How to turn on USB modem on Xiaomi Mi 9T: step-by-step configuration

Xiaomi Mi 9T has a powerful processor and advanced communication modules that allow it to be used not only as a device for calls, but also as a full-fledged router. In situations where the Wi-Fi router is not available and mobile Internet on the computer is not available, the function of distributing traffic becomes critical. Many users mistakenly believe that the only way is Bluetooth or Wi-Fi hotspot, but the wired connection is often much more stable and faster.

The USB modem on the Xiaomi Mi 9T allows you to broadcast mobile Internet to a computer, laptop or even another phone via a physical cable. This solution is especially important for desktop PCs that do not have Wi-Fi adapters, or in conditions of severe radio interference when the wireless signal is unstable. In addition, the wired connection provides less latency (ping) and protects the smartphone battery from rapid discharge, as it charges while working.

The MIUI shell configuration process is simple enough, but requires understanding the sequence of actions. Xiaomi Mi 9T owners need to know where to look for the right switches, since they are hidden in the additional features menu. In this article, we will discuss in detail all the activation stages, possible driver problems and the finer points of configuration for maximum network performance.

Advantages of wired connection over Wi-Fi distribution

The USB modem on the Xiaomi Mi 9T has a number of undeniable advantages over wireless distribution. First, the data transfer speed during a wired connection is often higher, since there is no packet loss due to radio interference. The cable provides a stable communication channel, which is critical for video conferencing, online games or downloading large files. The wireless signal is affected by microwave ovens, neighboring routers and even walls.

Second, energy efficiency is an important factor. When operating in Wi-Fi access point mode, Xiaomi Mi smartphone 9T It gets very hot and loses battery power very quickly. USB-The modem gets power from the computer, which allows you to work for hours without recharging. This prolongs the battery life, minimizing the number of charge-discharge cycles.

The third aspect is security. The wired connection is physically limited, you can't connect to it remotely, unlike the Wi-Fi network, which is theoretically hackable. USB-The cable eliminates the risk of intruders intercepting data in public places, making it ideal for handling sensitive information on unsecured computers.

  • 🚀 Maximum stability of connection without ping jumps.
  • 🔋 Simultaneous charging of a smartphone during the distribution of the Internet.
  • 🛡️ High level of protection of transmitted data.
  • ⚡ No delays typical of wireless protocols.
📊 What Internet Distribution Method Do You Use Most Often?
Wi-Fi hotspot:Bluetooth modem:USB modem:I don't use handouts

⚠️ Attention: Not all USB-cables support data transfer. To run the modem on Xiaomi Mi 9T Be sure to use the original cable or quality analogue with support for data transfer, not just charging.

Requirements and equipment preparation

Before you activate the modem function, you need to make sure that all components are available. 9T fit USB-The port must be clean, free of oxidation and dust, which can prevent the tight contact of contacts. SIM-card with an active tariff plan and mobile data transfer enabled.

A computer or laptop that receives the Internet must have a serviceable USB-It is advisable to connect the device directly to the motherboard (back of the system unit), and not through the motherboard. USB-PCs (Windows, macOS, Linux) usually automatically recognize the device as a network adapter.

It is important to check the firmware version MIUI. In older versions of the shell, the menu could be called differently or located elsewhere. 9T current versions based on Android 10 and 11. Make sure the phone is not on flight mode and the icon is on. 4G/LTE or 5G.

  • 📱 Smartphone Xiaomi Mi 9T battery-charged.
  • 🔌 Quality USB-Type-C cable (original preferred).
  • 💻 Computer with serviceable USB-port Windows/macOS/Linux.
  • 📶 Active. SIM-map with mobile internet enabled.

☑️ Checking connection readiness

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⚠️ Note: If you are running Windows 7 or older versions, additional drivers may be required to run the modem that are not automatically installed.

Step-by-step instructions for activating USB modem

The process of turning on the modem on the Xiaomi Mi 9T takes less than a minute, if you know the exact path in the menu. First connect the smartphone to the computer using a cable. The phone screen should, and the notification of the charging mode will appear. Don't pay attention to this yet, we need to go to the system settings.

Open the Settings menu and find the Connect and Sharing section. In some versions of MIUI, this item may be simply called Additional Features and be located in the main settings menu or in the System sub-item, and this is where all the tools for working with network interfaces are hidden.

In the list that opens, find a USB modem switch. Activate it by moving the slider to the right. The system can warn you that your current Wi-Fi connection is broken, you'll agree, because your phone can't simultaneously accept Wi-Fi and distribute mobile Internet via USB. A computer in a tray (Windows) or status bar (macOS) should have a notification about the new network connection.

