Where in Xiaomi Redmi 9C is a memory card and how to open it: 5 proven ways

Xiaomi Redmi 9C owners often face a problem: they inserted a microSD card into the slot, but can not find its contents in the phone. The system does not show folders with photos, music or documents, although the settings show that the card is connected. What is the matter? The reason may lie in the wrong storage settings, hidden folders or even hardware limitations of the model.

In this article, we will discuss all possible ways to access files on a Redmi memory card. 9C — from standard conductor to commands ADB You'll learn why the phone doesn't see. SD-map MIUI, How to transfer applications to an external drive (if it is possible at all on this model), and what to do if the card is determined to be corrupted, and a unique life hack for those who have the card displayed in the settings but do not appear in the file manager.

1. Standard method: search for a memory card through a MIUI conductor

The most obvious method is to use Xiaomi’s built-in file manager, which is simply called Files on Redmi 9C, but even here there are pitfalls: By default, the system can hide external drives or display them in an unobvious way.

To find the memory card:

• 📱 Open the Files app (if it isn’t on the home screen, search through the swipe down).
• 🔍 At the top of the screen, tap on three horizontal lines (menu) and select Device».
• 💾 Scroll down, yours should be displayed here. SD-card (usually signed as «SD-map" or "External Storage"). If it is not available, see the next section.
• 📂 Click on the name of the card and its contents will open. If the folders are empty, check if the files are hidden (more on this below).

⚠️ Attention: On Redmi 9C s MIUI 12 and above, the memory card can only be displayed after the phone has been restarted after it has been first installed. SD-You try to open the card immediately, try to take it out and re-paste it, then restart the device.

💡

If in a conductor MIUI no Device tab, update the Files app via Google Play. Older versions may not support display SD-new-fixed.

2.Why is the memory card not displayed in the file manager?

If you have completed all the steps in the first section, SD-The card never appeared, the problem may be in one of the following points:

🔧 Technical nuance: Redmi 9C Supports microSD cards up to 512 GB, but only if they are formatted in exFAT. NTFS The phone will see it, but it won’t work with it.

3. Alternative methods of access to SD-map

If the standard MIUI conductor stubbornly doesn’t show the map, try to circumvent the restrictions with third-party tools.

Method 1: Using Google Files

The Google Files app often does a better job of displaying external drives than Xiaomi’s native Explorer.

• 📲 Install Google Files from the Play Market.
• 🔍 Open the app and go to the Memory tab».
• 💾 In the “Devices” section, yours should appear. SD-If it's not there, tap three dots in the top right corner and select "Show" SD-map».

Method 2: Connecting to a PC

Sometimes it’s easier to connect your phone to your computer and work with the card through Windows/macOS Explorer.

Turn on USB debugging in Settings → About Phone → MIUI version (shap 7 times)

Select the MTP file transfer mode when connecting the cable

Use the original. USB-cable (cheap data is often not transmitted)

Turn off the screen lock on your phone while you’re working.-->

⚠️ Note: If you connect to a PC, only the phone’s internal memory is visible, and SD-no card - check if the developer settings set the option to Disable external drives when connecting USB. It needs to be turned off.

Method 3: ADB commands for power users

If you are familiar with Android Debug Bridge (ADB), you can manually check if the system recognizes the memory card:

adb shell


ls /storage

The output should be a catalog of the species XXXX-XXXX (where X is random symbols, that is yours. SD-If it's not, the problem is at the kernel or driver level.

4. Set up a memory card as an internal or external storage

On the Redmi. 9C (Like other Xiaomi smartphones, when you first connect SD-The system asks you how to use it as a portable storage device (external card) or as internal memory (extension of the main drive), and this choice determines whether you see the card in the conductor and can transfer applications to it.

🔄 How to change the type of storage:

1. Go to Settings. → Warehouse.
2. Tap your name. SD-map.
3. In the upper right corner, click on three dots and select “Storage settings”.
4. Select Portable Storage (if you want to see the card as a removable drive) or Internal Storage (if you want to port applications).
5. ⚠️ Warning: If you change the type of storage, all data from the card will be deleted.

📌 Important moment: At Redmi 9C s MIUI 12+ portability SD-The card is often blocked by the system, even if the card is configured as internal memory.

5. Search for hidden files and folders on SD-map

Sometimes the memory card is displayed on the system, but it looks empty. The reason is hidden files or folders that the default conductor does not show. On Redmi 9C, this is most often:

• 📁 Folders with a dot at the beginning of the name (for example,.thumbnails – cache thumbnails).
• 🔒 Android system files (for example, Android/data — This is where game data is stored).
• 📎 Files hidden by viruses (if the card was previously used on the infected device).

🔍 How to enable the display of hidden files:

1. Open Files → three dots in the upper right corner → Settings.
2. Activate the option “Show hidden files”.
3. Go back to the contents. SD-Maps – now should appear gray (semi-transparent) folders.

⚠️ Note: Do not delete Android folders, DCIM or MIUI — This can cause app or camera malfunctions, so if you want to free up space, move your files to your PC or cloud.

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Hidden files take up space on the map, but they don't show up in a gallery or music player. To see them, be sure to turn on the appropriate setting in the explorer.

6. Resolve memory card reading errors

If Redmi 9C make mistakes, like «SD-Map corrupted, Unknown file system, or Map not supported, try the following steps:

Mistake: «SD-The card is damaged. Try formatting it.»

🛠 Decision:

• 💻 Connect the card to your PC and check for errors via chkdsk (Windows) or Disk Utility (macOS).
• 🔄 If the check does not help, format the card in FAT32 (for cards up to 32 GB or exFAT (for cards over 64 GB).
• 🚫 Don't use it. NTFS — Redmi 9C It does not support this format for removable drives.

Mistake: «SD-card too slow»

🐢 Reason: Class 4 or lower cards may not be suitable for use as internal memory. Xiaomi requires a minimum Class 10 or UHS-I.

🔄 Solution: Buy a card with a marking U1 or U3 (For example, SanDisk Ultra A1).

Mistake: «SD-card not supported»

🤖 Reason: On some firmware MIUI There is a bug that makes the phone unable to see 256GB and 512GB cards, even if they are compatible.

🔧 Solution: Update your firmware to the latest version or roll back to an older version (if the error appears after the update).

7. Transfer data to the memory card and back

Even if you found it. SD-It's not always easy to transfer files to a map in a conductor. 9C There are a few nuances:

How to transfer photos and videos

• 📸 Open the Gallery» → Choose a photo → «Share» → «Save it on. SD-map».
• 📁 Or manually move the folder. DCIM/Camera from internal memory to map through conductor.

How to transfer applications (if allowed by the system)

⚠️ On the Redmi. 9C s MIUI 12+ portability SD-The card is often blocked, but we can try:

1. Go to Settings → Applications → Application Management.
2. Select the application → “Storage” → “Change”.
3. If you're an option «SD-map" active - move. If not - see spoiler below.

Automatic saving on SD-map

To make sure that new photos, screenshots and downloads are immediately saved to the map:

• 📷 For the camera: open the camera app» → settings (cogs) → «Preservation site» → choose SD-map.
• 🌐 For downloads from the browser: in Chrome or MIUI Browser go to the settings → «Downloads» → point the way.

FAQ: Frequent questions about memory cards on Redmi 9C