (dust, oxidation of contacts).

Check the card on another device|Update. MIUI last-minute|Format the map in FAT32|Clean the slot from dust with a dry brush|Try another memory card.-->

5. Use of a memory card as an internal storage (Adoptable Storage)

Adoptable Storage allows you to expand the internal memory of the phone due to microSD. This is convenient if the device has little space for applications, but there are nuances:

1. The card will be encrypted and linked to the phone – it will not be read on another device.
2. Some apps (such as Google Play Services) may not work with Adoptable Storage.
3. The speed depends on the card class (UHS-I Class 10 or higher is recommended).

To set up the card as an internal memory:

1. Put the card in your smartphone.
2. When a notification appears, select "Use as internal memory".
3. Confirm the formatting (all data will be deleted!).
4. Wait until the process is completed (may take a few minutes).

If the option does not appear:

• 🔄 Restart your phone and try again.
• 📱 Check if your model supports the Xiaomi Adoptable Storage (e.g., in the POCO X3 Pro this function is disabled).
• 🛠️ Update. MIUI last-minute.

💡

Formatting the card as internal memory is irreversible – it can’t be used on other devices without completely erasing the data.

6. Alternative ways to work with a memory card

If standard methods don’t work, try these options:

Method 1: Using a third-party file manager

Applications such as Solid Explorer or "FX File Explorer often works better with external drives than standard conductor MIUI. They show hidden files and support ROOT-Access (if it is on your device).

Method 2: Connecting through OTG-adapter

If the microSD slot is damaged, you can connect the card via USB-OTG and card reader.

1. Buy it. OTG-Adapter (any adapter compatible with the USB-C or micro-USB).
2. Connect the card reader with SD-card to the adapter and the adapter to the phone.
3. Open the conductor – the card should be defined as an external drive.

Method 3: ADB commands for forced mounting

For power users: if the card is defined by the system, but not mounted, you can try to force it to mount through ADB:

adb shell


sm list-volumes




sm mount -o rw,remount /dev/block/vold/179:X

Where X is your card ID (learn it from the sm list-volumes command).

💡

Before use ADB Turn on "Debugging by" USB" in the developer settings (Settings) → The phone. → Version. MIUI — press 7 times).

7. Frequent mistakes and how to avoid them

Xiaomi memory cards have a number of pitfalls, and here are some of the most common user errors and ways to prevent them:

⚠️ Warning: Never remove a memory card while writing data (e.g. when transferring files or updating applications) This can cause file system damage and data loss.

• 🚫 Using cheap maps from unknown brands, they often have low write speeds and quickly fail. A1 or A2.
• 🔄 Frequent formatting. Each formatting cycle shortens the life of the card.
• 📱 Ignoring updates MIUI. In new versions of firmware often correct errors of work with SD. Check for updates in Settings → The phone. → Updating the system.

Another common problem is that there's not enough space on the map, even though it's almost empty, because there are hidden files (like app cache or backups) to see them:

1. Open the Files Explorer.
2. Put three points on it (⋮) top-right.
3. Select "Show hidden files".
4. Remove unnecessary folders (such as.thumbnails or.cache).

⚠️ Note: If you use a card as internal memory, do not turn it off in the storage settings without first transferring the data.

Frequently Asked Questions (FAQ)