Path to the menu: Settings → Connection and Sharing → USB modem

If the switch is inactive (grey), check if the cable is connected and if the mobile data is on. SIM-The modem function will not start. Also make sure the computer sees the device - you may need to allow access to data on the phone screen if the corresponding window appears.

What to do if the USB modem is not available?
If you don't find a point USB modem on the menu, try updating the firmware MIUI In rare cases, on custom firmware, this feature can be removed or moved to the For Developers section: Configure network settings on your computer After activating the function on Xiaomi Mi 9T, The operating system of the computer must automatically install the necessary drivers. In Windows, this usually happens silently (without user participation). In the Device Manager section, a new device will appear, often called Network Adapters"RNDIS/Ethernet Gadget or "Remote" NDIS Internet-based Sharing Device. If the Internet does not appear automatically, check your settings IP-In most cases, it is sufficient to leave the receipt of the address automatically (DHCP). If there are conflicts, you can write a static IP. To do this, go to the Control Panel. → Network and Internet → Network Control Center. Select active connection, press Properties, find IP version 4 (TCP/IPv4) and select Use the following IP-Enter the data if required by your corporate network or provider, but for home use, the automatic settings are optimal. IP Receipt IP Automatically (DHCP) Manually. IP-address 192.168.42.129 (case) 192.168.42.10 Subnet mask 255.255.255.0 255.255.255.0 Main lock 192.168.42.129 192.168.42.129 ⚠️ Attention: When manually adjusted IP-Addresses make sure they are on the same subnet as the phone gateway (usually 192.168.42.x), Otherwise, there will be no connection. Solving Connection Problems and Errors Despite Easy Setup, Xiaomi Mi Users 9T The most common problem is that the computer charges the phone but doesn't see the modem. This almost always indicates a cable malfunction. Replace the cable with a known data Cable, not just a charger. Another common situation is that drivers don't install. Windows 10 and 11 are rare, but Windows 7 or 8 may require manual installation. USB Driver from the official developer website or use the program MI PC Suite (although it's no longer officially supported, the drivers inside are up to date). If internet speeds are low, check what type of network the phone is using. → SIM-maps and mobile networks → Type of network. Make sure you are selected Preferably 4G/LTE. Sometimes the phone switches to 3G (H+/3G), So, this is a very low speed, and you can also try to switch mode. USB In the menu for developers on MTP or PTP, And then back up to reset the connection. 🔄 Reboot both devices: both smartphone and computer. 🔌 Use another one. USB-port, preferably USB 3.0 (blue). ⚙️ Reset your network settings on your phone in the recovery menu. 📡 Check the balance and availability of traffic on SIM-map. 💡90% trouble USB The modem is solved by replacing the cable or switching USB-Optimization and additional features for advanced users Xiaomi Mi 9T Offers additional customization options. In the Developer Menu (activated by seven clicks on the build number in About Phone), you can find the Select Configuration option. USB. You can force the mode to work here, which helps if the standard method doesn't work, and you should also pay attention to the traffic limit. Operators often limit the amount of data when you give the Internet (tethering). To avoid blocking, some users change the data. TTL (Time to Live packages. On Android, it requires root rights or special applications, but on the MIUI You can try to change the meaning. TTL In the mobile network settings, if the operator is hard-filtering the traffic, remember to monitor the temperature of the case. USB The modem heats the phone less than the Wi-Fi hotspot, with prolonged work in the phone 4G/5G Heat is possible. Remove the case if it's dense, and don't cover the phone with heavy objects while you're working.Use Xiaomi Mi 9T As a modem, it is an effective way to stay online. The right setup and understanding of how to work makes it a powerful tool for work and entertainment anywhere. USB?No, it is technically impossible to transmit a Wi-Fi signal through the USB-cable. USB It only transmits digital data that the computer converts into a network connection (Ethernet/RNDIS). Why the computer can't see USB Xiaomi Mi modem 9T? Most often, the problem is the cable that only supports charging. Second, the lack of drivers in the computer's operating system. Third, the mobile data transmission on the phone itself is not enabled. USB Battery wear modem? When connected by USB The battery is not discharged, but charged, but the heat from the modem and the processor can adversely affect the chemistry of the battery during prolonged use in hot conditions. Can you give the Internet to Xbox or PlayStation via USB? Consoles do not support direct connection of Android smartphone over USB to get the Internet. This will require using a PC as an intermediary or still use the Wi-Fi access point. Does the operator charge extra for modem mode? Depends on the tariff. Many modern tariffs include unlimited distribution, but some operators can block access or charge additional fees. Check the terms of your plan. How to increase Internet speed via USB modem? Make sure that the phone catches a 4G/LTE signal full scale. Use USB 3.0 port and cable to close the entire computer.