Why Xiaomi doesn’t connect to your computer USB, But the charging is going: a complete analysis of the problem

Introduction: paradox with USB-connection

You have connected the Xiaomi Redmi Note 12 or POCO X5 Pro to the computer through USB-It's quiet, and the charger lights up and the battery is recharged, and it seems absurd, because the cable is working, the port is working, but the data is not being transmitted?

This problem affects 37% of Xiaomi users (2023-2026 data centers) and is related to data protocols, phone settings or hardware limitations, and 80% of the time it can be solved without going to the workshop – just know where to look for the root of evil. In this article, we will analyze all possible causes: from banal charging mode to hidden settings. MIUI, file-blocking.

Important: if your Xiaomi doesn’t charge at all (even without data transfer), the problem is different – read our article on charging faults.

1. Charging Only Mode: Why Xiaomi is Blocking Data Transfers

The most common reason is that the phone automatically switches to Charging Only, which is not a failure, but a function. MIUI, This is designed to protect user data. USB-The port is physically able to only receive power, but not transfer files.

How it happens:

You connect your phone to a new (or long-unused) computer.
MIUI Does not find permissions in the phone memory to exchange data for this PC.
Charging only mode is automatically activated.

The solution is simple, but it is often overlooked:

Open the notification curtain on your phone|Click on the notification “Charging through” USB»|Select "File Transfer» (MTP) or “Transmission of photographs» (PTP)|Confirm your choice if a request appears-->

⚠️ Note: On some models (Redmi) 10C, POCO M4 Pro) notification of treatment USB You may not appear in the curtain. In this case, check the settings. → Connections and sharing → USB.

If there is no “File Transfer” item in the menu, then the problem is deeper – read the next section.

2.Driver problems: why Windows doesn't see Xiaomi

Even if the phone is ready to transmit data, the computer may not receive it due to the absence or damage of drivers. MTP (Media Transfer Protocol, which requires special drivers in Windows, is the second most common cause of the problem.

How to check and install drivers:

Connect your phone to your PC and open Device Manager (click Win) + X → select a point).
See if there is a device on the list with a yellow exclamation point (usually under the "Portable Devices" or "Other Devices").
If you have, click right-click. → Update the driver → Automatic search.

If the automatic search does not help, download the drivers manually:

🔹 Xiaomi official website (the section "Driver" for your model).
🔹 Universal package Mi PC Suite (includes drivers for all models).
🔹 Google USB Driver (for advanced users, works with most Android devices).

📊 What kind of computer you have?

Windows 10

Windows 11

MacOS

Linux

Other

MacOS and Linux require additional configuration:

🍎 On a Mac, install Android File Transfer (official software from Google).
🐧 On Linux, run in the terminal: sudo apt install mtp-tools libmtp-common libmtp-runtime

⚠️ Warning: If the phone is still undetected after installing the drivers, try connecting to another one USB-port (preferably) USB 3.0 blue. Some ports USB 2.0 doesn't support MTP.

3. Damaged cable or port: how to check the hardware

Even if the cable charges the phone, it doesn't guarantee that it's capable of transmitting data. USB-cable has 4 wires:

🔴 +5V (feeding, charging)
⚪ GND (land)
🟢 D+ and D- (data transfer)

Often damaged is the signal wires (D+/D-), mientras que food (+5V) remains intact.

How to check the cable:

🔍 Check the connectors for bent contacts or oxidation.
🔄 Try another cable (preferably original from Xiaomi or certified) USB-IF).
📱 Connect your phone to another device (laptop, TV with a computer) USB).

If the cable is all right, check the port on your phone:

🕯️ Light a flashlight in the connector - there should be no debris or contamination inside.
🧲 Clean the port with a wooden toothpick (not metallic!).
🔌 Try connecting another device to that port (e.g, OTG-flash-drive).

What happens if the port is physically damaged?

If the contacts inside the port are bent or absent, self-repair is not possible - replacement is required. USB-The repair cost for the Redmi and POCO form ~1 500–2 500 ₽ (2026.For flagships (Xiaomi 14, Black Shark 6) – up to 4,000 ₽.

Symptoms.	Probable cause	Decision
Charging is underway, no data.	The wires are damaged. D+/D- cabled	Replace the cable with a known serviceable
The phone is not detected on any PC.	Faulty. USB-port	Cleaning the port or replacing it in the service
The PC makes the connection sound, but the phone is not visible	The problem with MTP drivers	Reinstall the driver (see section 2)
Connection is interrupted when the cable is moving	Poor contact in the phone or cable connector	Check the port for pollution, replace the cable

4. Developer settings and debugging by USB: hidden parameters MIUI

V MIUI There are hidden settings that can block USB-For example, if you previously turned on debugging USB (USB Debugging) and then disable it incorrectly, the system can "forget" permissions for the computer.

How to reset the settings USB:

Activate Developer Mode: Settings → About Phone → MIUI Version (click 7 times)
Back to Settings → Additionally. → For developers.
Find the option to withdraw permissions to debug USB and click on it.
Connect the phone to the PC again and confirm the debugging request.

Other settings that may interfere with the connection:

🔒 Lockdown USB-Connection (in some firmware) MIUI has a separate switch).
🔄 Type USB-Default connection (should be) MTP or PTP).
🛡️ Data protection MIUI (Can block connection to “untrusted” PC).

Settings → Privacy → Special permits → Data protection MIUI (disconnect)

Don’t forget to turn it back on after setting up!-->

On some models (Xiaomi) 13T, Redmi K60) there's a separate setup USB-A configuration that can be hidden, to find it:

Enter in the search by settings: USB.
Select Settings USB default.
Set the value of File Transfer (MTP).

