How to connect the Internet to your computer via a cable from the phone Xiaomi Redmi 9: full instruction

Connecting your computer to the Internet via Xiaomi Redmi 9 smartphone USB-Cables are a convenient way to get online when you don't have Wi-Fi or Ethernet on hand. USB-Tetering allows you to use mobile phone traffic on your PC, but users often have difficulties: the phone is not defined as a modem, drivers are not installed, or the connection is constantly broken.

In this article, we will analyze all the stages of configuration - from turning on modem modem on Redmi. 9 before installing drivers on Windows 7/10/11. We will pay special attention to the common problem with the lack of options "USB-Modem in Xiaomi settings and how to solve it, and you will find a table of compatibility with different versions of Windows and answers to frequent questions on connection speed and security.

1. Preparation of the Xiaomi Redmi 9 phone for the distribution of the Internet

Before connecting to a PC, you need to activate several key functions on your smartphone, without which the computer will not be able to recognize the device as a source of the Internet.

First thing you do is check:

• 📶 Mobile Internet – Make sure you are on Redmi 9 Mobile traffic enabled (image icon) 4G/LTE If the signal is weak, try switching to another network in Settings. → SIM-maps and mobile networks → Choice of network.
• 🔌 Debugging by USB — This mode is required for the drivers to work correctly. Activate it in Settings. → The phone. → Version. MIUI (Click 7 times to become a developer, then go back to Settings → Additionally. → For developers → Debugging by USB.
• 🔒 Unlocking OEM — In the same menu for developers, enable the option Unlock OEM. This will help to avoid errors with drivers on PC.

If you are using Redmi 9 with two SIM-maps, make sure that mobile data is included on the SIM, It's a card that supports Internet transmission (usually the main card), check the balance, some operators block tethering when the score is negative.

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If you're an option "USB-Modem is not in the settings, try to update MIUI until the latest version or reset network settings in Settings → SIM-maps and mobile networks → Resetting network settings.

Inclusion USB-Tetering on Xiaomi Redmi 9

Now, let's get to the main stage, which is activating modem modem. On Redmi 9, this is done through the Access Point and Modem menu, but there are nuances:

1. Connect your phone to your PC using the original USB-cable (preferably from the kit) cheap cables may not support data transmission.
2. The phone will have a USB connection message in the notification bar, and click on it and select File Transfer (MTP) mode, which is temporary, and we'll change it to a modem later.
3. Open the Settings. → Access Point and modem.
4. Activate the switch. USB-If not, see the "Problem Solving" section below.

After turning on the phone screen will appear notification USB-Tetering is on, and in the Windows tray, the network connection icon. If the indicator shows "No Internet access", go to the driver configuration (section 3).

Selected the correct USB mode (not “charging”)

Mobile Internet on the phone is enabled

Xiaomi drivers installed on PC (if previously connected)

Disabled. VPN/computer proxy-->

3. Set up a computer to receive the Internet

Most often, connection problems arise from the absence of drivers or incorrect network settings of Windows, let's look at both cases.

Installation of drivers for Xiaomi Redmi 9

Windows 10/11 Usually, drivers are automatically installed for USB-tetering, but sometimes manual installation is required:

1. Download the official drivers from the Xiaomi website (section "PC Suite").
2. Connect your phone to your PC and open Device Manager (click Win + X).
3. Find the Ports on the list (COM and LPT) or Network adapters (exclamation marker device (usually Remote) NDIS based Internet Sharing Device).
4. Right-click → Update the driver → Search for drivers on this computer and specify the path to the downloaded file.

Network connection setting

If the driver is installed, but the Internet is not working:

1. Open the Control Panel → Network and Internet → Network Management Center.
2. Find an Ethernet or Remote NDIS connection (may be called Network 2).
3. Click on it → Properties → IPv4 Protocol.
4. Make sure you choose to receive IP-address.

If the Internet is not working after these actions, try to disable the Windows firewall or antivirus temporarily - they can block the connection.

Windows 10

Windows 11

Windows 7 or older

Linux/macOS

I don't know.-->

4. Solving common problems

Even with the right setup, Redmi 9 users are faced with typical bugs. We've put together solutions for the most frequent cases.

⚠️ Note: If you are using Redmi 9 with custom firmware (not official) MIUI), USB-Tethering may not work due to the lack of necessary core modules, in which case only flashing to the official version will help.

For users who do not have an option "USB-"modem" on the menu, there is a workaround through ADB-team:

adb shell


settings put global tether_dun_required 0




setprop sys.usb.config rndis,adb

These commands will temporarily activate modem mode, and after the phone restarts, you'll have to repeat the procedure.

5. Speed and safety optimization

USB-tetering through Redmi 9 usually gives speed to 50-70 Mbit/s (depending on operator and coverage) 4G). To improve the indicators:

• 📡 Switch the network to Only LTE In Settings → SIM-map → Preferred type of network.
• 🔋 Disable background apps on your phone that consume traffic (updates, cloud syncs).
• 🛡️ Use it. VPN on a PC if the operator limits the tetering speed (for example, Tele2 has such a restriction).

For safety:

• 🔐 Set a password to the access point (if you use Wi-Fi tethering at the same time).
• 📵 Turn it off. USB-A modem when it is not needed will reduce the risk of data leaks through vulnerabilities in the protocol RNDIS.
• 🛑 Check if the operator blocks tethering (some tariffs have it paid), for example, MegaFon tetering is enabled by default, and Yota may require an additional option.

6. Alternative ways to distribute the Internet with Redmi 9

If USB-Tethering is not working or not satisfied with speed, consider other options:

Wi-Fi access point

More versatile, but consumes the phone's battery faster. Included in Settings → Access Point and modem → Wi-Fi Access Point. Minus is a limit on the number of connected devices (usually up to 8).

Bluetooth tetering

Suitable for saving charge, but the speed rarely exceeds 10 Mbit / s. → Devices → Bluetooth tetering. Plus, it works even if it's not. USB-phone port damaged.

Reverse tethering (reverse tethering)

If you want to connect Redmi 9 to the Internet from your computer (for example, to update your firmware), use the ReverseTethering NoRoot program from the Play Market. ADB.

Comparison of methods by key parameters:

Frequent questions on USB-Tethering on Xiaomi Redmi 9

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USB-Tetering via Xiaomi Redmi 9 is the most stable and economical way to distribute the Internet, but requires the correct setting of drivers and APN. If speed is critical, combine with a Wi-Fi hotspot or use an external one. 4G-telephone-tenant.