Xiaomi smartphone owners often face the need to expand their built-in storage, especially when working with high-resolution multimedia. Once the drive is physically installed, the system may not immediately recognize it or require manual permission to read and write files. This is a standard Android security procedure that protects user data from unauthorized access applications.
In this article, we will analyze all the nuances of working with external drives in the shell of MIUI and HyperOS. You will learn how to format the media correctly, change access rights and what to do if the phone stopped seeing the memory card.
Sometimes the problem isn’t software settings, but compatibility of the card itself or corruption of the file system. The exFAT file system is supported by most modern Xiaomi models, while older devices may require FAT32.
Primary configuration and formatting of the drive
Once you have inserted a memory card into the slot, the operating system should give a notification. If this does not happen, you must go to the settings manually. Go to the Settings menu → About phone → Storage or search by settings by typing the request "Memory".
The system will offer two uses: as a portable storage device or as part of internal memory, the first allows you to use the card on other devices without losing data, the second encrypts the drive, making it available only for this smartphone.
- 📱 Portable storage: Ideal for storing photos, videos and music you plan to transfer to other gadgets.
- 🔒 Internal Memory: Allows applications to be installed on a map, but requires formatting, which will destroy all data on it.
- ⚙️ Formatting: A must-do step to create the right file structure, understandable to Android.
⚠️ Note: The formatting process completely removes all files from the memory card. be sure to back up important data on your computer before starting the procedure.
The type of formatting you choose depends on your goals. If you plan to store only media files, choose a portable mode, which will give you the flexibility and ability to quickly extract the map to view content on your PC without additional drivers.
Managing Access Rights through a Conductor
In some cases, especially when trying to download files from the browser or messengers to SD-This is due to security restrictions imposed on newer versions of Android (starting with version 11).
When an application requests access, a system window pops up on the screen asking you to allow access to the storage, and you have to click OK or Allow, and then the file manager interface opens, and here you need to select the root folder of the memory card, which is usually denoted as SD Card or has the name of the drive brand.
After selecting the folder at the bottom of the screen, a button will appear "Use this folder" (or "Use this folder"). By clicking it, you give the application full access to the specified directory. In some cases, additional confirmation will be required through the "Allow in the pop-up dialog" button.
- 📂 Root Directory: Choose the topmost folder so that the application has access to all subfolders.
- ✅ Confirmation: Do not ignore repeated system requests, otherwise the application will not be able to save the file.
- 🔄 Reissue: rights may be reset after an application or system update, the procedure will have to be repeated.
The standard MIUI Explorer makes it easy to manage these permissions. If you use a third-party file manager like Total Commander or FX File Explorer, the process may look a little different, but the point remains the same - giving access to a particular path.
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If the system constantly requests access to the same folder for different actions, try to find the Memory option in the application settings and force you to change the default save path.
Configuring access through a computer (USB-regime)
For mass downloads, it's often more convenient to use a computer to give you access to the files. SD-card via PC, you need to properly configure the connection mode USB. By default, the smartphone can only charge, hiding the file system from external devices.
Connect your phone to your computer using a good cable. The charging mode notification will appear on your smartphone screen. Click on it and select File Transfer Mode (MTP). Only in this mode will the computer see the internal memory and SD-map.
Way to Menu: Settings → About Phone → MIUI Version (7 times) → Advanced Settings → Access to USB Data → Always AskIn advanced USB settings, you can set the default behavior of your device. If you often connect your phone to your PC, it makes sense to set file transfer mode to constant so you don't switch it manually every time.
| USB mode | Function | Visibility SD-map |
|---|---|---|
| Just charging. | Powering the device | No. |
| File Transfer (MTP) | Data exchange | Yeah (as a separate disc) |
| Photo transfer (PTP) | For cameras and old PCs | Partially (DCIM folder only) |
| USB-modem | Internet distribution | No. |
After the regime's selection MTP There's a new disk on my computer. SD-The card is formatted correctly, you can freely copy, delete and edit files on it. If the drive does not appear, check the Xiaomi drivers on your PC.
☑️ Checking the connection to the PC
Working with file managers and applications
Standard applications, such as Gallery or Music, are usually automatically scanned. SD-But third-party applications, like video players. VLC audio players, may require manual paths to media files.
In the settings of these applications, find the "Storage" or "Library" section, where you add a new folder and navigate to your SD-It's often the path that looks like a map. /storage/XXXX-XXXX/, where X is a unique card identifier.
If the application doesn’t see files despite the right path, it may not have a system-wide storage permission. Go to Settings → Apps → All Apps → [Your App] → Permissions and make sure the Memory or Files slider is activated.
- 🎵 Audio players: often require manual scanning after adding new tracks to the map.
- 🎬 Video editors: may not work with files on SD, If not transferred to the internal memory of the project.
- 📁 Archivers: to unpack archives immediately on the map need full access rights.
⚠️ Note: Some applications may not work properly with files on SD-If the drive reads at a slower speed than the required one, this can cause the video to freeze. 4K.
Use only verified file managers. Third-party explorers may have more flexible access settings, but sometimes conflict with the system limitations of HyperOS. In such cases, it is better to temporarily use a standard tool.
Why can’t apps see files on SD?
Solving Display and Reading Problems
When the phone stops seeing SD-It's a card or a "damaged" error that requires immediate intervention. Don't rush to format the drive if it has important data.
The first thing you need to do is check the physical contact. Remove the card, wipe the contacts with a soft dry cloth and paste back in before the characteristic click. SIM-card fits tightly to the body.
If physical contact is fine, try running error checks through your computer. MTP, find the disk SD-cards in "My computer", click right-click → Properties → Service → The system will try to correct the logical errors of the file system.
- 🛠️ Virus Checking: Malware can hide files or block access to media.
- 💾 Speed Test: Use applications like A1 SD Bench to check real speed of reading and writing.
- 🔄 Changing Region: In rare cases, changing region in phone settings helps to reset indexing errors.
If nothing works, the last measure is formatting: Choose FAT32 for cards up to 32GB or exFAT for larger cards. NTFS on Xiaomi phones is not usually supported without special drivers or root rights.
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If SD-The card is not detected on any device (phone, PC, camera), most likely, it is physically out of order and requires replacement.