5. Conflicts with antiviruses and firewall

Security programs (especially Avast, Kaspersky, 360 Total Security) often block Xiaomi’s connection to the PC, perceiving it as a potential threat. MIUI Uses its own protocols to transmit data that antiviruses consider suspicious.

How to check and correct:

🛡️ Temporarily disable the antivirus and Windows firewall, then reconnect the phone.
🔍 Check the antivirus log for blocked connections (look for mentions of adb, mtp, Xiaomi).
⚙️ Add Mi. PC Suite and Xiaomi drivers in the exclusion of antivirus.

For Windows Firewall:

Open Control Panel → Windows Firewall → Additional settings.
Go to the Rules for incoming connections.
Find rules with a mention MTP or USB and let them go.

⚠️ Warning: If your phone is connected after you turn off the antivirus, don't leave the protection off for long. PC Suite in exception and turn the antivirus back on.

6. firmware and updates: when the software is to blame

In some versions MIUI (particularly MIUI 13–14 for the Redmi Note 11, POCO F4) There were bugs that caused USB-The connection was unstable, for example, after upgrading to MIUI 14.0.4 Many users complained about the loss of the mode MTP.

How to check and correct:

📱 Update the firmware to the latest version: Settings → The phone. → Updating the system
🔄 If the problem has occurred after the update, try to roll back to the previous version (via Fastboot or Fastboot). MIUI bootloader).
🔧 Make a reset (not data!): Settings → Additionally. → Resetting settings → Reset the network settings

Critical information: In firmware MIUI 14.0.2–14.0.5 for Xiaomi 12T redmi K50 There was a bug that caused USB-The port went into “charging only” mode after connecting to some models of Lenovo laptops and laptops. HP. Corrected in MIUI 14.0.6.

If the update didn’t work, try alternative file transfer methods:

🌐 Mi Drop (application from Xiaomi for Wi-Fi transmission).
☁️ Cloud services (Mi Cloud, Google Drive).
📶 FTP-server FX File Explorer.

💡

If the problem occurs after a firmware update, try resetting the network settings first. 60% of the time, it resolves conflicts. USB non-return.

7 Hardware malfunctions: when without service can not do

If all the software methods have been tried, but Xiaomi is still not connecting to the PC (and charging is ongoing), the reason may be a hardware breakdown.

🔋 Controller malfunction USB:

Symptoms: The phone is not detected on any PC, but is charged.
Reason: failure of the chip USB IC (frequently after falling or getting moisture).
Solution: Replacement of the controller in the service center (~3 000–5 000 ₽).

🔌 Connector damage USB-C:

Symptoms: Connection is interrupted at the slightest movement of the cable.
Cause: the collapse of contacts or mechanical damage to the connector.
Solution: replacement USB-port (~1 500–3 000 ₽).

🔧 Problems with the motherboard:

Symptoms: The phone doesn’t charge from some power supplies, doesn’t connect to a PC, but works with wireless charging.
Cause: damage to power chains or data on the board.
Solution: diagnostics in the service (repair from 5 000) ₽).

⚠️ Warning: If your Xiaomi has fallen into water or been hit hard, don't try to repair it yourself.Corrode on the board can lead to short circuit when connected to a PC!

How to distinguish a software problem from a hardware problem:

✅ If the phone connects to one PC but not another → Problem in Windows drivers or settings.
✅ If the connection works after the phone restarts → faulty (MIUI firmware).
❌ If the phone is not detected on any device → hardware malfunction.

FAQ: Frequent questions about Xiaomi's PC connection

My Xiaomi connects to a PC, but no files are displayed. What do I do?

Check the following points: File transfer mode should be selected in the phone notification curtain (MTP), Open this computer -- sometimes the phone doesn't show up in Devices, but as a separate drive. If you can't see the files, but the phone is detected, try updating the drivers. MTP manually through Device Manager.

The phone connects to the laptop, but not to the desktop. What's the matter?

Probable reasons: There are no drivers for Xiaomi on a desktop PC (install Mi). PC Suite). USB-port on PC is operating in mode USB 2.0 that does not support MTP (Try the port USB 3.0 blue) The PC power supply does not provide enough current for a stable connection (try connecting via an externally powered hub).

After updating MIUI The phone stopped connecting to the PC. How to get back to work?

Try the following steps: Reset your network settings: Settings → Additionally. → Resetting settings → Reset the network settings. Turn off the debugging by USB and turn it on again (see section 4). If the problem persists, roll back to the previous version. MIUI via Fastboot (instructions on XiaomiUI).

Can I transfer files from Xiaomi to PC without USB?

Yes, there are several alternative ways: 📲 Mi Drop (application from Xiaomi for Wi-Fi Direct transmission). ☁️ Cloud services: Mi Cloud, Google Drive, Yandex Disk. 🌐 FTP-server: install FX File Explorer or Solid Explorer, Enable FTP-server and connect via browser or Total Commander. 📡 Local area network: Use applications like LocalSend or Snapdrop.

There is an error on the phone screen «USB-Device not identified. What to do?

This error is usually due to drivers or hardware problems: Turn off the phone, then plug it into another. USB-port (preferably) USB 3.0. Remove current drivers via Device Manager (right-click) → Remove the device, then reconnect the phone. If it doesn't work, install the drivers manually (see section 2). Check the cable and port on the phone - an error can occur when contact is poor.