Today’s Xiaomi smartphone users often face a situation where, after connecting the cable to the computer, the device only starts charging, ignoring attempts to access the file system. This is the standard security-oriented behavior of the Android operating system, but it creates barriers to fast work with documents and media. To share files, you need to manually activate the desired connection protocol in the system menu.
The problem may lie not only in the software settings, but also in the physical state of the cable or port. USB-Low quality cables often only support charging, without lines to transmit information, so before you delve into the complex settings, it is worth checking the integrity of the accessories and make sure that the computer port is correct.
In this article, we will discuss all possible ways to switch the mode of operation. USB-You'll learn how to quickly activate file transfers through the notification curtain, how to use a hidden engineering menu to force a protocol change, and what to do if the computer stops seeing the device. MIUI HyperOS algorithm of actions may vary slightly depending on the version of Android.
Checking physical connections and cables
The first step is always to diagnose the hardware, and many users forget that not all cables are the same, cheap wires that come with power banks or are bought in transitions often have only two working veins to power, and to work properly with a computer, you need a cable that supports USB 2.0 or higher, with data lines sold off.
It is also worth paying attention to the state of the USB-Over time, the port accumulates dust and pile, which prevents the tight contact of contacts. Careful cleaning with a wooden toothpick or compressed air can solve the problem of charging only".
⚠️ Warning: Using damaged or poor-quality cables can lead to unstable voltage, which in rare cases causes a motherboard power controller to fail.
Try connecting the device to another USB-port on the computer, preferably directly to the motherboard (behind the system unit), bypassing the front panels or USB-This will eliminate power shortages that could cause the phone to block data transmission.
Basic method through the notification curtain
The simplest and most common method of switching mode is available immediately after you connect, and when you connect your smartphone to your PC, Android defaults to Charge Only mode, and to change this behavior, you lower the top notification curtain.
Find a notification with the text "Charging through" USB" or "Click for other actions." This message will open the mode selection menu after the tap, and you will select "File Transfer" or MTP. It is this protocol that allows a computer to see the internal memory and memory card of a smartphone as an external drive.
If the notification does not appear automatically, check the notification settings. Sometimes the system or third-party memory cleaners can block the system alerts. Also make sure that the smartphone screen is unlocked at the time of connection, as on a locked device, some USB modes may not be activated for security reasons.
Setting up USB mode by default in the developer menu
For those who want to make sure that the smartphone always automatically switches to data mode when connecting to a PC, there is a deeper setup method. It requires activating the developer menu. To do this, go to Settings → About Phone and quickly click on the MIUI version or OS version seven times.
Once you have a "You've become a developer" message, go back to the main settings menu and find "Additional" or "Extended Settings" and you'll need to select "Developers" inside. Find the "Network" or "Debugging" section where "Default USB Configuration" is located.
In the list that opens, select File Transfer. Now, every time you connect to a new computer, the system will give priority to this mode, but it is worth remembering that on some firmware versions, this setting may be reset after the device is restarted.
Forced regime change through engineering menu
In situations where standard methods don't work, you can use the engineering menu to diagnose and reconfigure ports, which is considered more advanced and allows you to see how the system sees. USB-low-level connectivity.
To enter the engineering menu, open the Phone app and dial ##6484##. In the test list that opens, find the item associated with USB or Connectivity, where you can check the port's health and force the modes to be switched if the software interface is blocked.
An alternative way for advanced users is to use ADB-If the computer has drivers installed ADB, You can send a command to change the regime:
adb shell svc usb setFunctions mtpThis command forces the device to MTP mode, but it requires that the smartphone already has USB debugging enabled, and if the computer can't see the device even for debugging, this method won't work without first tuning it through the interface.
| USB mode | Description | What is used for |
|---|---|---|
| Just charging. | Powering the device, data transfer is disabled | Safe charging in public places |
| File Transfer (MTP) | Access to the file system as a disk | Copying photos, videos, documents |
| Photo transfer (PTP) | Emulation of a digital camera | Working with photos on old PCs |
| USB-modem | Distribution of the Internet through cable | Providing network access for PCs |
Solving driver problems on Windows
Often the problem is not the phone, but the lack of the right drivers on the computer. Windows can see the device as unknown or only identify it as a charger. To fix the situation, you need to install the official Google USB Driver or Mi PC Suite drivers.
If the device is identified with a yellow exclamation mark in Device Manager, try manually updating the driver. Select the device, click Update the driver → Select the driver from the list available. In the list, find "MTP USB Device" or "Android Composite ADB Interface".
⚠️ Note: Installing drivers from unverified sources can lead to malware infection of your computer. Use only official manufacturers' websites or verified repositories.
Also, check Windows services. Make sure that Windows Image Acquisition (WIA) and Plug and Play are running automatically, without which you can't properly display media devices.
Alternative methods of data transmission without cable
If physical connectivity is challenging, modern technology offers wireless counterparts that are often faster and more stable than older USB 2.0 cables. Xiaomi’s ecosystem has a built-in Mi Share (or Xiaomi Share) tool that allows you to instantly transfer files to other Xiaomi devices and smartphones with support for this standard.
To communicate with your computer, it is convenient to use the Wi-Fi File Access function in a standard Explorer. Go to the Explorer app, select Remote Control or Network Access, turn it on and enter the display. FTP-Address to the address bar of any conductor on the PC.
Another reliable option is cloud services: Google Photos, Google Drive or the Mi Cloud allow you to sync data automatically, and when you connect to Wi-Fi, files will be uploaded to the cloud and available on any device with the Internet.