How to clean USB-Xiaomi phone drive: all ways 2026

Flash drives and external drives often become a dumping ground for unnecessary files: old photos, duplicate documents or app cache.On Xiaomi smartphones (including the Redmi line, POCO and Mi) cleaning USB-The storage device may be required not only to free up space, but also to eliminate reading errors, prepare for writing firmware, or simply to maintain order. The phone doesn’t see the flash drive, issues a formatting error, or suggests inappropriate file systems.

In this article, we will discuss all the current cleaning methods. USB-Drive directly from Xiaomi phone – from standard file formatting to using hidden features MIUI We'll focus on the choice of file system (FAT32, exFAT, NTFS), Recovering data after cleaning and solving common errors like "Disk is Write-Protected" or "It's impossible to format." If you've ever encountered a flash drive that's full of unnecessary files or your phone refuses to recognize it, this guide is for you.

Preparation: What to do before cleaning USB-storage

Before you start formatting, follow a few critical steps, which neglect can lead to the loss of important data or even the drive failure.

First, check the contents of the flash drive. Connect it to the phone through the phone. OTG-cable or adapter (any certified cable is suitable for Xiaomi) USB-C/USB-A or Micro-USB/USB-A, Open the Files app (or File Manager in global firmware) and go to the section USB-Make sure that the flash drive does not contain important files, and once formatted, it will not be possible to restore them with standard means.

• 🔍 Backup: Copy all the files you need to your phone, cloud (Mi Cloud, Google Drive) or other storage device.
• 🔋 Check the phone’s charge: the formatting process can take up to 10-15 minutes, and an interruption due to battery discharge will lead to a failure.
• 🛠️ Use the original cable: cheap OTG-Adapters may not provide a stable connection, which can lead to errors.
• 📱 Update the firmware: in older versions MIUI (Below 12) there may be no formatting options in exFAT, or NTFS.

Important: If the flash drive was previously used on Windows/Mac, it can be formatted into NTFS, which Xiaomi supports for read-only file system, and you will have to reformat it to FAT32 or exFAT to work properly (write files).

Method 1: Standard formatting through the Files app

The easiest method is to use Xiaomi's built-in file manager, which supports basic operations with the company. USB-the data, including the formatting of FAT32 and exFAT (depending on version) MIUI).

Instructions:

1. Connect the flash drive to the phone through OTG-Wait for the notification. USB-drive-in.
2. Open the Files app (the folder icon on the desktop).
3. At the top of the screen, select a tab USB-storage device (or device) → USB).
4. Click on the three dots in the upper right corner and select Settings → Format.
5. Select File System: FAT32 is compatible with all devices, but file size limit (4GB). exFAT is not a file size limit, but some older devices (like TVs) may not support it.

Format

The process will take anywhere from 30 seconds to a few minutes depending on the size of the flash drive, and when completed, the phone will issue a notification Formatting completed.

⚠️ Note: If exFAT is not listed in the file system list, update the firmware MIUI Up to version 12.5 or later, older versions only support FAT32.

Method 2: Formatting through “Settings” (for power users)

MIUI has a hidden partition for external drives that allows you to format flash drives with additional options, which is useful if standard file formatting doesn’t work.

How to find hidden settings:

1. Connect. USB-phone-storage.
2. Open the Settings → Memory.
3. Scroll down to the section. USB-drive-in.
4. Choose Format (or Clean in some firmware).
5. Confirm the action by following the instructions on the screen.

Instructions for USB OTG Helper:

1. Install the application and give access to the memory.
2. Connect the flash drive through the OTG.
3. In the main menu, select your drive.
4. Press Format and select the file system.
5. Confirm the action and wait for the completion.

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If the app can't see the flash drive, try turning it off, restarting the phone, and reconnecting it. OTG-cable.

⚠️ Attention: Apps like AOMEI Partition Assistant may require root access, which will void the warranty on Xiaomi. Use them only if other methods have not worked.

How to Recover Data After Accidental Cleanup

If you formatted your flash drive by mistake, don't panic, there's still a chance of recovering your data, and the rule of thumb is, don't write new files to the drive, or the old data will be overwritten.

The following tools will be suitable for recovery:

• 🔄 DiskDigger – works without root rights, but restores only photos and videos.
• 🔄 Recuva (via PC) is a more powerful tool, but requires connecting a flash drive to a computer.
• 🔄 EaseUS MobiSaver – specializes in data recovery from Android devices.

Instructions for DiskDigger:

1. Install the app from Google Play.
2. Connect the flash drive through the OTG.
3. Choose Basic Scan (without root) or Full Scan (with root).
4. Wait for the scan to be completed and mark the files for recovery.
5. Save them to your phone or cloud.

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The chances of recovery depend on the type of formatting: with a quick (quick format) data is recoverable, with a full (full format) – almost no.

Solving Common Formatting Errors

Even when following the instructions, Xiaomi users often encounter errors, and let’s look at the most common ones and how to fix them.

If the flash drive is defined but not formatted, try the following method:

1. Connect it to Xiaomi via OTG.
2. Open the Terminal (install it from Google Play if it doesn’t exist).
3. Enter the command: su mkfs.vfat /dev/block/sda1 (replace sda1 with the current section, you can find it through ls /dev/block).

How to protect your flash drive from future problems

To avoid repeated crashes and data loss, follow these tips:

• 🔒 Safe Removal: Always use the option to Remove in the notification menu before physically disabling the flash drive.
• 🛡️ Check for viruses: connect the flash drive to a PC with an antivirus every 1-2 months (especially if it is used on other devices).
• 🔄 Clean regularly: don’t wait until the drive is filled with “garbage” – format it every six months.
• 📦 Use covers: physical damage (dust, moisture, impacts) – a common cause of failures.

For advanced users: If you often work with flash drives on Xiaomi, install an OTG application manager (for example, OTG Disk Explorer).

• Mount NTFS partitions in read/write mode (root required).
• Create encrypted containers on a flash drive.
• Automatically back up data when connected.

FAQ: Frequent questions about cleaning USB-Xiaomi drive