MicroSD cards in Xiaomi smartphones often become black boxes: files disappear, photos donโt appear in the gallery, and music suddenly disappears from the player. The reason is not always a failure โ sometimes the Android settings, features of the FAT32/exFAT file system or hidden system folders are to blame. This article will help you understand where data is stored on the Xiaomi memory card, how to find it (including hidden files), and what to do if the card suddenly ceased to be determined.
We'll look at not only standard paths like DCIM or Download, but also little-known directories that create applications (like Android/data for game cache), and we'll look at cases where a memory card is identified as corrupt but the files on it can still be saved. All instructions are relevant for MIUI 12-14 and Android 10-14 devices.
1. Standard folders on Xiaomi memory card: where is what lies
By default, the file system on the microSD in Xiaomi smartphones is organized according to the standard Android rules, but with the nuances of MIUI.
- ๐ DCIM โ Photos and video from the camera (including screenshots if the save is configured on a map) The Camera subfolder contains media files sorted by date.
- ๐ต Music - audio files that are recognized by the standard Mi Music player. If the music is not displayed, check the extensions: only supported.mp3,.flac,.wav.
- ๐ Download: files downloaded through a browser or download manager. This can include.apk,.pdf documents, and.zip archives.
- ๐ฎ Android/data โ cache and save games/applications (e.g. com.tencent.ig for PUBG Deleting this folder will cause game progress to reset!
If you connect the card to your PC via a card reader, you will see two more hidden system folders:
- ๐.android_secure โ encrypted application data (for example, WhatsApp files when transferred to the SD).
- ๐ LOST.DIR โ Recovered fragments of files after a failure can be safely deleted if the card is stable.
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If the folder DCIM empty, but you're sure the photos were, check the camera settings: it's possible the save is set to internal memory. โ Warehouse โ Memory map
2. How to find hidden files and folders on a microSD
By default, MIUI hides system directories and files with a dot at the beginning of the name (such as.nomedia) to see them:
- Using the standard file manager Mi File Explorer: Open the Files app (yellow folder icon). Tap three dots in the upper right corner โ Settings. Activate the option to Show hidden files.
- Through PC (Windows/macOS): Connect the card through the card reader. In Windows Explorer, go to the View โ tick Hidden Items. On macOS in Finder, click Cmd + Shift +. (dot).
Pay special attention to.nomedia files, which block the scanning of folders by media players. For example, if there is such a file in the WhatsApp/Media folder, photos from the chats will not appear in the gallery. Solution: delete.nomedia or rename it.
Why is the memory card empty when space is taken?
3. Search for files via the command line (for experienced)
If the memory card is identified but the files are not displayed in any manager, you can try to find them through ADB (Android Debug Bridge), which requires the developer mode to be enabled:
- Activate USB Debugging in Settings โ About Phone โ MIUI version (tap 7 times according to version, then return to Additional โ For developers).
- Connect your phone to your PC and execute in cmd (or terminal on the PC) macOS/Linux): adb shell ls /storage/XXXX-XXXX/ Instead XXXX-XXXX set up the real thing ID maps (you can find it by the LS command) /storage).
- To find a specific file, use: find /storage/XXXX-XXXX -name "*.jpg" (replace *.jpg with the desired extension).
If ADB issues a Permission denied error, try rooting (but that voids the warranty!) and use applications like FX File Explorer with Root Access.
Through the card reader.|Through a smartphone in file transfer mode|Use it. OTG-cable|Not plugged in.-->
4. Recover deleted files from memory card
If files were accidentally deleted, they can be recovered using specialized utilities, and it is important that you do not write new data to a map before recovery, which reduces the chances of success.
| Utility. | Support for the file system | Free version | Features |
|---|---|---|---|
| Recuva | FAT32, exFAT, NTFS | Yes (with limitations) | Simple interface, supports photo/video recovery |
| PhotoRec | Any (works at a low level) | Yes. | It does not save file names but restores maximum data |
| DiskDigger | FAT32, exFAT | Partially. | There is an Android version (requires root for deep scanning) |
| EaseUS Data Recovery | All popular. | No (30-day trial) | Restores folder structure, file preview |
Instructions for Recuva (the most versatile option):
- Connect the card to the PC through the card reader.
