Despite its age, the Xiaomi Redmi 4X remains a popular device due to its reliability and maintainability. However, users often have difficulty connecting it to a personal computer for data transfer or debugging. Proper connectivity is necessary not only for copying photos and music, but also for flashing the device via Fastboot or ADB.
In this article, we will discuss all the nuances of the Redmi connection. 4X With a PC running Windows, macOS or Linux, you will learn how to choose the right mode of operation. USB-The port where to find the drivers and what to do if the computer just can't see the phone.
Sometimes the problem is a trivial thing that's easy to overlook, like a cable that's designed to be charging only and has no data lines, and we'll look at these situations and propose specific solutions for each scenario.
Choosing a quality cable and checking ports
The first step to a successful connection is to physically check the hardware. Often users take the first wire they get, forgetting that many of the cables that come with cheap accessories are charging and lack internal veins for data transfer. For the Redmi 4X, which uses a Micro-USB connector, this is especially true.
In budget models like the Xiaomi Redmi 4X, the Micro-USB connector will loosen over time, and contact may disappear with the slightest movement. If the cable wobbles or the charging is jerky, you may need to replace the socket or use a thicker cable to tightly lock.
- 🔌 Use the original cable from the kit or certified analogue with the marking (data transfer).
- 💻 Connect the device directly to the motherboard ports (behind the system unit), avoiding front panels and USB-hub.
- 🔍 Check the Micro-USB port for dust, pile and contact oxidation.
- 🔄 Try flipping the Micro-USB plug, as the contacts may have oxidized on one side.
⚠️ Attention: If you are using USB-Extension or cheap hub without its own power, voltage may not be enough to correctly determine the device by the system.
Wire quality directly affects file transfer speeds. Older cables can limit the speed of the USB 2.0 interface, which makes it unnecessary to copy large amounts of data. To work with ADB, connection stability is critical, since a communication break can interrupt the debugging process.
Configure USB mode in MIUI
Once the cable is physically connected, the MIUI-enclosed Android operating system defaults to Charge Only mode, and this is done for security reasons to prevent unauthorized data access when connecting to public charging stations. You need to manually switch mode.
Lower the notification curtain down. You will see the message "Charge through" USB-Port" (or similar). Click on it to open the mode selection menu. Here you will need to select the option "Send files (MTP) for working with memory or transfer of photos (PTP), if MTP doesn't work.
Why does PTP sometimes work better than MTP?
In some versions of MIUI, the mode selection menu may not appear automatically, so you need to go to the developer settings. The path to them is usually hidden: open Settings → About phone and quickly click on the MIUI build number seven times. Once you have the message “You became a developer”, a new item will appear in the settings menu.
- 📱 Go to Settings. → Advanced settings → For developers.
- 🔍 Find the "Configuration" section USB default».
- ⚙️ Select "File Transfer (MTP)» as a primary action.
- 🔒 Make sure the option is available «USB-Debugging is still off unless you plan to use it ADB.
This setting eliminates the need to manually switch modes every time, but remember that different tasks (charging, debugging, transferring photos) may require different configurations.
Installation of ADB and Fastboot drivers
To work fully with Xiaomi Redmi 4X, especially if you plan to unlock the bootloader or install custom firmware, special drivers are needed. Standard Windows tools often cannot automatically find the right software for Xiaomi devices in Fastboot or ADB mode.
There is a universal package Xiaomi USB Driver, which contains all the necessary components, it can be found on the official forum MIUI or in the repositories GitHub. After downloading the archive, it must unpack and run the installer on behalf of the administrator. During the installation process, the system will request confirmation to install drivers for Android Bootloader Interface and Android Composite ADB Interface.
⚠️ Note: When installing drivers in Windows 10/11 The system may block the installation due to the lack of a digital signature, in which case you need to temporarily disable the driver signature verification through the Windows boot menu.
