Xiaomi smartphones have long ceased to be just a device for calling, becoming powerful multimedia centers with a huge amount of memory, often faced with the need to quickly transfer gigabytes of photos, videos or documents to a computer or laptop. The easiest and most reliable way to do this is to use your phone in external drive mode, similar to the usual one. USB-It doesn't require any additional software installation and works on almost any PC running Windows, macOS or Linux.
However, despite the simplicity of the concept, connecting Redmi or Poco to a computer is sometimes difficult. Android defaults to block access to files for security purposes, requiring manual confirmation from the user. USB-Ports can affect data transfer speed and connection stability, and understanding these nuances will help you avoid wasting time and frustration when working with the file system of the device.
In this guide, we’ll take you through all the steps of setting up, from physical connectivity to solving common bugs when your computer can’t see your device. You’ll learn how MTP and PTP differ, how to activate hidden developer functions, and why cable quality plays a critical role in file copy speed.
Choosing the Right Cable and Physical Connection
The first and most trivial, but often ignored, step is choosing the cable. USB-The cables are the same: many cheap accessories, complete with headphones or cheap gadgets, are designed solely for charging and have no lines to transmit data. If you connect your phone to a PC and only the charging indicator appears on the screen, it's likely that the problem is in the wire. Use the original cable out of the box or a certified analogue labeled with a slate. USB 3.0 or higher for maximum speed.
It is also important to pay attention to the state of ports. The USB Type-C nest in Xiaomi smartphones is prone to accumulation of dust and pile, which can prevent dense contact of contacts. Careful cleaning of the port with a wooden toothpick or compressed air often solves the problem of intermittent connection. Computer ports, especially on the front of the system unit, may not give enough voltage for stable operation of the phone memory controller.
⚠️ Attention: Avoid using USB-The power shortage can cause a connection to break at a critical point in the recording, which can damage the file system.
When connecting to ports USB 3.0 (usually blue) data transfer speeds can be several times higher than through ports. USB If your computer or laptop is equipped with modern connectors, always connect the cable to them. 4K-Video or backups of applications weighing gigabytes.
Configure USB mode in the developer menu and system
After the physical connection, the most important step is to choose the right mode of operation. USB-By default, the modern version of the shell MIUI And HyperOS sets Charge Only, which is a security mechanism that prevents unauthorized access to data when you connect to public charging stations.
When you plug in your phone, lower the notification curtain. It should show the system message "Charge over USB" or "Settings USB." Clicking on this notification will open the mode selection menu. To work as a flash drive, you need to choose MTP (Media Transfer Protocol) This protocol allows the computer to see the phone's file system and work with it as an external drive, supporting the transfer of files of any type.
Why not use PTP mode?
Sometimes you need a deeper setup through the developer menu. To get there, go to Settings → About Phone and quickly click 7 times on MIUI Version (or OS Version). Once you see the "You're a developer" sign, go back to the main settings menu, select Additional → For Developers. Find the "Debug by USB" section and make sure that the "Default USB Configuration" option is set to the MTP value.
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Turn on the option “Do not turn off USB when you go to sleep” in the developer menu if you plan to transfer files for a long time or use your phone as a webcam so that the screen does not go out and the connection does not break.
Comparison of data transmission protocols: MTP, PTP and USB-accumulator
Understanding the difference between protocols helps to quickly diagnose problems, and when you choose a connection mode, the system offers several options, each with its own limitations and operating system features.
Regime. USB-The drive (Mass Storage) in modern versions of Android is practically not used, since it requires exclusive access to the file system, blocking the operation of the phone itself with files at the time of connection. MTP, This allows your phone and computer to work with files simultaneously using the Android file system.
| Protocol | Appointment | Access to files | Compatibility |
|---|---|---|---|
| MTP | Transfer of media and documents | Full access to folders | Windows, macOS (via Android File Transfer), Linux |
| PTP | Transmission of photo (camera) | DCIM/Camera folder only | All OS, old PCs. |
| MIDI | Musical instruments | No access to files. | Specialized software |
| Just charging. | Safe food | No access. | Anybody. USB-port |
If your computer is running macOS, you will definitely need to install the Android File Transfer or OpenMTP application, since out of the box Mac can not work with the MTP protocol. In Windows, drivers are installed automatically on the first connection, but sometimes manual updates are required through Device Manager.
The solution to the problem: the computer does not see Xiaomi
The situation where the phone is charging but not showing up in My Computer is one of the most common. In addition to the cable problems mentioned above, the driver failure in Windows may be the cause. USB-port, preferably directly to the motherboard (behind the system unit), bypassing the front extension cords.
Check Windows Device Manager. If you have a device with a yellow exclamation mark or an unknown Android device on the list, try updating the driver by selecting Auto Search. Sometimes removing the device from the dispatcher when the phone is connected and then re-scanning the hardware configuration helps.
In some cases, the lock can occur at the level of security settings MIUI. Make sure that when you connect to the smartphone screen, there is no “Allow access to data?” request that you may not have noticed. Without confirming this request, the computer will not physically access the file system, even if the drivers are installed correctly.
⚠️ Note: If the computer makes a device connection sound when connected, but the phone does not charge and does not show the mode selection menu, the power controller is likely damaged or the device is not charged. USB-Phone port, service diagnostics required.
Using Wi-Fi to transfer files without cable
If the cable is lost or the port is shattered, you can use wireless methods that turn the phone into a network disk. The MIUI-built Explorer has a Remote Control (or LAN Access) feature that allows you to access your phone files via a Wi-Fi network using FTP.
To activate, open the Explorer app, go to category and click Remote Control. Press Launch button and the phone will give you an address like ftp://192.168.1.55:2121. Enter this address in the address bar of any Windows folder. Speed will depend on the router, but for documents it's a great option.
There are also third-party solutions, such as Portal by Pushbullet or Snapdrop, that run through a browser, that do not require installation of programs on a PC and allow you to quickly “fly” files over the local network, but for regular work with large amounts of data, the cable method remains the leader in stability.
☑️ Checklist of successful connection
Optimizing speed and working with large files
When copying thousands of small files (such as photos in format) RAW The speed can drop to critical values. The file system of modern smartphones often uses the format F2FS or ext4, It works with small blocks, but the protocol MTP It has overhead for each file. It is recommended to archive many small files in one file. ZIP-pre-transfer.
For users who work with 4K It's important to understand that Windows Clipboard may not be able to handle the data flow if you're using your phone at the same time. Also turn off your phone screen or set a minimum time before bedtime so the system doesn’t try to save energy at the expense of speed. USB-controller.
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Using the original USB 3.0 cable and USB 3.0 ports on a PC can increase copy speeds by 5-10 times compared to standard USB 2.0 cables.
If you regularly carry terabytes of data, consider using it. OTG-adapter and external SSD-This will allow you to back up directly, bypassing your computer, which is especially convenient when traveling. Many flagship models of Xiaomi support fast charging and data transfer over a single port, without requiring separate power to the disk.