How to connect a memory card to a Xiaomi phone: a complete guide with a photo

Xiaomi smartphones support memory expansion via microSD cards, but the process of connecting them often raises questions among users. Unlike Samsung or Apple flagship models, where memory card slots are rare, most Redmi, POCO and even some Mi devices allow you to increase storage capacity to 1 TB - provided you choose the drive and set up the system.

In this article, we’ll not only break down the basic microSD installation procedure, but also the nuances that the official instructions keep silent about, such as why a 128GB card can display as 119GB, how to avoid the memory card is corrupted error, and what to do if the phone doesn’t see the new drive. You’ll also learn which Xiaomi models support formatting the card as internal storage, a feature that allows you to install apps directly to the SD.

1. Which memory cards are compatible with Xiaomi

Not all microSDs are equally useful. Xiaomi smartphones work with SDHC (up to 32 GB) and SDXC (64 GB to 2 TB) cards, but there are critical limitations:

• 🔹 Speed class: Minimum Class 10 (or UHS-I U1) video-recording HD. For 4K need U3 or V30.
• 🔹 File system: Maps up to 32 GB are formatted in FAT32, Some older Xiaomi models (e.g. Redmi) 4X) They don't support exFAT.
• 🔹 Manufacturer: Recommended by SanDisk Ultra, Samsung EVO It's called Kingston Canvas, and cheap no-name cards are often forged to indicate that they're too big.

Important: Xiaomi models with hybrid-slat support (for example, Redmi Note) 10 Pros require a choice between the second SIM-Check the specifications of your model on the official website mi.com - in the section "Features" usually says "Double" SIM + microSD" or "Double-Service SIM (nano-SIM + nano-SIM/microSD)".

2. Step-by-step instruction: how to insert a memory card

The process of installing a microSD is simple, but errors at this stage lead to damage to the contacts or the card itself.

1. Turn off the phone. This prevents the risk of short circuits when you insert the card.
2. Find a slot for microSD: 📍 In most models (for example, Redmi Note 12) it is located on the left side next to the volume buttons. 📍 In some flagships (for example, Xiaomi 13) – on the top edge.

needle

gold-coloured

Carefully insert the tray back before the click. Don't make any effort!

⚠️ Attention: If the tray is not fixed or the card is hanging, don't turn on the phone! This is a sign of incomplete entry, which can damage the connector. Try to remove and insert the tray again.

3. Memory card setup in MIUI system

When you turn on your phone, you'll see a notification, "New Memory Card Discovered." Click on it or go to Settings → Memory. The system will offer two uses:

To select the internal storage mode:

1. Select "Configure" → "Internal Storage".
2. Read the formatting warning (all data will be deleted!).
3. Confirm the action. It'll take 1-5 minutes.
4. After formatting, go to Settings → Applications → Transfer applications to move programs to the map.

If the card is identified but gives an error "Damaged" or "Not supported":

1. Make a backup of the data (if the card is read on a PC).
2. Format the card in FAT32 (up to 32 GB) or exFAT (above) via your phone: Settings → Memory → SD Card → Format.
3. If formatting doesn’t help, try the SD Card Formatter utility from the SD Association on PC.

⚠️ Note: Do not use maps formatted in NTFS — Xiaomi doesn't support them. Also avoid "fast formatting" on Windows - it doesn't check the bad sector.

5. Optimization of work with a memory card

To extend the life of microSD and avoid lags:

• 📁 Don't store the app cache on the map. Only transfer it yourself. APK-file.
• 📁 Turn off saving screenshots on SD: Settings → Screenshots → The way to preserve.
• 📁 Use the card only for media files (photos, videos, music) and the application databases on it are slow.

To speed up reading/write:

1. Enable caching of records in the camera settings (if you have an option).
2. Turn off autosave to the cloud (like Google Photos) for files on the map, which creates extra workload.
3. Regularly (every 2-3 months) format the card via your phone, not a PC – this resets the file system under MIUI.

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UHS-II memory cards (like the SanDisk Extreme Pro) in Xiaomi are no faster than UHS-I - the limitation is related to the slot controller.

6. How to transfer data to a memory card

MIUI offers built-in tools for file transfer, but they're not always convenient.

Method 1: Through "Conductor"

1. Open the Files app (Folder icon).
2. Select files (long press) → "Move".
3. In the list of locations, select the SD Card and the destination folder.

Method 2: Automatic saving

For the camera: Camera settings → Save to → SD card.

For downloads: Settings → Applications → Downloads → Storage → SD Card.

Method 3: Through the PC

1. Connect your phone to your computer in File Transfer (MTP) mode.
2. Copy the files to the Internal Storage folder → [Card Name].
3. Avoid dragging system folders (such as Android or MIUI) – this can disrupt applications.

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To speed up copying large files (such as movies), use a card reader instead of connecting via USB.

7 Xiaomi models with features of microSD support

Not all Xiaomi smartphones work the same with memory cards, and here are the key exceptions:

⚠️ Attention: In models with UFS 3.1 (e.g. Xiaomi) 12T) MicroSD read speed is limited by controller – even a card UHS-I U3 It will run slower than the internal memory if you need high performance (for example, for recording). 8K-Videos, use internal storage.

Frequent Questions (FAQ)