How to open a memory card in the phone Xiaomi Redmi: full instructions

Why Xiaomi Redmi doesn’t see a memory card and how to fix it

The microSD card is an indispensable accessory for Xiaomi Redmi owners, especially if the internal memory is not enough for photos, videos or applications. But what if the phone does not recognize or access the media? The problem can lie in the wrong settings of the system, and in the physical malfunction of the card or slot.

In this article, we will analyze all possible ways to open a memory card on Redmi smartphones – from basic connection verification to complex manipulations with formatting and MIUI settings. Particular attention will be paid to typical user errors, due to which the card can be determined as damaged, although in fact the problem is solved in 2 minutes.

If your Redmi Note 10/11/12, Redmi 9/10 or other model of the series stubbornly ignores microSD, do not rush to bring the phone to the service. 90% of the time the problem is software, and it can be fixed yourself.

1. Verification of physical connection of memory card

Before digging into the settings, make sure the memory card is properly installed in the slot.In Xiaomi Redmi models with a hybrid tray (such as the Redmi Note 9 Pro or Redmi). 10C) There is often confusion: users insert microSD into the slot for the second. SIM-The map, although it is not intended for this purpose.

How to check:

• 🔍 Remove the tray with a paper clip (the hole is usually on the right on the end of the phone).
• 📱 Make sure the memory card is inserted into a separate slot (if any) or slot SIM 2 (in hybrid trays).
• 🔄 Turn the map over – sometimes contacts are upside down.
• 🧹 Clean the contacts of the card and slot from dust with a soft brush or compressed air.

If you still don't recognize the card after you reinstall it, try inserting it into another phone or card reader, and if you can't see it there, the problem is in the card itself (possibly the controller is damaged).

2. Memory card setup in MIUI: formatting and mounting

If the phone sees the card but doesn't give it access, it's likely not formatted or formatted in an incompatible file system (e.g. NTFS instead of FAT32 or exFAT). MIUI has a built-in customization wizard to help prepare the media.

Instructions:

1. Go to Settings. → Memory.
2. Click on the SD Memory Card bar (if not, the card is not physically recognized).
3. Choose Setup or Format.
4. The system will offer two options: 📱 Portable storage – the card will be used as a removable drive (files can be transferred to the PC). 🔄 Internal memory – the card will become part of the system (applications can be installed on it, but on PC files will not be available without rooting).

Confirm the formatting (all data will be deleted!).

⚠️ Note: If you choose the Internal Memory option, the card cannot be removed without resetting the phone to factory settings. Also, some applications (such as WhatsApp or Telegram) may not work with internal memory on a microSD.

3. Solving problems with reading a memory card

If the card is detected but the files are not opened or the error "Memory card is damaged" appears, try the following steps:

If the card was formatted as an internal memory, but you want to retrieve it now, do the following:

1. Transfer all important data from the card to your phone or PC.
2. Go to Settings → Memory → SD Memory Map → Data Transfer and Formatting → Format as Portable.
3. Once formatted, the map can be safely retrieved.

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If the memory card often turns off on its own, try inserting it through an adapter into the memory card. USB-PC port and check for errors using the utility CHKDSK (Team: chkdsk E: /f, where E: is the letter of the disk).

4. How to transfer data to a memory card in Xiaomi Redmi

Once you've successfully connected the card, you can free up the phone's internal memory by transferring photos, videos and apps to it, and MIUI has built-in tools for that.

File transfer:

• 📷 Photo and video: Open the gallery, highlight files → More. → Move it → Memory map.
• 🎵 Music and Documents: Use a Guide (Menu) → Select → Move it).
• 📱 Applications: Not all programs support microSD portability. → Annexes → [Select the application] → Memory. → Change.

⚠️ Note: Some system applications (such as Mi Video or Mi Music) may not work properly if their data is stored on a memory card. Also, do not transfer high-speed applications (games, instant messengers) to microSD if the class card is lower. UHS-I.

To automatically save new files to the card:

1. Open the camera → Settings → Save Place → Memory Map.
2. In Downloads, click Settings → Save Place → Memory Map.

5.What to do if Xiaomi Redmi doesn't see the memory card after the MIUI update

After major MIUI updates (e.g. 12-13 or 13-14), some users find that the phone no longer recognizes the microSD, due to a change in security policy or a failure in the operation of storage drivers.

Solutions:

• 🔄 Phone reboot: Sometimes a banal reboot helps - pinch Power + Volume up for 10 seconds.
• 🛠️ Cache Clearing: Go to Settings → Annexes → Application management → Three points. → Show system-based → Memory, then clear the cache and data.
• 📥 Resetting storage settings: In Settings → Memory. → Three points. → Storage settings → Reset.
• 🔙 Update rollback: If the problem appears after the update, try rolling back to the previous version MIUI through settings → The phone. → Updating the system → Three points. → Select a Service Package.

If none of the methods worked, you'll have to reset your phone to factory settings (don't forget to back up!).

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data.
3. After rebooting, insert the card again and format it.

6 How to check the memory card errors without a computer

If you don’t have a PC or card reader on hand, you can diagnose card problems directly on your Xiaomi Redmi phone, and you’ll need built-in MIUI tools or third-party apps.

Method 1: Integrated diagnostics

1. Open Settings → Memory → SD Memory Card.
2. Press Three Points → Settings → Check for Errors.
3. Wait until the scan is completed (it can take up to 10 minutes).

Method 2: Application A1 SD Bench (for speed and error checks):

• 📊 Install the app from Google Play.
• 🔍 Run a read/write test – if the speed is below 10MB/s, the card is damaged or fake.
• 🚨 If the test is correct, the card should be replaced.

Method 3: Verification through Termux (for advanced users)

If you are familiar with ADB or Linux commands, you can use Termux to diagnose:

pkg install e2fsprogs


fsck /dev/block/mmcblk1p1

(Replace mmcblk1p1 with the current path to your map, and you can find out through the command ls /dev/block | grep mmc.)

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If a memory card is identified but the files on it are not opened, the problem is likely to be in the damaged sectors, in which case only full formatting at a low level (not fast!) via the PC will help.

7.How to avoid memory card problems in the future

To ensure that your Xiaomi Redmi microSD runs smoothly, follow these guidelines:

• 🛡️ Buy cards from proven brands: SanDisk, Samsung, Kingston. avoid "no-name" media - they are often forged.
• 🔄 Regularly format the map: Once in 3-6 Do a full formatting (not fast!) for months. FAT32 exFAT.
• 🚫 Do not remove the card while recording: Wait for copying or video capture to be completed.
• 🌡️ Avoid overheating: Do not leave your phone with a card in direct sunlight or near heat sources.
• 📵 Turn off the card before extraction: C Settings → Memory. → Memory map SD → Extract.

It is also worth watching the speed class of the card:

• 📸 Class 10 is enough for photos.
• 🎥 For the video in 4K need UHS-I (U3).
• 🎮 For games and applications — UHS-II or A2 (optimized for random recording).

If you shoot videos frequently or install heavy games, it’s best to use A2-marked cards – they’re optimized for a large number of small files.

Frequent questions about memory cards in Xiaomi Redmi