Modern smartphones Xiaomi and Redmi are equipped with large amounts of internal memory, but with active use of multimedia or installation of heavy applications, free space ends quickly. OTG-But before you use it for the first time or after you use it on other gadgets, you often have to clean the media and put its file structure in order.
The process of formatting on the MIUI shell or the new HyperOS is as simple as possible and does not require root rights or a computer connection. You do not need to be a computer expert to perform this procedure in a few minutes right in the settings menu. The main thing is to understand that formatting will completely destroy all data, so you need to approach the operation consciously.
In this article, we will discuss in detail how to prepare a flash drive for work, which file system format to choose for maximum compatibility, and what to do if the phone does not see the connected drive. We will look at the nuances of working with different versions of Android and analyze the typical errors that users encounter.
Preparation of the device and compatibility check
Before you start formatting, you need to make sure that your smartphone technically supports working with external devices. USB-Most of today’s Xiaomi, Poco and Redmi models have built-in support for the feature. OTG (On-The-Go), but on older or budget devices, this option may be missing or require activation. To connect, you will need a special adapter from the Micro-USB or Type-C connector to the standard one. USB-A.
It is also important to check the physical condition of the flash drive and adapter itself. If the contacts are oxidized or the cable is damaged, the phone may not identify the device at all, leading to an erroneous conclusion about the incompatibility of formats. Connect the drive and note that the corresponding notification appears in the status curtain or changes the battery icon if the flash drive consumes a lot of power.
⚠️ Warning: If after connecting the flash drive, the phone begins to heat up very much or discharge quickly, immediately turn off the drive. USB-devices that are dangerous for the smartphone power controller.
To diagnose support, you can use the USB OTG Checker app from Google Play, which will tell you exactly if your phone's hardware sees external devices, and if the check is successful, you can move to the software part of the process.
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Use quality OTG-Screened cables to avoid loss of data transfer speed and interference when reading large files.
Step-by-step instructions for formatting through settings
The safest and most correct way to get the flash drive in order is to use the built-in tools of the Android operating system. This method ensures that the file system is marked correctly, without sector errors and logical glitches. You do not need to search for third-party programs, since the MIUI system tool copes with the task perfectly.
To start, open the settings menu for your device. The path may vary slightly depending on the firmware version, but the logic remains the same. Find the storage partition and select the connected partition. USB-storage.
Connect the flash drive through OTG-adapter
Go to Settings → About the phone → Storage
Choose. USB-recorder
Press the "Format" button.
Confirm the action and wait for completion-->
Once you have selected the drive, the system will offer two use cases: as a portable storage device or as part of internal memory. To format into standard mode, select the first option. Press Format and confirm your consent in the warning pop-up window. The process will take from a few seconds to a couple of minutes depending on the storage volume.
| Action. | Where to find on the menu | The result |
|---|---|---|
| Connection | Physical connection via port | Emergence of notice «USB-plug-in» |
| The vault menu | Settings → About the phone → Storage | Displaying a list of all disks |
| Starting the cleanup | Select USB → Menu (three dots) → Format | Erasure of data and creation of a new partition table |
| Completion | Automatic notification | File recording readiness |
Once the process is complete, the system will notify you of the success, and the USB drive will create standard Android, DCIM and others system folders, and now the drive is ready to record photos, music and documents.
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Using system formatting through settings is the only guaranteed way to avoid file system compatibility errors on Xiaomi.
File system selection: FAT32, exFAT or NTFS
One of the most important questions in formatting is choosing the right file system format, which depends on where you can read the data and how big the files you can write. Xiaomi smartphones usually have two main options: FAT32 and exFAT, less support for NTFS.
FAT32 is the most versatile format. It reads on almost any device, from old in-car radios to game consoles and TVs. But it has a serious limitation: it doesn't support recording files larger than 4GB. If you plan to store movies in high resolution, this option won't work for you.
The more modern exFAT system has no file size limit and works better with larger memory volumes. It is optimal for flash drives of 64 GB and higher. NTFS format is more commonly used in Windows and by default on Android may not be supported without special drivers or applications like Microsoft exFAT/NTFS for USB by Paragon.
- 📀 FAT32 — Choose for compatibility with auto audio, TVs and small document transfers.
- 💾 exFAT is the perfect choice for storing movies, backing up and working with large archives.
- 💻 NTFS — Use only if you are exclusively running Windows and have installed support on your phone.
⚠️ Note: When formatting through a standard smartphone menu, the system often chooses the format itself (usually exFAT for large volumes). FAT32 For flash drives more than 32 GB standard Android means is not possible – this will require a computer.
Use of the Explorer application for file management
MIUI has a powerful file manager that also allows you to perform basic operations with your drives. While full formatting is best done through settings, Explorer is convenient for quick status checks and access to hidden cleaning functions. Open Explorer on the home screen or in the Tools folder.
Go to the USB partition or click on the menu icon to switch to an external drive. Here you can see the real space and quickly delete unnecessary files manually if full formatting is not required. Sometimes the system suggests formatting the disk through the pop-up window in the explorer on the first connection.
If a standard conductor doesn’t see a flash drive, try installing an alternative file manager, such as Total Commander or FX File Explorer.These apps have more advanced plugins for working with USB and can help diagnose the problem if standard tools are silent.
Hidden functions of the conductor
Problem Solving: The phone doesn't see the flash drive or gives out an error
It's not uncommon for Xiaomi to not respond to a connected drive or write a message saying "File system is corrupted," and often it's not because of a breakdown, but because of an incompatibility of energy saving or file structure. First, try simply restarting your smartphone with a connected flash drive, which helps 50% of the time.
If the error persists, check the power saving settings. In some cases, the system blocks the power supply to the power supply. USB-port to save battery power. Go to Settings → Battery → Modes and select Performance mode for formatting time. Also make sure that no debugging is included in the Developer section. USB, which sometimes conflicts with the host mode.
If you report file system damage, the phone may suggest you fix the bugs. Accept a check, but if it doesn't work, you'll need to format through your computer with a full partition clean. Use Disk Management utility in Windows to delete all partitions on your flash drive before you try again on your phone.
- 🔌 Check the density of the adapter connection in the smartphone connector.
- 🔋 Make sure your phone battery is above 20% or the system may block external devices.
- 📱 Try connecting the flash drive through another OTG-cable.
Safe extraction and care of the storage device
Finishing the external drive correctly is critical to maintaining data integrity. Never pull the flash drive out of the port when writing or reading files, it is almost guaranteed to lead to logical errors and loss of information. Always use a software method to disable.
To safely remove the device, lower the notification curtain. There you will find a notification about the connected device. USB-Press the Safe Removal or Disable button, only after the message appears, "May be removed." USB-Physically disconnect the adapter.
⚠️ Attention: Regular “pulling” of the flash drive without safe extraction leads to rapid wear of memory cells and the appearance of broken sectors, which can not be subsequently restored software.
To prolong the life of the flash drive, try not to keep it permanently connected to the phone, especially if you actively use navigation or cameras that constantly write logs.