Xiaomi mobile devices have long ceased to be just a means of communication, becoming powerful multimedia centers capable of processing huge amounts of data. However, even the largest internal storage memory will eventually run out, especially if you’re actively shooting high-resolution video or storing a large library. USB-storage devices connected via the charging port.
Working with external disks requires periodic maintenance, as the file system can be clogged with temporary data or damaged as a result of incorrect extraction. Users often have to completely erase information to make room or correct reading errors. USB-The device on the Redmi smartphone and POCO has its own features that differ from working with ordinary flash drives on a computer.
In this article, we will take a look at all the formatting methods available, from standard MIUI tools to advanced computer tools. You will learn how to properly prepare your device, which file systems are supported, and how to avoid losing important data during maintenance. A competent approach to memory management will allow your gadget to work faster and more stable.
Preparation for cleaning of external storage
Before you start taking drastic action to delete data, you need to make sure your smartphone is physically ready to work with external devices. Most modern Xiaomi models are equipped with a USB Type-C or Micro-USB port with support for OTG (On-The-Go) technology, which allows you to connect the peripherals without additional drivers. However, a special adapter may be required to successfully connect a flash drive or an external hard drive if the connectors do not match.
The critical step is backup. (formatting) will completely destroy all the information on the media, so be sure to check for the right files. If there are important documents, photos or videos on the flash drive, copy them to your computer or to the cloud, ignoring this step will lead to irretrievable data loss, which is extremely difficult and sometimes impossible to recover by software methods.
⚠️ Warning: Make sure that the battery charge of the smartphone is at least 30-40%. Suddenly disabling the device while working with the file system can lead to logical errors and damage to system partitions.
It is also worth checking the state of the USB-Dust or pile can prevent close contact, causing errors in data transmission or formatting. Carefully inspect the port and clean it with a dry soft brush or compressed air if necessary. A stable connection is key to successfully completing the cleaning procedure.
💡
Use high-quality adapters with shielding, as cheap analogues can cause interference and reduce the speed of data transfer, which is especially noticeable when working with large files.
Connection USB-device OTG
The process of connecting an external drive in the shell MIUI Once the flash drive is physically connected to the phone through the appropriate adapter, the system must automatically identify the new device. USB-If you don't have a notification, check the status bar at the top of the screen, and there should be a flash drive icon.
In some cases, especially when using external hard drives with high power consumption, the smartphone may not have enough power to unwind the drive engine, in which case the system may suggest turning off the device or simply not reacting to it. For such cases, there are active USB-powered hubs that solve the problem of energy shortage.
- 🔌 Connect the adapter. OTG port-to-port.
- 💾 Put it in. USB-flash drive or external disk cable into adapter.
- 🔔 Wait for the sound signal or vibration to confirm the connection.
- 📂 Open the notification or go to the “Conductor” app».
Once you've successfully connected, open the standard File Manager app, in the list of available storage facilities, along with internal memory and storage. SD-(if installed) a new section must appear, usually designated as USB Or the name of the flash drive manufacturer, and if you click on it, you can access the file structure of the external drive and you can manage the files.
Formatting through the smartphone settings menu
The safest and most recommended way to clean USB-Xiaomi drive — using built-in system tools. This method ensures that the file system is properly configured and there are no compatibility errors. First, go to the main device settings menu, scroll down to the About Phone or Memory section, although in the newer versions. MIUI Storage management is often placed in a separate location or available through search.
Find the storage partition. Depending on the firmware version, it can be called Memory, Storage, or Device and Memory. From the list of available storage devices, select your connected drive. USB-The system will display information about the occupied and vacant place, and also offer several options for action.
In the drive control menu that opens, you need to find the "Clean" or "Format" button, and the system will warn you that all data will be deleted, confirm the action, and the process will start. It usually takes from a few seconds to a couple of minutes, depending on the storage volume and the speed of writing.
☑️ Formatting algorithm
Once the procedure is complete, the system will notify you of the successful formatting, and now the drive is fully ready to write new data and has a clean file system optimized for Android.
