Xiaomi’s current smartphones have a huge internal memory, but even 512 gigabytes can run out at the wrong time, especially if you like to shoot videos in the future. 4K An external drive becomes the ideal solution for expanding storage, however, the Android operating system often does not see the device immediately after connecting due to differences in file systems. NTFS, Windows is not always properly supported by mobile devices without special applications or superuser rights.
The formatting process on shell devices MIUI HyperOS is as simple as possible and takes only a few minutes, but requires attention to detail. You need to understand that this operation will completely destroy all data on the drive, so pre-backup to the computer is a mandatory step that can not be ignored. In this article, we will discuss in detail all the nuances of preparing, choosing a file system and eliminating common errors when working with the file system. USB-accumulator.
Before you start technical manipulation, you need to make sure that the hardware is physically healthy. Cheap adapters or damaged cables can cause the phone to not be able to identify the connected device, even if the flash drive itself is fully functional. Formatting is the process of creating a file structure that makes the drive readable for a particular operating system, in this case for Android.
Preparation of equipment and compatibility check
The first step is to ensure a stable physical connection between the smartphone and the external drive. Most modern Xiaomi models are equipped with a USB Type-C port that supports OTG (On-The-Go) technology, which allows you to connect peripherals directly. However, older models or budget Redmi series may require this feature to be enabled manually in settings, although in recent versions of the firmware this happens automatically.
You'll need a special adapter or adapter cable that converts the flash drive connector to a format compatible with your phone's port. If you're using a bulky hard drive, the port might not have enough power to rotate it, and you'll need active power from an external source. For conventional flash drives, there's a good enough adapter that doesn't have any visible damage or oxidation on the contacts.
Note the size of the device being connected. Smartphones may not work properly with drives larger than 128 gigabytes if they are formatted into the NTFS file system without using third-party drivers. In such cases, it is better to prepare the flash drive on the computer in advance, choosing a compatible format, or be ready to use specialized software.
⚠️ Warning: Before connecting, make sure that the smartphone is charged at least 30-40% The process of initializing and formatting an external drive may require significant power consumption, and suddenly turning off the phone will damage the file system.
☑️ Pre-formatting verification
Using the built-in settings menu Xiaomi
The MIUI-based Android operating system provides a native tool for managing external drives that hides deep in the settings menu. Once you plug in the notification curtain, a message usually appears that, when you tap it, you can quickly go to control the device. If the notification does not arrive, you manually open the Settings section and find the item responsible for memory or connected devices.
Depending on the version of the shell, the path may vary slightly, but the logic remains the same. You need to find the Warehouse or About Phone section, which displays a list of all available drives. USB-the storage device and will offer options, including formatting.
Select your flash drive from the list of available devices. It usually appears as "USB-It's a "storage" with a volume, and you click on it, and you'll see the space available and the control button, and it's important not to confuse the internal memory of the phone with the external flash drive, so that you don't accidentally format the smartphone itself.
Once the device is selected, the system will issue a warning that all data will be deleted, confirm the action, and the process will go automatically, during which time do not remove the flash drive or block the screen, so as not to interrupt the recording of service data.
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If there is no formatting button in the standard menu, try removing the flash drive, restarting the phone and plugging the drive back in again – this often solves driver problems.
File system selection: FAT32, exFAT or NTFS
One of the most critical points is choosing the right file system format, as it depends on the compatibility of the flash drive with other devices and the ability to write large files. Android initially works best with the FAT32 format, which provides maximum compatibility, but has a limit on the size of one file at 4 gigabytes.
For modern devices and large amounts of data, exFAT is preferable.This file system is devoid of the limitations of FAT32 and supports huge files, while remaining fully compatible with most modern Xiaomi smartphones and Windows computers. This format is often chosen by the system by default when formatting large storage drives.
NTFS is native to Windows, but on Android, it requires special software or root rights to fully record. Without additional applications, the phone can only read NTFS files or not see the drive at all. So if you plan to use a flash drive primarily with your phone and TV, you'd better choose exFAT.
Below is a comparison table that will help you decide on the choice of format depending on your tasks:
| File system | Max. File size. | Compatibility with Android | Best application |
|---|---|---|---|
| FAT32 | 4GB | Perfect. | Documents, photos, music |
| exFAT | No restrictions. | Great. | 4K video, large archives |
| NTFS | No restrictions. | Requires drivers | Working only with PCs |
| EXT4 | No restrictions. | Only Root. | Expanding internal memory |
Formatting through the Application Explorer
An alternative and often more convenient way is to use the standard File Manager app, which is pre-installed on all Xiaomi smartphones, which allows you to manage files and drives in one interface without switching between system settings. Open the application and find in the top drop-down list or in the side menu your connected USB-flash-drive.
After you go to the root directory of the flash drive, click on the menu (usually three dots or stripes) in the corner of the screen. In the list that appears, select Storage Settings or Format. The interface will be as simple and clear as possible, duplicating the functionality of the system settings.
Using a conductor is especially convenient if you need to first check the contents of the flash drive, copy important files to internal memory, and then clean up, which reduces the risk of accidental data loss, since you visually control the process.
If the standard Explorer doesn’t display the flash drive or format it, you can use third-party apps from Google Play, such as Total Commander or FX File Explorer, which have advanced access rights and can work with drives where standard tools are powerless.
⚠️ Note: When using third-party file managers, always check the permissions requested. The application should not require access to your contacts or calls to work with the file manager. USB-accumulator.
What if the flash drive is identified as damaged?
Solving common mistakes and problems
Despite the simplicity of the procedure, users often encounter various errors that prevent the external drive from working properly "USB-The storage device is empty or has an unsupported file system. This means that the phone sees the device but cannot read its data structure, in which case formatting is the only solution.
Another common situation is that the phone does not respond to the USB flash drive at all, in which case check if the OTG function is enabled in the settings. On some Redmi and POCO models, you need to manually activate the USB OTG option in the Additional settings or Advanced settings section.
Also, you need to consider temperature: if you write or read large amounts of data for a long time, the flash drive and port of the phone can heat up. If the device overheats, the system can automatically turn off external storage to protect the components. Let the technician cool down before reconnecting.
If nothing works, try clearing the Media Storage cache in your application settings. Sometimes it's the system component that's failing to properly index new file systems. Rebooting your phone after this procedure often returns to work.
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Most errors are not related to a USB drive breakage, but to an incorrect file system or a port power shortage.
Safe extraction and care of the storage device
Correctly completing an external drive is as important as connecting it.Android uses data caching to speed up work, so even after the copy progress bar has reached 100%, data can still be written in the background.Abruptly removing the flash drive can lead to file spreadsheet damage and file loss.
For safe extraction, lower the notification curtain and find the icon USB-Press Safe Removal or Disable, and only after you have a notice that the drive can be removed, physically disconnect the adapter.
Check the state of the flash drive regularly, and every few months it is recommended to connect it to the computer and run an error check, which will help to prolong the life of the drive and avoid unpleasant situations with the loss of important photos or documents at the most inopportune time.
Store the flash drive in a dry place, protected from static electricity and direct sunlight. OTG adapter contacts also need to be clean - gently wipe them with dry soft cloth if you notice contamination.