How to connect Xiaomi Redmi 4X to your computer via USB: all ways and solutions to problems

Why Xiaomi Redmi 4X is not connected to your computer and how to fix it

Xiaomi Redmi 4X (codenamed santoni) is still popular with users due to its balance of price and functionality, but when you first connect to a PC via USB, many people face problems: the computer does not see the phone, gives a driver error or only offers charging without transferring files. 80% of the time, the reason lies in the wrong USB mode or the absence of Mi PC Suite drivers.

In this article, we will discuss all possible ways of connecting - from the basic settings. MTP-mode to manual installation of drivers for Windows 7/10/11. You will also learn how to avoid common errors like “Device” USB "unidentifiable" or "MTP-device not installed, which often occur when working with budget smartphones Xiaomi.

The Redmi 4X is a feature of Qualcomm Snapdragon 435 processor, which affects compatibility with some versions of drivers. If you have already tried to connect and got an error, do not rush to blame the cable: in 60% of cases, the problem is solved by changing the data protocol directly on the phone.

1.Phone Preparation: Enable File Transfer Mode

Before you connect Redmi 4X to a PC, you need to activate file transfer mode (MTP) on the smartphone itself. By default, the phone can only be configured to charge, which blocks access to memory.

Follow the instructions:

1. Get Redmi on board. 4X to the computer using the original USB-cable (or certified cable) USB 2.0 Type-C).
2. Unlock the phone screen – without this, mode choices will not be available.
3. In the “USB for...” notification, tap it.
4. Select "File Transfer" (MTP) if this option is not available, then the phone has disabled debugging over USB (see section 3).

⚠️ Attention: If after the selection MTP The computer still can not see the phone, check if the PC is installed drivers for Mediatek – they conflict with the chipset Qualcomm in Redmi 4X. Remove them through Device Manager.

Make sure the cable is good and supports data transmission.

Unlock the phone screen

Check that USB-The computer port is working (plug in the flash drive)

Turn off the "Charge Only" mode in the phone settings-->

2. Computer setup: install drivers for Xiaomi Redmi 4X

If the phone is identified as an "Unknown device" or if it is an error "MTP-device not installed", you need to manually install the drivers. 4X two-way:

• 📥 Official drivers from Xiaomi – download Mi PC Suite (version 3.2.1 or later) The program will automatically install the desired drivers when you first connect.
• 🔧 Qualcomm Universal Drivers – if Mi PC Suite does not help, download QDLoader HS-USB Driver (needed for firmware, but also solves problems with the MTP).
• 🖥️ Manual installation via Device Manager – suitable for Windows 7, where automatic installation often fails.

For manual installation:

1. Open Device Manager (Win + X → Device Manager).
2. Find in the list "Other devices" → "Redmi 4X" (may be displayed as "ADB Interface or "MTP").
3. Right-click → “Update driver” → “Research drivers on this computer”.
4. Select "Select driver from the list" → "MTP-device" (or "ADB Composite" if you need access to debugging).

⚠️ Warning: On Windows 7, be sure to install the update before installing drivers KB3010081 — Without it, the system does not support MTP new devices.

3. enable debugging over USB (for advanced users)

If you plan not only to transfer files, but also to use them ADB-commands (for example, for firmware or backup), you need to turn on the developer mode and debugging on USB.

Instructions:

1. Go to Settings. → The phone.
2. Tap 7 times on the MIUI version until the notification “You are a developer!” appears.
3. Back to Settings → Additionally. → For developers.
4. Activate the switches: 🔄 "Debugging by USB" 🔒 "Unlocking OEM" (firmware) 📶 "Debugging by USB (security)"

Connect the phone to the PC and confirm the debugging permission on the smartphone screen.

After that, the device "Android ADB Interface" should appear in Device Manager. If it is not available, install the Android SDK Platform-Tools.

💡

If after debugging, your phone is no longer defined as a drive, go back to Settings → Additional → For Developers and turn off the "Cancel USB Debugging Authorization" option.

4. Solving typical connection problems

Even after you set it up correctly, you can still get errors, and the table below shows the most common problems and solutions.

⚠️ Note: If after all the manipulations the phone is still not determined, try to connect through the mode PTP (Sometimes it helps to bypass the lock. MTP Windows-side.

5. Alternative ways to transfer files without USB

If connection via cable is impossible (for example, a broken connector), use wireless methods:

• 🌐 Mi Drop is a built-in application from Xiaomi for transferring files over Wi-Fi. speed up to 20 MB / s.
• ☁️ Cloud Services – Upload files to Mi Cloud, Google Drive or Yandex Disk, then download to PC.
• 📡 FTP-server – use applications such as FX File Explorer or Solid Explorer to create local FTP-server.
• 🔗 AirDroid – allows you to control your phone through a browser (there is a limit on the amount of data in the free version).

When transferring large files (video, backups) over Wi-Fi, use a 5 GHz network - this will speed up the process by 2-3 times compared to 2.4 GHz.

6. Checking the performance USB-port-and-cable

If none of these methods worked, the problem could be a physical fault in the cable or port.

1. Cable test: Connect your phone to another PC or charger. Try another cable (preferably the original Xiaomi with the 5V/2A marking). Check the USB-C connector on your phone for any contamination or bent contacts.

Test USB-port:

• Connect to the port another device (flash drive, mouse).
• Try another port (preferably USB 2.0, as USB 3.0 sometimes conflicts with MTP).
• Check Device Manager for exclamation points near the USB Controllers.