Xiaomi Redmi Connection 4X computer-to-computer USB: Complete guidance with error solutions

Xiaomi Redmi 4X — One of the most popular budget smartphones of the brand, but its connection to the PC through USB-The cable often raises questions from users, so that the device is defined as "unidentified", the computer does not see files, the phone simply charges without data transfer. 4X Windows 10/11, macOS and Linux, and solve typical problems with drivers, modes USB and settings MIUI.

Feature of the Redmi model 4X (codename santoni - in its firmware MIUI, which by default blocks some of the USB-Security features. In addition, many users face the lack of drivers ADB or MTP, What's stopping us from sharing data correctly:

• 🔌 How to physically connect your phone to your PC and choose the right mode USB
• 🖥️ Install drivers for Windows (including manual method through Device Manager)
• 📱 Settings MIUI, What is interfering with the connection, and how to disconnect them
• ⚠️ Common errors (e.g., common errors, «USB-Device not identified”) and their solutions

If you're trying to copy photos, flash your phone through a Fastboot, or just charge your battery, this will help you set up your connection in 5-10 minutes.

1.Preparation for connection: cable, port and modes USB

Before we connect Redmi 4X With your computer, check out three key points:

1. Cable USB. Use the original Xiaomi cable or certified cable USB Type-C (for Redmi) 4X — Micro-USB: Cheap cables often only support charging, not data transfer.
2. Port port USB Get on the PC, connect to the port. USB 2.0 (black connector) - it works more stable with the MTP. Ports USB 3.0 (blue) can cause errors.
3. Regime. USB It's on the phone. Redmi's default. 4X It's called Charging Only, and you have to change it manually.

To select the data transfer mode:

1. Connect the phone to the PC.
2. Swipe down the notification bar on Redmi 4X.
3. Tap on the notification “Charging via USB”.
4. Select a mode: 📁 File transfer (MTP) — phone-memory. 📷 Transmission of photographs (PTP) — if MTP doesn't work. 🔧 USB-modem - for distribution of the Internet (not necessary for file sharing).

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If the notification “Charging through” USB» If it doesn't show up, check if the developer mode is on, sometimes it blocks the standard options. USB.

Important: on some firmware MIUI The file transfer item may be called the media device (MTP)» Or hide behind an extra menu, and if you don't have that notification at all, go to the developer settings section.

Installation of drivers for Windows: automatic and manual methods

If the computer does not recognize Redmi 4X or make a mistake «USB-I don't know, the problem is that there are no drivers. Let's look at two ways to install them.

Method 1: Automatic installation via Mi PC Suite

The official Xiaomi utility automatically installs the necessary drivers:

1. Download Mi PC Suite from the official website.
2. Install the program by following the instructions.
3. Get Redmi on board. 4X PC and run Mi. PC Suite.
4. Wait until the utility determines the device and installs the drivers.

Method 2: Manual installation through Device Manager

If the automatic method does not work:

1. Open Device Manager (click Win + X → select option).
2. Find “Other Devices”** or “Xiaomi” with a yellow exclamation point.

Open Device Manager|Find Xiaomi Redmi 4X faultless|Make sure the regime MTP/PTP included|Restart your PC and phone-->

Windows 7 users may need an additional Media Feature Pack, as MTP not supported by default.

3. Settings MIUI, blocker USB-connection

Firmware MIUI (Especially versions 8-12, it has several "hidden" features that interfere with the connection to the PC.

Shutdown USB-debugging (if not necessary)

If you have previously included a developer mode, USB-debugging may conflict with MTP:

1. Go to Settings. → The phone.
2. Tap 7 times on the MIUI version to activate the developer mode.
3. Back to Settings → Additionally. → For developers.
4. Find it «USB-Debugging and disabling it (if not used) ADB).

Resetting USB settings

Sometimes. MIUI «forgets the connection settings. To reset them:

1. Open the settings → Additional → for developers.
2. Find the item "Revocation of permission" USB-slap it and put it on it.
3. Connect your phone to your PC again and select the mode MTP/PTP.

