The situation where you connect your smartphone to your computer, and in return get only charging and death silence, is familiar to many owners of Xiaomi, Redmi and POCO. Instead of the expected window for file transfer or debugging by ADB, the device simply begins to consume current, ignoring any attempts of Windows or macOS to establish contact. This can happen after updating the operating system, installing new drivers or even for no apparent reason, turning a simple task into a real puzzle.
Before you panic and bring a gadget to the service, it is worth understanding the nature of the problem, most often it is a software conflict, a wrong USB mode or a banal cable damage, and diagnostics should begin with the simplest steps, because in 90% of cases the hardware is good and the failure is logical in nature, which is easy to fix on your own.
In this article, we will take a closer look at all the possible causes of the lack of communication between the PC and the mobile device, going from checking the physical connection to complex manipulations with the Windows registry and Android system settings, so that you can return full functionality to your gadget.
Primary diagnosis of physical connection
The most common but often ignored reason is poor-quality cable. Many users use cheap cables that are designed solely for charging and have no data lines. If your smartphone is charging but your computer can't see it, try replacing the wire with an original or certified counterpart labeled Data Transfer.
It is also worth paying attention to the state of USB-The device often accumulates dust and pile in the pocket of the device, which prevents the contacts from contacting tightly. Carefully clean the connector with a wooden toothpick or compressed air, avoiding the use of metal objects so as not to close the contacts.
⚠️ Attention: If you are using USB-Hub or extension cord, try connecting the phone directly to the computer's motherboard. Cheap hubs often fail to provide enough voltage or transmit data signals correctly, leading to device detection failures.
It's not superfluous to check the ports on the computer itself. Connect another flash drive or mouse to the same connector. If the periphery is working properly, then the problem is located in the cable-phone bundle. Sometimes connecting to the ports on the back of the system unit helps, since they have more stable power than the front ones.
Configuring USB mode in the Android system
By default, the current versions of the MIUI shell and HyperOS switch to Charge Only when connected to a PC, so that security is not possible for attackers to access your data through public charging stations, and you need to manually switch this setting.
Once the cable is connected, unlock the smartphone screen and lower the notification curtain. There should be a USB connection message. Click on it and select File Transfer (MTP) or Photo Transfer (PTP) mode from the menu that appears. If the menu does not appear, go to Settings → About Phone → MIUI version and quickly press 7 times the build number to activate the developer menu.
- 🔌 Go to Settings. → Advanced settings → For developers.
- 🔍 Find the item "Configuration" USB by default and select MTP.
- 🔄 Check if the debugging is activated USB, if you plan to use ADB.
- 💾 Make sure that the "Only Charge" mode is turned off in the quick settings.
Switching between MTP and PTP modes sometimes helps. Although PTP is for cameras, in some cases Windows correctly detects the device through that protocol, after which the drivers start working for file sharing, which is especially true for older versions of Windows, such as 7 or 8.
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If the USB menu doesn’t pop up automatically, try connecting your phone to a computer that’s turned off, turning on your PC, waiting for Windows to boot, and only then unlocking your smartphone screen.
Installation and update of drivers in Windows
Windows may not have built-in drivers for specific Xiaomi models, especially if you use a rare modification or Chinese firmware version. In Device Manager, such hardware is often displayed as "Unknown Device" or "MTP USB Device" with a yellow exclamation mark.
To correct this, open Device Manager (click Win + X and select the appropriate option). Find your device, right-click and select "Update driver." Select "Follow driver search on this computer" → "Select driver from the list of available drivers."
| Type of device | Recommended driver | Where to find out. |
|---|---|---|
| Media Player (MTP) | Microsoft MTP USB Device | List of Windows |
| Debugging (ADB) | Google USB Driver / Universal ADB | Android Developer website |
| Network Adapter (RNDIS) | Remote NDIS based Internet Sharing | Device Manager |
| System device | Xiaomi USB Driver | Mi PC Suite / Official website |
If automatic search doesn’t work, download the official Mi PC Suite (or its modified versions for global markets) and automatically install all the necessary certificates and drivers for your model when installed, and use the universal Google USB Driver driver via the SDK Platform Tools.
☑️ Driver verification
Software conflicts and debugging settings
Sometimes the problem lies in the conflict of ADB protocol versions or MIUI security settings. Xiaomi security system can block the connection to unfamiliar computers. When you first connect with debugging enabled, a request for debugging permission will appear on the phone screen - be sure to click OK and select Always Allow from this computer.
Another reason may be the enabled USB Debugging (Security Settings) mode in the developer menu, which allows you to simulate clicks through ADB, but it requires you to log in to a Mi Account and can block a standard connection if the account is not authorized or Xiaomi servers are not available.
⚠️ Attention: Enabling the option"USB Debugging (Security Settings) gives you full access to the system. Do not activate it on other people's computers or in public places, as this reduces the level of security of your personal data.
Also worth checking is whether antivirus or firewall is blocking new devices from connecting. Try temporarily disabling third-party antivirus software and checking the connection. In rare cases, resetting USB settings in the developer menu helps: find the item "Reset USB settings" or "Revoke USB debugging authorizations" and click it.
Hidden MIUI settings
Hardware malfunctions and repairs
If software methods fail, there is a high probability of hardware failure, most often the bottom plume where the charging connector is located fails, oxidation of contacts after moisture hits or mechanical wear of the connector causes data lines to stop contacting, although the power lines continue to work.
A more serious problem is damage to the power controller or the south bridge on the motherboard, which can occur after using poor-quality chargers, power surges in the network or a strong impact when falling, in which case the phone may be charged with jerks or not charged at all.
- 🔍 Check the connector under the magnifying glass for bent contacts.
- 💧 Check the moisture indicators (LDI) inside SIM-tray.
- 🌡️ Pay attention to the heating of the bottom of the phone when connected.
- 🔋 Try connecting your phone to another PC or laptop.
Self-repairing the connector requires soldering skills and thermophene. If you don't have experience with microelectronics, you should contact a specialized service. Replacing the bottom plume is a relatively inexpensive procedure that often solves the problem.
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If the phone is only detected in a certain position of the cable, it is 99% indicative of physical wear of the connector or a break in the plume inside the case.
Specificity of macOS and Linux
Apple users are faced with the fact that macOS by default does not see Android devices as file storage. To organize communication, you need to install the official Android File Transfer application or its modern analogue OpenMTP. Without this software, the computer will only charge the phone.
Linux-based operating systems (Ubuntu, Fedora, Mint) are less likely to have problems because of the support they provide. MTP However, if the device is not identified, it may be necessary to install mtp-tools or jmtpfs. USB-device.
Linux users who work with debugging often require the creation of a udev rule file. You need to create a file /etc/udev/rules.d/51-android.rules and prescribe the Vendor ID of your device (usually 2717 for Xiaomi) so that the system allows connection without root rights.