Xiaomi smartphone owners often face the need to quickly transfer photos, videos or documents between the device and the computer. The standard connection protocol is often set by default solely to charge the battery, which hides the phone's file system from the outside world. This is done for security reasons to prevent unauthorized access to data when connecting to public charging stations or other people's PCs.
However, to fully work with files, the user needs to manually activate the appropriate mode in the Android system. On the shell of MIUI or the new HyperOS, this process has its own features that can confuse the inexperienced user. In this article, we will discuss in detail all the stages of configuration, from basic mode switching to complex engineering menus for advanced users.
The right interface setup allows not only to copy files, but also to use the phone as a modem or debug applications. Ignoring the rules of connection can lead to the fact that the computer simply does not see the device, limiting itself to power. It is important to understand the difference between work modes. USB-Find the port and find out where to find them in the hidden menu.
Basic USB Mode Configuration in Notifications
The fastest and most common way to switch your smartphone to file transfer mode is to use a notification curtain. Immediately after the cable is physically connected to your computer, the Android operating system generates a system event. The user must lower the top notification bar, which displays the connection status, usually marked as “Charging via USB”.
By clicking on this notification, you will open the configuration selection menu. USB. Here, the system will offer several use cases of the connection, among which we are interested in "File Transfer" or MTP. The choice of this item instantly changes the logic of the port, making the internal memory and the port of the port. SD-map visible to Windows or macOS Explorer.
Sometimes the notification may not appear immediately or be hidden by the power saving system, in which case it is recommended to unlock the device screen and reconnect the cable. If this does not help, it is worth checking the integrity of the cable itself, since some cheap cords only support charging and do not have lines for data transmission.
⚠️ Note: If the phone is only charging when connected, but the computer does not make the device connection sound, try replacing it. USB-Many powerbank cables don't have internal contacts to transmit data.
For stable operation, it is desirable to use the original cable, which comes with the Xiaomi device, and it is guaranteed to support the necessary transfer speeds and correct switching of contacts inside the connector.
Developer settings and debugging over USB
If the standard menu doesn't appear or requires a deeper interaction with the system, you need to activate the hidden developer menu, which is a section for engineers and advanced users, where the debugging settings are located, and to log in to it, you need to go to the About menu and quickly click on the MIUI build number several times.
Once the developer menu is activated, a new option will appear in the settings list, find the “Additional” section or immediately go to “USB Settings,” where you can set the default mode hard so that you don’t manually select it in the notification curtain every time.
The key parameter here is “Debugging by USB». Turning it on allows the computer to send commands to the phone, which is necessary to work with console utilities like ADB. Without this mode, many programs for managing a smartphone with a PC will not be able to correctly determine the device.
Also on this menu, the option “Install via USB” is often found, which allows you to install applications directly from your computer, bypassing the security check of the Xiaomi cloud, and this feature may require the binding of a Mi Account and a SIM card.
Regime. USB-modem RNDIS
In addition to file transfer, port USB Xiaomi can run in network adapter mode. This feature is known as USB-modem, allows you to distribute mobile Internet to a computer that does not have its own Wi-Fi module or requires the most stable connection with minimal latency.
To activate this function, you must first enable mobile data transmission on the smartphone itself. USB (available through the curtain or developer settings, you should select the item «USB-The computer will automatically determine the new network connection.
The advantage of this method is the high speed and no signal loss typical of wireless networks, in addition, the phone is simultaneously charged from the port of the computer, which saves battery power when using the Internet.
| Parameter | MTP Mode (Files) | USB-modem | Just charging. |
|---|---|---|---|
| File transfer | Available. | Unavailable | Unavailable |
| Internet access | No. | Got it (handout) | No. |
| Charging the device | There is. | There is. | There is. |
| Use of CPUs | Minimum | Average. | Minimum |
In hot weather, it is better to remove the cover to improve heat sink.
☑️ Connection check USB
Solving driver problems on Windows
A common problem when connecting Xiaomi to Windows computers is the lack of the necessary drivers.The operating system can identify the device as an “Unknown Device” or simply ignore it, even if the file transfer mode on the phone is chosen correctly.
To solve this problem, you can try updating drivers through Device Manager. Find your device (often marked with a yellow exclamation mark) in the list, right-click and select "Update Driver." Then specify the path to the driver folder if they are downloaded, or let Windows find them automatically.
Official drivers are often included in the Mi PC Suite or Mi Unlock program. Installing the bootloader unlock utility automatically installs all the necessary components of ADB and Fastboot, which solves 90% of the phone’s visibility problems.
⚠️ Warning: Do not download drivers from questionable aggregator sites. Use only official sources or built-in Windows updates to avoid installing malware.
If the automatic installation didn’t work, you can try manually selecting a driver from the list of compatible devices. In Device Manager, when you update the driver, select “Install the driver from the list of available drivers”, then find the Xiaomi or Android manufacturer and select the standard MTP USB Device driver.
Features of connecting to macOS and Linux
Unlike Windows, macOS and Linux operating systems do not have built-in support for the MTP protocol that uses Android to transfer files. When you first connect a Xiaomi smartphone to an Apple computer, the user may not see any new drives in the Finder.
To solve this problem, you need to install a special application on macOS, such as Android File Transfer or OpenMTP. These programs create the necessary bridge between the phone’s file system and the Mac interface, allowing you to copy files at high speed.
On Linux systems, MTP support is built into file managers like Nautilus or Dolphin, but may require additional packages such as gvfs-mtp or mtp-tools. Once packages are installed and the system is restarted, the phone should be defined as a removable medium.
When working with Linux, you also need to check the user's access rights. USB-devices for ordinary users, requiring the input of the administrator password at the first connection.
Frequent questions and troubleshooting
Even with all the instructions, there may be specific situations that require a personalized approach, and the answers to the most popular questions that will help you troubleshoot problems without going to the service center are summarized below.
If the computer sees the phone but does not open the folders, it is possible that the device's screen is locked. Android for security reasons forbids access to the file system from an unfamiliar PC until the user unlocks the screen and confirms trust in the computer.
In cases where the connection is permanently reset, the problem may lie in contamination. USB-Carefully clean the port with a soft brush or compressed air, as compressed dust interferes with the tight contact of data lines.