Using the “Conductor” application for cleaning
An alternative, but equally effective, way to clean up is to use the standard Explorer app, which is pre-installed on all Xiaomi smartphones, which is convenient because it allows you to visually evaluate the content before removal and select specific files for manual cleaning, if full formatting is not required.
Open the app and go to the USB tab, which shows the entire file structure of the connected device. If your goal is to remove only junk, you can highlight unnecessary folders and files, click Delete and confirm action. However, for complete cleaning and error-solving, you better use the formatting function.
To start formatting through Explorer, click on the three dots in the upper right corner of the screen (action menu). In the drop-down list, select Settings or Format. The system will again request confirmation of the operation, as this action is irreversible. After confirmation, the process of marking up the disk will begin.
⚠️ Attention: Don't pull out USB-This can damage the USB drive controller and lose the ability to use it further.
The advantage of using built-in Explorer is that you can create the necessary folder structure for sorting files immediately after formatting, which helps to maintain order on the external media and quickly find the necessary information in the future.
File system selection: FAT32, exFAT or NTFS
When formatting an external drive on Xiaomi devices, the system automatically selects the most suitable file system, but it is useful for the user to understand the difference between the two. The choice of format affects compatibility with other devices and the maximum file size that can be written to the USB drive.
The most universal standard is FAT32, which is supported by almost any device, from old radios in cars to game consoles. However, FAT32 has a significant limitation: the size of a single file can not exceed 4 GB. For documents and photos, this is not critical, but for high-quality movies or game images, it is significant.
The more modern standard is exFAT. This file system is devoid of the 4GB limit and works great with large amounts of data, while remaining compatible with most modern smartphones and computers running Windows and macOS. It is this format that is most often recommended for external drives larger than 32GB.
NTFS is native to Windows and supports huge files, but on Android devices it often requires root rights or special drivers to write data. Without additional setup, the smartphone can only read data from NTFS, but not write new ones.
| File system | Max. File size. | Compatibility | Recommendation |
|---|---|---|---|
| FAT32 | 4GB | Maximum | For music, documents, cars |
| exFAT | > 4 GB | High (Android/PC) | For 4K video, games, large archives |
| NTFS | > 4 GB | Low (read only) | Just for PCs, not for phones. |
| EXT4 | Depends on the OS. | Android only (Root) | For advanced users |
💡
For most Xiaomi users, the best choice is the exFAT format, as it removes the limitations on the file size and provides high speed.
Cleaning through the computer: when the phone does not see the flash drive
There are situations when Xiaomi smartphone can not format the drive due to logical errors or incompatibility of the current markup. In this case, a personal computer comes to the rescue. USB-port.
In Windows, find your drive in My Computer. Right-click on it and select Format. In the window that opens, it is important to choose the right options: file system (exFAT is recommended), cluster size (leave it by default), and be sure to uncheck Quick Formatting if you want to do a deep cleaning of sectors.
Parameters for deep cleaning:
File system: exFAT
Cluster size: Standard
Mark of the volume: USB_Xiaomi
Quick formatting: [Take the Tick]Once the process is complete on the computer, safely remove the device and reconnect it to the smartphone. MIUI should recognize the already prepared drive without errors. If the problem persisted in the damage sectors, a full disk surface check on the PC could fix the situation.
What if the computer asks you to format the disk, but does not allow it?
Resolving errors when working with USB
Users often encounter a message «USB-The device is damaged" or "Formatting required" even if the flash drive is in good condition. This may be due to the incorrect termination of the previous session.
If the error is repeated, it may be power shortages: External hard drives require more power than standard smartphone ports can provide. Using a Y-shaped cable to supply additional power often solves the problem.
- 🔄 Reboot the device with the connected flash drive.
- 🔌 Check the connection density in the port.
- ⚡ Use active USB-disk-hub.
- 🛠 Check the drive for viruses through the PC.
It’s also worth considering that some third-party file managers may conflict with Xiaomi’s standard system.If problems started after installing a new file application, try removing it and using the built-in Explorer.
⚠️ Note: If the flash drive is no longer detected on all devices (PC, TV, other phones) and heats up in the connector area, there is likely a physical failure of the controller.