Cleanup USB-Xiaomi devices: from formatting to file recovery

USB-drives on Xiaomi devices – whether it’s a smartphone, tablet or Mi TV Boxes are often a black box for users, extending memory and allowing files to be transferred between gadgets, and regularly requiring cleaning due to accumulated debris, viruses or file system errors. But how to format the flash drive correctly so as not to lose important data and not damage the device itself?

In this article, we will discuss 5 proven methods of cleaning. USB-Xiaomi drives, from standard formatting through the TV menu to recovering deleted files using a PC. FAT32, exFAT and NTFS, Because the wrong file system selection can lead to compatibility issues, you will also learn how to avoid common errors (e.g., file system compatibility issues, «USB-device is not recognized) and what to do if the flash drive ceases to be determined after cleaning.

Important: The instructions are valid for all Xiaomi Android devices (including Redmi Note, POCO, Mi 11/12/13) and Mi TV/Mi Box with MIUI 12-14 firmware and Android TV 9-12. If your device runs on HyperOS, some menu items may differ slightly - we will warn you about this separately.

1. Cleaning Preparation: What to Do Before Formatting

Before you click Format, follow 3 mandatory steps to avoid data loss or damage to the drive:

• 📁 Backup. Even if the flash drive is empty, copy its contents to your PC or to the cloud (Mi Cloud, Google Drive). Some files (such as hidden system files) may not appear in the Explorer, but will be deleted when formatted.
• 🔍 Check the drive for errors. Connect the flash drive to the computer and start the command chkdsk X: /f (X is the letter of the disk, which will help identify the bad sectors that may cause a failure during cleaning.
• 🔌 Use the original cable/adapter. Cheap. USB-Hubs or damaged wires often cause errors like, "Device is unrecognizable." TV Box is better to connect the flash drive directly to the port USB 2.0 (usually marked in blue).

If you are cleaning the flash drive for use in Xiaomi TV, note: most models (such as Mi TV 4S or Mi TV Q2) only support FAT32 for media playback. exFAT or NTFS may not be readable or work with restrictions.

2. Method 1: Formatting via Xiaomi TV or Mi Box menu

The easiest method is to use the built-in Android TV tools. It is suitable for cleaning flash drives up to 32 GB (FAT32 restriction) and does not require a connection to a PC.

Instructions for Mi TV or Mi Box S:

1. Connect. USB-drive to the port on the back of the TV or to the side port of the Mi Box.
2. Open Settings → Device → Storage (on some models, the path may be Settings → General → Storage).
3. In the “External Storage” section, select your flash drive (it will show as USB-drive-storage).
4. Click Format and confirm the action. The system will prompt you to select a file system — select FAT32 for maximum compatibility.

⚠️ Note: Some of the Mi's firmware TV (For example, PatchWall for the Indian market, there may be no formatting option. In this case, use method 3 (via PC).

If the flash drive is not determined after formatting, try:

• 🔄 Restart the TV (Settings) → The device → Reboot).
• 🔌 Connect the drive to another USB-port TV 5 Pro port USB 3.0 may not work with some flash drives).
• 🛠️ Update the TV firmware to the latest version (in Settings) → On TV. → Updating the system).

3. Method 2: Cleaning through a Xiaomi smartphone (for flash drives up to 128 GB)

If you don’t have access to a PC or TV, you can format it. USB-It's a drive directly from a Xiaomi smartphone. OTG-adapter (or cable) USB-C to USB-A) and file manager with support for external devices (for example, built-in Mi File Explorer or Solid Explorer).

Step-by-step:

1. Connect the flash drive to the smartphone through OTG-Adapter. The notifications will show a message «USB-plug-in».
2. Open Mi File Explorer and go to the section «USB-storage" (or "external device»).
3. Click on the three dots in the top right corner and select “Storage settings” → “Format”.
4. Select the file system: FAT32 for flash drives up to 32 GB (compatible with all Xiaomi devices). exFAT for drives 64-128 GB (supported on MIUI 12+, but may not be readable on older Mi TVs).

