Modern smartphones Xiaomi, Redmi i POCO have huge amounts of built-in memory, but sometimes there is a need to quickly copy gigabytes of photos or videos to a computer. The most reliable and fastest way to do this is a direct cable connection. However, many users are faced with a situation where, after connecting the cable, the phone only charges, but the files remain inaccessible.
This is due to the fact that the system Android activates the “Charge Only” mode by default for security purposes. To change this setting and open access to the file system, you need to perform a few simple steps in the device settings. In this article, we will analyze in detail the process of activating the data transfer mode, and also consider the nuances of working with the shell MIUI and HyperOS.
Understanding the principles of operation USB interface will help you avoid common mistakes and quickly establish data exchange between a mobile device and a desktop computer or laptop. We will consider both standard methods and solutions for cases when the connection is not established automatically.
Why the phone is not visible to the computer immediately after connection
When you first connect your smartphone Xiaomi to the PC, the operating system blocks access to data. This is a standard security measure privacythat prevents the theft of information if you connect to someone else's or infected computer. Without explicit confirmation from the user, the device operates solely as a power source.
In addition, drivers MTP (Media Transfer Protocol) may not install automatically if the computer is missing the necessary components or is using a non-original cable. Often the problem lies in the cable itself: many cheap cables are designed only for charging and do not have data lines.
⚠️ Warning: If you are using a third-party cable, make sure it supports data transfer. Cables that come with headphones or cheap gadgets often have only two contacts inside and cannot transfer files.
It is also worth considering the version Android and type of file system. On new models, power saving algorithms can aggressively disable ports when idle, which sometimes prevents connection initialization. It is important to check the physical integrity of the connector HyperOS Power-saving algorithms can aggressively disable ports when idle, which sometimes prevents connection initialization. It is important to check the physical integrity of the connector USB Type-C for dust or moisture.
Use the original cable supplied or certified analogues marked Data Sync. Cables that support fast charging usually guarantee data transfer.
Basic instructions: activating file transfer mode
The easiest way to open access to memory is to use the notification shade. After connecting the cable to your smartphone and computer, unlock the device screen and swipe down from top to open the panel notifications. There you will see a system message about USB connection.
Click on this notification. A menu for selecting the USB operating mode will open, where by default there is a checkmark next to the “Charging only” item. You need to switch the mode to "File Transfer" or “Photo Transfer (PTP)”. After selection, the system will make a characteristic sound, and a new removable device will appear on the computer.
- 📱 Unlock the smartphone screen before connecting or immediately after it.
- 🔌 Connect the cable to a USB 3.0 or higher port on the computer for maximum speed.
- 👆 Click on the “Charging via USB” notification in the curtain.
- 💾 Select “File Transfer” in the menu that appears.
If the notification does not appear, try reconnecting the cable to another port. Sometimes it takes a few seconds for the system to recognize the device Windows. Make sure that the smartphone screen is active, as on a locked device, some security settings may hide the mode selection menu.
☑️ Checking the connection
Setting the default mode through the developer menu
For advanced users who constantly transfer large amounts of data, it is convenient to configure the file transfer mode to automatically turn on every time you connect. This function is hidden in a special section "For Developers", which is disabled by default in the system MIUI.
To activate this section, go to Settings → About phone and find the item "MIUI version" (or "OS Version"). Quickly click on it 7-10 times in a row until the pop-up message “You have become a developer” appears. After this, in the main settings menu, in the section Additional settings, a new item will appear "For developers".
Inside this menu, scroll down the list to the “Debugging Settings” block. Find the parameter Default USB configuration. Click on it and select the value "File transfer". Now, every time you connect to a PC, the phone will automatically switch to the desired mode without the need for manual switching in the curtain.
⚠️ Attention: The “For Developers” section contains critical system settings. Do not change other parameters if you are not sure of their purpose, as this may lead to unstable operation of the smartphone or reset the settings.
What to do if the “USB Configuration” item is inactive?
Sometimes this item is blocked if USB debugging is enabled. Try first disabling the “USB Debugging” slider, selecting the desired mode, and then turning debugging back on if it is needed for other tasks.
Solving problems with drivers on the computer
Even with the smartphone configured correctly, the computer may not see the device due to problems with the software on the PC side. The operating system usually automatically loads drivers, but in some cases this process fails, especially on older versions of the system or builds. Check your computer. Connect your phone, select the file transfer mode and open the manager (click Windows usually automatically downloads drivers MTP, but in some cases this process fails, especially on older system versions or builds Windows N.
Check Device Manager on the computer. Connect your phone, select the file transfer mode and open the manager (press Win + X and select the appropriate item). If you see a device with a yellow exclamation point or in the "Other devices" section with the name "MTP" or "Android", then the driver is not installed correctly.
| Symptom in Device Manager | Probable cause | Action |
|---|---|---|
| Unknown device | Missing chipset drivers | Update Windows Update drivers |
| MTP USB Device (error) | Driver conflict | Remove the device and reconnect |
| The device is not displayed | The port or cable is faulty | Check the physical connection |
| Portable Device (Xiaomi) | It works correct | The problem is in the wire or phone settings |
To correct the situation, right-click on the problematic device, select "Update driver" → Automatic search for drivers. If this does not help, try selecting Remove device, disconnecting the cable, restarting the computer and connecting the smartphone again. The system will try to reinstall the driver from scratch.
Alternative methods: USB and PTP debugging
If the standard mode MTP does not work stably, you can try using the mode PTP (Picture Transfer Protocol). This protocol emulates a digital camera connection and often works where MTP fails. It allows you to transfer photos and videos, although access to all folders may be limited.
Another powerful tool is USB debugging. It is located in the same “For Developers” menu. Enabling this option allows the computer to gain advanced access to the system through tools ADB. This is useful for advanced users who need to manage system files or make full backups.
When debugging is enabled, a request will appear on the smartphone screen every time you connect with the fingerprint of the computer's RSA key. You must click Allow USB Debugging? with the computer's RSA key fingerprint. Must click Allowto establish a trusted connection. Without confirming this request, data transfer may be blocked.
⚠️ Attention: Never enable “USB Debugging” when connecting to public charging stations or unfamiliar computers. This could give attackers access to your data or the ability to install malware.
PTP mode is an excellent backup option if you urgently need to upload photos, and the normal file transfer mode is not detected by the Windows system.
Frequently asked questions (FAQ)
Why is file transfer very slow?
Low speed can be caused by using the port USB 2.0 instead of USB 3.0 (usually blue), a faulty cable, or background processes on the smartphone that are indexing files. Also, the speed drops when transferring many small files.
Is it possible to transfer files without a cable to Xiaomi?
Yes, you can use the built-in application Mi Share, cloud services (Google Drive, Mi Cloud) or third-party apps like Send Anywhere. However, the wireless transmission speed is usually much lower than over a high-quality cable.
The computer sees the phone, but the folders are empty. What's the matter?
Most likely, the smartphone is blocked. To access internal storage, the device must be unlocked with a password, fingerprint, or face. Also check if Guest mode or access restriction is enabled in the security settings.
How to disable automatic photo synchronization when connected?
If the Windows Photos application automatically launches when connected, go to the AutoPlay settings in Windows (Settings → Devices → AutoPlay) and disable the action for your smartphone or select the “Do not request” option.
Why is the file transfer mode reset to charging?
This may occur due to a weak contact in the connector, overheating of the port, or aggressive power saving operation. Try cleaning the port from dust and disabling the “Battery optimization” option for system processes responsible for USB.