How to Clean a USB Drive on Xiaomi Redmi: The Complete Guide

Modern smartphones Xiaomi and Redmi have a huge amount of internal memory, but many users are still actively using external memory. USB-Over time, the flash drive is filled with junk files, app cache or fragments of remote programs, which can slow down the device or lead to read errors. Cleaning the external storage becomes a necessary procedure to maintain system stability. MIUI.

The cleaning process depends on whether you connect the flash drive directly through the USB Type-C port or use a wireless connection. The Android operating system that runs the MIUI shell has built-in tools for managing the file system. However, not all users are aware of hidden formatting features or how to force the deletion of infected files. In this article, we will discuss all the current methods of freeing up space.

It’s worth noting that simply uninstalling applications doesn’t always remove any residues on the external media. A file system can contain hundreds of hidden folders that take up gigabytes of space. Proper cleaning requires not only deleting visible documents, but also checking for system errors. Below are step-by-step instructions to help you get the drive back to its original speed and free space.

Device preparation and storage diagnostics

Before you start radical measures, such as formatting, you need to diagnose the current state of the drive. USB-drive to Xiaomi or Redmi smartphone and wait for the notification of the connection. the system will automatically scan the file system and offer use cases, but for deep cleaning we will need to go to the settings menu.

Open Settings and find About Phone, then select Warehouse. This shows detailed memory usage statistics. If the flash drive is correctly identified, you'll see a data distribution schedule. If the display error or no partition with the external media, the problem may be physical damage to the port or the flash drive itself.

⚠️ Warning: If the smartphone starts to heat up a lot when you connect the drive or the battery runs out faster than usual, immediately turn off the device. USB.

For more accurate analysis, you can use Xiaomi's built-in Explorer app. Go to the USB category and sort files by size. Often it turns out that the lion's share of space is occupied by forgotten video files or archives. Deleting unnecessary data at this stage can free up up to 30% of space without the need for complete cleaning.

Standard cleaning through file manager

The most secure and common cleaning method is using the standard MIUI interface. This method does not require installing third-party software and minimizes the risk of deleting system files. Open the Explorer app on the home screen and select the thumb drive tab. Here is your drive's root directory.

Select all the files you need in the control menu to select a group of objects. After selecting, click Remove (basket icon). It's important to understand that the files first move to the conductor basket, taking up space until the final cleanup. To free up the space, you need to go to the conductor settings and clear the basket.

In some cases, users encounter files that refuse to be deleted, which may be due to the fact that the file is being used by the background process or has a damaged structure, in which case, rebooting a smartphone with a connected drive helps.

• 📁 Select all.tmp and.log files – these are temporary data that are safe to delete.
• 🗑️ Check the folder. Android/obb Remains of remote games that take up gigabytes.
• 🔍 Use the.apk extension search to find old app installers.

If standard methods fail to delete a file, it may be labeled as secure or system, in which case it is not recommended to use third-party file shredders unnecessarily, as they can damage the NTFS or FAT32 file distribution table.

Formatting USB-Xiaomi-based storage

When simple file deletion doesn't work or the drive is unstable, it requires full formatting, which destroys all the information on the media and creates a new file system. Before starting, make sure that important data is copied to the computer or to the cloud, as it will be extremely difficult to recover it after formatting.

To start the process, go to Settings → The phone. → Find your vault on the list. USB-You can click on the drive, and in the menu that opens, select Storage Settings or Format. MIUI It will alert you to the loss of all data, confirm the action by entering the screen unlock pin if necessary.

File system selection plays a key role in compatibility. For most modern Xiaomi smartphones, exFAT is the best choice, as it supports files larger than 4 GB and runs faster than the outdated FAT32. However, if you plan to use a flash drive on older devices or car radios, you’d better opt for FAT32.

The formatting process can take anywhere from 30 seconds to a few minutes depending on the storage capacity. Don't remove the flash drive or turn off the phone at that point. Once complete, the system will notify you of success and the drive will show up as a clean device.

OTG Mode Use and Compatibility Issues

OTG (On-The-Go) technology allows your smartphone to act as a host for peripherals. Not all Redmi models support this feature hardwarely, although it is often software-based. If your phone doesn't see the flash drive, check the model specifications on the official website or in the Device Information app.

A frequent problem is the underpowering of the port. flash drives with high power consumption (especially SSD-Disk without power) may not be launched from the smartphone. OTG-cable with an additional power connector or active USB-Without an external source of current, the controller simply cannot spin the disk.

⚠️ Attention: Use of cheap low-quality products OTG-adapters can lead to voltage surges and combustion of the power controller on the smartphone motherboard.

If the flash drive is detected but is slow, it may be connected via a USB 2.0 port, while the drive supports USB 3.0. Data transfer speed will be limited by the bandwidth of the phone's port. You can use benchmarks available on Google Play to check the speed.

Delete undeleted files and viruses

Sometimes, malware or files that block deletion are embedded on the drive, miner viruses or Trojans may disguise themselves as system processes, and MIUI may not be enough to combat them, and it is recommended that you install a specialized antivirus, such as Dr.Web or Kaspersky, and perform a full scan of the connected USB.

If the antivirus doesn't work, you can try to clean the drive through your computer. Connect the flash drive to your PC, turn on the display of hidden files in Windows Explorer (View → Hidden Items), and remove suspicious objects manually. Pay special attention to files with autorun.inf names or folders with strange characters.

In extreme cases, when a file is not deleted even from a computer, the command prompt helps. Launch the terminal on behalf of the administrator and use the diskpart command. This is a powerful tool that requires caution, since an error in the selection of a disk can lead to a system partition of the computer.

diskpart


list disk




select disk X (where X is your flash drive number)




clean




create partition primary




format fs=exfat quick

Once these commands are executed, the flash drive will be completely cleaned at a low level. Return it to the Xiaomi smartphone and format it again through the phone menu to create the correct Android folder structure.

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To prevent future virus infections, disable Autostart in the MIUI security settings and do not open files from unknown flash drives without first checking.

Optimization of work with external storage

After successful cleaning and formatting, it is important to properly configure the use of the drive. In modern versions of Android, you can combine internal memory and flash drive into a single space, but this is not always recommended due to the decrease in the overall speed of the system.

Configure automatic saving of photos and videos to an external medium. Go to the Camera app, click on the settings (three bars or gears) and select Save to SD-map USB). This will prevent overflow of internal memory, which is critical for the performance of the smartphone.

Check the state of the drive regularly. Every few months, it is recommended to back up important data and defragment (although this is rarely done on flash memory, checking the file system is useful). 4K.

• 🚀 Use cloud-enabled file managers to automatically upload archives.
• 🛡️ Install an application to monitor the storage temperature.
• 🔄 Periodically check the flash drive for errors through the Settings menu → Warehouse.

⚠️ Note: It is not recommended to keep a single copy of important documents only on the USB-Flash memory has a limited lifetime of write cycles and can fail at any time without warning.

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Regular maintenance and proper formatting USB-The drive extends its life and ensures stable operation of the multimedia functions of the Xiaomi smartphone.

Frequently Asked Questions (FAQ)