Confirm the formatting and wait until it is completed (it can take up to 5 minutes for large-volume flash drives).

On HyperOS smartphones (such as Xiaomi 14 or Redmi K70), the path to formatting may be different: open Settings → Memory → External Device → Format.

⚠️ Note: If the flash drive doesn’t appear in Mi File Explorer after formatting, check: Does your smartphone support OTG (list of compatible models: official Xiaomi website. whether there is enough power for the drive (some flash drives require additional power - use active OTG-hub).

4. Method 3: Formatting via PC (Windows/macOS/Linux)

This is the most reliable method, especially if the flash drive:

• 🚫 Not defined in Xiaomi, but visible on a computer.
• 🔄 Requires a file system NTFS (For example, to store files more than 4 GB).
• 🛠️ Has errors that cannot be fixed through a TV or smartphone.

Instructions for Windows 10/11:

1. Connect the flash drive to your PC. If it doesn't recognize it, try another port or check the Device Manager (Win + X → Device Manager → Disk Devices).
2. Open “This Computer,” find your drive (e.g., “Removable Disk (E:)”), and right-click → “Format.”
3. Select the settings: File system: FAT32 (for compatibility with Mi TV) or exFAT (for flash drives) >32 Cluster size: leave "Default" Volume tag: type a title (e.g., "Top of the box, XIAOMI_MEDIA).

Start.

For macOS, use the Disk Utility (Programs → Utilities → Disk Utility) and for Linux, use the command:

sudo mkfs.vfat -n 'XIAOMI_DRIVE' /dev/sdX1

sdX1

lsblk

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If you need to format a flash drive in NTFS to store large files (such as disk images), but use it on Xiaomi TV, split the drive into two sections: one in FAT32 (for TV), the second in NTFS (for PC).

5. Method 4: Low-level cleaning (for damaged drives)

If standard formatting does not help and flash drive:

• 🚨 Defined as «RAW» or “Unknown file system».
• 🐢 Very slow (record speed) <5 MB/s).
• 🔴 Error: "Disk is protected from recording».

Low-level formatting with complete data erasure is required.

For this, use the utilities:

• 🖥️ HDD Low Level Format Tool (Windows) – erases all sectors, restoring factory condition.
• 🐧 GParted (Linux) – allows you to reshape the partition table.
• 🍎 Disk Utility (macOS) in “Erase” mode with schema selection GUID.

Warning: Low-level formatting destroys data without recovery and reduces the life of the flash drive (especially for cheap models with a high-end memory). MLC-Use it only as a last resort!

Method 5: Data recovery after cleaning

If you formatted a flash drive by mistake or lost important files, you can try to restore them using specialized programs.

The best utilities for recovery:

• 🔍 Recuva (Windows) – Free, Simple, Supports FAT32/exFAT.
• 🖥️ TestDisk (Cross-Platform) – Recovers even lost partitions.
• 🍎 Disk Drill (macOS) – Previewing the files found.

Instructions for Recuva:

1. Connect the flash drive to the PC and start Recuva.
2. Select the file type (e.g., “Images” or “All Files”).
3. Please indicate your location - yours USB-accumulator.
4. Click "Analysis" and wait for the scan to be completed.
5. Tick the files and click "Restore." Don't save them to the same flash drive!

⚠️ Note: Do not use programs like “EaseUS Data Recovery” or “Stellar” to recover files from flash drives formatted with Xiaomi TV. They often misrecognize the structure. MIUI-For media files (photos, videos) PhotoRec is better suited (included in the TestDisk package).

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If the flash drive was used for Xiaomi firmware (for example, to update the Mi TV via USB), data recovery from it is almost impossible - firmware is often written in a special format with checksums.

7.Typical errors and their solutions

Even after proper cleaning USB-The drive may not work properly. Let's look at the 5 most common problems and how to fix them:

If none of these methods worked, the hardware of the flash drive (memory chip wear, controller damage) is likely to be a problem, in which case it will cost more to recover the data than to buy a new drive (the cost of the laboratory starts from 5 000 USD). ₽).

8. Frequently Asked Questions (FAQ)