In situations where a fixed Wi-Fi router is unavailable or is unstable, the smartphone becomes the only salvation for access to the global network. MIUI or HyperOS, often faced with the need to provide access to a laptop or desktop PC. USB-cable for this purpose is the most rational choice, as it provides a stable connection without losing the speed characteristic of wireless protocols.
Modern smartphones are equipped with powerful modems that can support high speeds of 4G and 5G networks. Transmitting this signal to a computer through a wired connection allows not only quick access, but also significantly save battery life, as it will be charged from the PC port. This method is especially relevant for those who work with large amounts of data, where every millisecond of ping is important.
In this article, we will discuss in detail the algorithm of actions for activating modem modem, consider possible problems with drivers and offer solutions for common errors. USB-Modem in minutes using standard Android operating system tools. This guide is relevant for most current models, including the Redmi series, POCO and the Mi flagship line.
Advantages of wired connection over Wi-Fi and Bluetooth
The choice of the way to distribute the Internet is often dictated by circumstances, but technically, the Internet is not a problem. USB-The connection beats wireless peers in a number of critical ways, primarily signal stability, and wireless networks are susceptible to interference from other devices, thick walls and neighboring routers, leading to ping surges. The cable provides an isolated data channel, excluding external interference.
The second important aspect is power consumption: when operating in Wi-Fi hotspot mode, the smartphone heats up and discharges quickly because the radio module runs at its limit. In wired mode, the power comes from the computer, which allows the device to run for hours without recharging, which prolongs the life of the lithium polymer battery, preventing it from degrading from overheating.
Also worth noting is data security: Public Wi-Fi networks are often not properly secured, making traffic vulnerable to interception; a direct connection to a PC creates a local network that only your computer can access; this is critical when dealing with corporate data or online banking on trips.
Finally, the data transfer speed through USB-The 2.0 and higher interface is far superior to Bluetooth and often even 2.4GHz Wi-Fi, which allows you to upload heavy files, stream high-resolution video and conduct video conferencing without artifacts or delays.
Requirements and equipment preparation
Before you start setting up, make sure that your equipment meets the minimum requirements for proper operation. First of all, you need the Xiaomi smartphone itself with a serviceable one. USB-A port and SIM card with an active tariff plan, and the operator must maintain network operations. 4G/LTE in your region.
The quality of the cable is crucial. Cheap cables bundled with some budget accessories are often only for charging and don't have internal lines to transmit data. Use the original cable or certified analogue labeled Data Transfer. Visually check the connectors for no oxidation and no damage.
☑️ Checking connection readiness
On the computer side, you also need training. If you're using a desktop PC, make sure the ports on the motherboard are in good working order. For laptops, there's usually less trouble, but checks are good. USB-Windows 10 or 11 will automatically recognize most Android devices, but in rare cases, drivers may be required.
⚠️ Warning: Be sure to turn on mobile data on your smartphone before connecting. If the mobile Internet slider is turned off, the computer will not be able to access the network even if the modem modem is activated.
Step-by-step activation instruction USB-Xiaomi modem
The setup process on Xiaomi devices is as simple as possible for developers and does not require superuser rights or third-party software installation. All functionality is built into the system menu. Follow the algorithm to activate the connection.
First, connect your smartphone to your computer using a cable. Wait for the system to identify a new device. The phone screen may ask for permission to access data or select a USB mode. If the mode selection menu pops up, select File Transfer or MTP, although this is not always critical for the modem, but it helps the system understand that the device is connected.
Then go to the system settings. The path may vary slightly depending on the version of MIUI, but the logic remains the same. Find the partition that's responsible for the connections and the network, and that's where the switch we want to use is hidden.
Settings → Connection and Sharing → USB- ModemIn the menu that opens, you'll see a feature activation slider. Put it in the active position. The system can warn you that Wi-Fi will be turned off, because the antenna can't simultaneously be in the receiving and distributing mode at the same frequency. Confirm action.
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If a slider"USB-The modem is inactive (gray), try reconnecting the cable or rebooting the smartphone.
After turning on the screen of the smartphone will appear icon USB-connection in the status bar, and in the Windows tray (in the lower right corner) will display an icon of the new network connection. IP-The address from the phone and will start working on the network.
Set up network parameters and install drivers
In most cases, Windows automatically installs the required drivers for Android devices using standard RNDIS protocols. However, if the computer does not see the phone or writes "Unidentified Network", manual will be required.
Xiaomi devices sometimes require the installation of universal ADB drivers or specific MediaTek/Qualcomm drivers, depending on the processor of your smartphone, which can be downloaded from the official website or from reliable sources like Android SDK Platform Tools. After installing the drivers, restart your PC.
If your device is determined but the Internet is not working, check the APN settings, which must match your carrier, and you can access them on the way:
→ SIM-maps and mobile networks → Access points APNIf your operator profile is lost, click the Reset button on the menu to restore factory settings. Incorrect APN settings are a common cause of connection failures even when the USB link is active.
| Parameter | Value for most operators | Note |
|---|---|---|
| Name (Name) | Internet (or operator name) | Arbitrary |
| APN | Internet (or operator-specific) | Critically important |
| Type APN | default,supl | No gaps. |
| Protocol | IPv4/IPv6 | Both are recommended. |
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The right APN setup is key, and even with a perfect physical connection, the wrong hotspot address will block the access to the network.
Diagnostics and Solving Typical Problems
Despite the simplicity of the procedure, users may encounter technical difficulties, and one of the common problems is when the computer sees the phone as a drive or only charges it, ignoring network functions, in which case you need to check the mode of operation of the USB in the "Developer" menu or simply change the cable.
Another common mistake is that you don't have access to the Internet when you have a connection, which is often due to carrier blocking, and some tariff plans prohibit tethering, which is defined by the TTL (Time To Live) value of data packets.
⚠️ Attention: Bypassing the operator's handout blocking may violate the terms of the user agreement.
For advanced users, there is the option to change the TTL on the smartphone itself so that packets look like they are coming from a mobile device rather than a PC. This is done through ADB commands or special applications requiring root rights, which is outside the standard instruction, but is an effective method.
How to change TTL to Xiaomi without Root (ADB method)
Also, problems may arise from an antivirus or firewall on your computer that can block a new network connection. Try temporarily disabling the security software to test the hypothesis.
The effect of modem modem modem on system and battery
Long-term work in the regime USB-The modem puts a strain on the processor of the smartphone, which is engaged in encryption and routing traffic, and although the heat in this mode is less than in Wi-Fi, it is still present, especially in areas of poor network coverage, when the phone is constantly looking for a signal.
Using high-quality cables not only provides data transfer, but also fast charging. However, if the computer port is old (USB 2.0), the charge current may not be enough to compensate for the energy consumption of the modem, and the battery will still slowly discharge or stand still. USB 3.0 ports (blue) are preferable.
Android system resources are also used to maintain network services, while apps can be updated, photos synced and cloud services can run in the background, increasing traffic, and limiting background activity of heavy apps on a smartphone before connecting.