How to turn on and configure a memory card on Xiaomi smartphones: detailed instructions

A microSD card is an easy way to expand Xiaomi’s smartphone memory, but many users face a problem: the device doesn’t see it after installation, and the reasons range from incorrect installation to formatting errors. In this article, we will analyze how to turn on a memory card on Xiaomi through system settings, what options to choose when formatting, and what to do if the smartphone stubbornly ignores SD-map.

The MIUI feature is that it doesn't always automatically recognize a new card. Sometimes manual activation is required through the Settings → Memory menu. We'll look at step-by-step steps for different firmware versions (including MIUI 14 and MIUI 15), and we'll also look at common bugs that may cause the card to be undetected. If you just bought a Redmi Note 12, POCO X5 or another Xiaomi device, this will help avoid common problems.

Why Xiaomi doesn’t see a memory card: the main reasons

Before you get into the setup, it’s important to understand why a smartphone might not recognize a microSD.

• 🔌 Incorrect installation: the card is not inserted to the end or turned (contacts should be directed upwards).
• 📱 Incompatible format: Xiaomi works with FAT32 and exFAT, but does not support NTFS.
• 🔄 No formatting: New card may require initialization via smartphone.
• 🛠️ File system damage: If the card was previously used in a camera or other device, the structure of the card may have been damaged.
• 📴 Limitations MIUI: Some models (such as the Xiaomi 13 Pro) do not support cards larger than 1TB.

If the card worked before but Suddenly stopped being identified, check it on another device (for example, on a PC through a card reader). If it doesn't read there, the problem is in the card itself, not in the smartphone. Otherwise, move on to the setup.

⚠️ Warning: Do not remove the memory card during data transfer or formatting, this can lead to the loss of all files and damage to the file system, which will then have to be repaired via the PC.

How to properly insert a memory card in Xiaomi

It would seem that it could be easier than inserting a microSD? However, even here there are nuances. Depending on the model Xiaomi slot for the card may be:

• 📱 In the tray with SIM-Card (hybrid slot) – typical for Redmi Note 11/12, POCO X4.
• 💾 In a separate slot - found in flagships (Xiaomi 13 Ultra) or old models (Redmi) 9A).

Installation instructions:

1. Turn off your smartphone (recommended, but not necessarily for most models).
2. Take a paper clip or a special key from the kit, insert the tray into the hole and gently pull it out.
3. Put the microSD pins up into the appropriate slot. If the slot is hybrid, select the priority: either the second SIM or the memory card.
4. Put the tray back in before the click.

After you turn on your smartphone, wait 10 to 20 seconds — the system must automatically identify the new device. If that doesn't happen, move to manual settings.

Activation of the memory card through the MIUI settings

If Xiaomi doesn't give a notification of a new card, you need to activate it manually.

1. Open the settings (cog icon on the desktop).
2. Go to Memory (or Storage in newer versions of MIUI).
3. At the bottom of the screen, look for the SD Memory Map (or External Storage).
4. Click on it – the system will suggest formatting the card or using it as a portable storage.

Important: If you choose Internal Memory, the card will become part of the system and cannot be retrieved without resetting the settings. For most users, Portable Storage is the optimal option, so files will be available on any device.

Once you select the mode, the system can suggest formatting the map, and if it has important data on it, pre-copy it on a PC, and formatting will delete all the content.

Formatting a memory card: which format to choose

If the card was previously used on another device (e.g. a camera), its file system may not be compatible with Xiaomi, which would require formatting, and the system will offer two options:

• 📁 FAT32 — Compatible with all devices, but limited to files up to 4GB.
• 📁 exFAT – supports files over 4 GB, is optimal for video in the video 4K.

How to format the map:

1. In the memory settings, select SD Card → Format.
2. Specify the file system (exFAT is recommended for modern smartphones).
3. Confirm the action - the process will take 1-2 minutes.

If the card is not formatted via smartphone, try doing it on PC:

1. Connect the card through the card reader.
2. Open this computer (Windows) or Disk Utility (macOS).
3. Select a map, right-click → Format.
4. Select exFAT and press Start.

⚠️ Warning: If the card is protected from recording, remove the lock with a physical switch on its case (if any), and check if it is occupied by hidden files (for example, from the camera).

Transferring data to a memory card

Once you activate the card, you can transfer photos, videos and other files to it, and you can do this in two ways:

Method 1: Through the MIUI file manager

1. Open the Files app (Folder icon).
2. Select a category (such as Images or Videos).
3. Press and hold the files you want to transfer.
4. Slip on three points in the upper right corner → Move.
5. Select the SD Card and the destination folder.

Method 2: Automatic transfer of photos and videos

To save the new photos on the map:

1. Open the camera.
2. Put it on the gear.
3. Find the location of the conservation.
4. Select Memory Card.

All images will now be saved to SD, freeing up internal memory.

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If the card is slow to record 4K video, try formatting it in exFAT or buy a UHS-I (U3) card – it’s optimized for high speeds.

What to do if Xiaomi does not see the memory card

If after all the manipulations the card is still not determined, try the following steps:

• 🔄 Reboot your smartphone – sometimes a banal rebut helps.
• 🛠️ Check the card on another device (for example, on a PC or other phone).
• 📱 Update. MIUI — In older versions of firmware can be bugs with recognition SD.
• 🔧 Reset the storage settings (in Settings) → Memory. → Three points. → Reset).
• 💾 Try another card - the problem may be the microSD itself.

If the card is determined on a PC, but not on Xiaomi, the reason could be:

• Incompatible format (e.g. NTFS)
• Damaged sectors (check through chkdsk in Windows)
• Manufacturer restrictions (some Xiaomi models do not support cards larger than 512 GB).

To diagnose, connect your smartphone to your PC via USB and check if you can see the card in File Transfer mode. If so, there's a problem with your MIUI settings. If not, the card is faulty.

Features of working with memory cards on different models Xiaomi

Not all Xiaomi smartphones work the same with microSD. Here are the key nuances for popular lines:

If you have a flagship model without a microSD slot (like the Xiaomi 13 Pro), the only way to expand memory is to use the same microSD slot. USB-adapter OTG Cloud services (Mi Cloud, Google Drive).

For budget models (Redmi A2, POCO C55) slot for the card is often combined with SIM, so you have to choose between a second SIM and additional memory.

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Before buying a memory card, check the specifications of your Xiaomi model – some devices do not support cards larger than 256 GB, despite the stated maximum of 1 TB.

FAQ: Frequent questions about memory cards on Xiaomi