Also check if the “Blocking” function is enabled. USB-Connection in Security Settings (Settings) → Password and security → Lockdown USB). If so, turn it off.

4 Problem Solving: The computer doesn't see Redmi 4X

If after all the manipulations the PC still does not recognize the phone, use this diagnostic table:

If the problem persists, try alternative file transfer methods:

• 🌐 Wi-Fi Transfer: Use apps like Mi Drop or Send Anywhere for wireless transmission.
• ☁️ Cloud Storage: Upload files to Mi Cloud, Google Drive or Yandex.Disk.
• 🔌 Memory card: Remove the MicroSD from your phone and connect it to your PC via a card reader.

5.Redmi's connection 4X macOS and Linux

On Mac and Linux, Redmi Connection 4X It is usually easier, but there are nuances.

For macOS:

The system automatically recognizes the phone in mode MTP/PTP, You may need to install Android File Transfer:

1. Download the Android File Transfer.
2. Get Redmi on board. 4X and select the "File Transfer" mode».
3. Run the program - it will display the file system of the phone.

For Linux (Ubuntu, Mint, etc.):

Most distributions support MTP «Out of the box, but sometimes you need extra packages:

sudo apt install mtp-tools libmtp-common gvfs-mtp

After installation:

1. Connect the phone in MTP mode.
2. Open a file manager (such as Nautilus or Dolphin).
3. In the side menu will appear the Redmi device 4X.

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On Linux, avoid using the mode PTP — It's often unstable. MTP Or mount the memory card directly.

6. Firmware connection (Fastboot/ADB)

If you are planning to use Redmi 4X via Fastboot or ADB, You'll need a special setup:

1. Enable the Developer Mode (as in Section 3).
2. Activate. USB-debugging (Settings) → Additionally. → For developers).
3. Connect your phone to your PC and select File Transfer Mode (despite needing firmware, MTP must be enabled for initial recognition).
4. Open the command line and check the connection: adb devices If the device is displayed, the drivers are installed correctly.

To work with Fastboot:

1. Turn off the phone.
2. Press Volume Down + Power to enter Fastboot.
3. Get Redmi on board. 4X The name of the device is Android Bootloader Interface».
4. Check the connection with the command: fastboot devices

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If the adb device command returns an empty list, try reinstalling Google drivers. USB Driver from Android SDK.

7. Frequent errors and their solutions

Even after you've set it up properly, you can have failures. Let's look at the most common ones.

Mistake: «USB-device not identified" (code 43)

Reasons:

• 🔌 Faulty cable or port.
• 🖥️ Driver conflict (for example, if another Xiaomi phone has previously connected).
• 📱 Firmware failure MIUI.

Decisions:

1. Try another cable and port.
2. Remove all Xiaomi devices in Device Manager and reconnect the phone.
3. Update MIUI to the latest version (Settings → System Update).

Error: Phone is connected, but files are not displayed

Possible causes:

• 📁 Regime. MTP It is enabled, but Windows does not support it correctly.
• 🔒 Phone's file system damaged.
• 🛡️ Antivirus blocking access (for example, Avast or Kaspersky).

Decisions:

1. Switch to mode. PTP (photo).
2. Disable the antivirus during the connection.
3. Check your phone for viruses with Mi Security.

⚠️ Note: If you connect to Redmi PC 4X It starts to warm up a lot, which is a sign of a faulty cable or port.

8. Alternative methods of data exchange

If USB-The connection has not worked, use alternative methods:

To transfer files over Wi-Fi:

1. Install Mi Drop on the phone (pre-installed in the MIUI) Send Anywhere.
2. Open the application and select the files to send.
3. On PC, open the web version of the service (e.g. send-anywhere.com) and enter the pairing code.

⚠️ Note: When using public Wi-Fi networks (cafes, airports) to transfer files, turn on VPN Or encryption in the application settings, which will protect the data from interception.

FAQ: Answers to Frequent Questions