If the automatic installation didn't work, you can use Device Manager. Connect your phone in Fastboot mode (clamping Volume Down + Power When the phone is off). An unknown device will appear in the Manager. Right-click, select Update Driver → Search for drivers on this computer, and point the way to the folder with the Xiaomi drivers unpacked.
☑️ Verification of driver installation
Successful driver installation is the foundation for any advanced smartphone experience, and without it, the computer will only charge the device while ignoring control commands.
Activation. USB-Debugging for Advanced Users
Regime. USB-debugging (USB Debugging allows your computer to have full access to Android to perform debugging commands, which is a must for app developers and installers. TWRP or receiving Root rights.
To activate this feature, go back to the Developer Menu. Find the USB Debugging option and switch the switch to the active position. The system will alert you to security risks — confirm the action. When you first connect to a new computer, a request will appear on the smartphone screen to confirm debugging from this PC. Be sure to check the box "Always Allow" and click OK.
| Parameter | MTP mode | ADB mode | Fastboot mode |
|---|---|---|---|
| Purpose of use | Copying files | Debugging, screenshots, teams | Firmware, unlock. |
| Screen status | On or off. | Included | Off (black screen) |
| Button combination | Not required | Not required | Volume Down + Nutrition |
| Windows Driver | MTP USB Device | Android Composite ADB | Android Bootloader |
Using debugging is a great opportunity, but it requires caution: Do not connect your phone to other people's computers with debugging enabled, as this gives access to your data. For everyday file use, this feature is better kept off.
Solving problems with device definition
The situation when the computer does not see the Xiaomi Redmi 4X is one of the most common. If you have tried cables and ports, but there is no result, the problem can be a conflict of software components, often interfered with installed software like 360 Total Security or older versions of the Mi PC Suite, which intercept control of USB.
Try to remove any software related to smartphone management (except official drivers) and restart your computer. It is also worth checking the Windows Update service. Sometimes Windows finds and installs the wrong driver itself, which you need to replace manually through Device Manager, selecting the driver from the list of already installed (for example, the standard Google USB Driver).
Another cause could be damage to the file system on the phone itself, where if the smartphone starts to warm up a lot or hangs on the MI logo, the /data partition or system files may be damaged, in which case connecting to the PC may not be possible without resetting or flashing.
- 🛠️ Try to install Minimal. ADB Fastboot is a lightweight toolkit that often resolves version conflicts.
- 🔄 Reboot both devices: both smartphone and computer.
- 🚫 Disable the antivirus and firewall during the connection.
- 🔋 Make sure your phone battery is above 20% or your data modes may not be activated.
⚠️ Note: If the device is defined as an “Unknown Device” with an error code of 43, this often indicates physical damage to the power controller or USB-port, not software failure.
Diagnostics have to go from simple to complex: first the cable, then the drivers, and then the deep analysis of the system, and in most cases the problem is solved by replacing the wire or manually installing the drivers.
Use of alternative methods of transmission
If you have not been able to establish a wired connection, or only need it occasionally, it is worth considering wireless alternatives. For Redmi 4X, which supports 802.11 n Wi-Fi standards, the transfer speed may be quite sufficient for most tasks.
One of the most effective ways to use the protocol FTP wired MIUI. Open the Explorer app, go to category, and select Remote Management. Run the server, and you get the view address. ftp://192.168.1.XX:XXXX. By entering this address in the address bar of “My Computer” in Windows, you will get full access to the file system without wires.
💡
Use the Mi Drop app (now Xiaomi Share) to quickly transfer large files between your phone and PC over Wi-Fi Direct.It works faster and more stable than Bluetooth, and doesn't require network setup.
Also, don't forget cloud services, because syncing with Google Photos or Yandex.Disk allows you to automatically upload images as soon as they're created, and it eliminates the need to connect the cable regularly for a couple of photos.
But for system recovery, deep memory cleaning, or firmware, wireless methods are powerless. It's critical to have at least one emergency cable in Recovery or Fastboot mode, and without that, you run the risk of turning your smartphone into a brick in any serious software error.