- In Recuva, select the file type (e.g. Pictures for photos).
- Specify the location - the letter of the disk of the memory card.
- Start a deep scan (Enable Deep Scan).
- Once completed, mark the files you want and press Recover by saving them to another drive (not a map!).
๐ Stop using the memory card|๐ป Connect the card through the card reader (not OTG!)|๐ Select a utility with exFAT support|๐พ Save the recovered files to another media-->
โ ๏ธ Note: If the memory card was formatted in exFAT, and the utility supports only FAT32, Check the file system of the card in Properties (PCM on disk) โ Properties โ File system).
5. Memory card not determined: diagnostics and repairs
If Xiaomi smartphone does not see the memory card or gives an error "SD-The card is damaged, follow the algorithm:
- ๐ Check physical connection: Remove the card and inspect the contacts for oxidation or contamination (wipe with alcohol). Try inserting the card into another slot (e.g. another phone or card reader).
- ๐ฅ๏ธ Check on PC: If the card is not detected even on a computer, try another one USB-port or card reader. In Disk Management (Windows) check if the card is displayed as RAW โ This is a sign of file system damage.
- ๐ ๏ธ Software Recovery: Use it SD Card Formatter (official utility from the SD Association) for low-level formatting. If formatting doesn't work, the map can be physically damaged, in which case only a replacement will help.
For SanDisk and Samsung cards, there are proprietary recovery utilities:
SanDisk RescuePRO (free for SanDisk cards)
Samsung Data Migration (for SSDs, but sometimes with microSD)
You can download them on the official websites of manufacturers.
โ ๏ธ Note: If the memory card has been encrypted through Settings โ Lockdown and protection โ Encryption SD-card, it is impossible to restore data without a password. MIUI use AES-256, And even specialized services will not be able to decrypt files without a key.
6.Memory card optimization for Xiaomi: formatting and settings
To avoid memory card problems in the future, follow these guidelines:
- ๐ Formatting: Use exFAT for maps with volume >64 GB (supports files) >4 For maps. <32 GB fits. FAT32. Don't use it. NTFS โ MIUI Does not support this file system for removable media.
- โ๏ธ Saving Settings: In the camera: Settings โ Warehouse โ Memory card. WhatsApp: Settings โ Warehouse โ Keep the media on SD-In the bootloader: Settings โ Warehouse โ Default location.
- ๐ Regular maintenance: Copy important data every 2-3 months on your PC and format the map. Avoid extracting the card while recording (for example, when shooting video). 4K).
For formatting in exFAT on a smartphone:
- Go to Settings โ Storage โ Memory Map.
- Tap on three points โ Storage settings โ Format as internal (only for Android 6+).
- Select exFAT and confirm the action.
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Formatting the card as internal memory speeds up applications, but makes it tied to a particular smartphone, and once extracted, the data will not be available on other devices!
7. Frequent errors and their solutions
Letโs discuss the typical memory card problems in Xiaomi and how to fix them:
| Mistake. | Reason. | Decision |
|---|---|---|
| "SD-The card is empty or the file system is not supported" | Damage to partition table, incorrect file system | Format the map in exFAT via PC |
| "Memory card incorrectly retrieved" | Interrupting data recording (for example, when shooting a video) | Connect the card to your PC and run chkdsk /f |
| Photos in the gallery are not displayed | .nomedia file in folder or damaged thumbnails | Remove.nomedia or clear gallery cache |
| The map is defined as RAW. | Critical damage to the file system | Use TestDisk to restore partitions |
If the memory card is physically damaged (for example, after a fall in water or a strong bend), data recovery is possible only in the laboratory. The cost of such services starts from 5,000 rubles, and success is not guaranteed, in this case it is easier to buy a new card (we recommend SanDisk Extreme or Samsung EVO Plus for Xiaomi).