Situations where a desktop computer or laptop is left without access to the global network, and the Wi-Fi router suddenly turns off or is not at hand, arise for every digital user. At such moments, the smartphone becomes the only salvation that allows you to quickly go online for work or study. Modern Xiaomi, Redmi and POCO devices are equipped with powerful communication modules that allow you to effectively transmit mobile traffic to other gadgets.
There are several proven ways to turn your device into a full-fledged router, each with its own technical features and use cases. The choice of the specific method depends on the availability of free ports, the requirements for connection speed and the need to save battery power. Below we will discuss in detail the algorithms for all current connectivity options.
Before you start setting up, make sure that your data plan includes data service and funds are available on your balance sheet. It is also worth checking the signal level in the room, as it depends on the quality of reception. 4G/LTE The final speed on the computer being connected depends on it. If these basic conditions are met, you can move on to a technical implementation.
Setting up a Wi-Fi hotspot for Internet distribution
The most popular and universal method is to create a virtual access point through a wireless Wi-Fi interface. This method requires no wires and allows you to connect several devices to the network at once, including laptops, tablets and even game consoles. To activate the function, you need to go to the system settings menu, where the corresponding network management section is located.
Once you log in, you should select Wi-Fi Access Point and activate the power slider. The system will prompt you to set a network name (SSID) and set a strong password to prevent unauthorized access to your traffic. It is important to use a strong encryption protocol, usually WPA2 PSK, which provides a basic level of protection for the transmitted data.
In advanced MIUI or HyperOS settings, you can change the frequency range of the radio module. Switching to 5 GHz will achieve a higher data rate, but the coverage radius and penetration of walls in this range is lower than that of a standard 2.4 GHz.
⚠️ Attention: Active distribution of the Internet through Wi-Fi significantly increases the power consumption and heating of the smartphone case.
To optimize the access point, you can limit the number of clients you can connect to or set an automatic shutdown timer, which will help save battery power if you forget to turn off the function after the session is over.
Connection through USB-cable: stability and speed
If you want maximum connection stability and minimum delays (ping), then use USB-The leader of the cable is the one that does not only provide a reliable communication channel that is protected from external radio interference, but also allows you to simultaneously charge the battery of the mobile device from the computer.
To get started, you need to connect your smartphone and PC with a high-quality cable that can transmit data, not just the current for charging. Once you physically connect to the phone menu, in the settings section of the access point, the hotspot will become an active point. USB-It needs to be manually activated, as this feature is often disabled by default for security reasons.
The operating system of a computer, whether it is Windows, macOS or Linux, must automatically determine a new network connection. In the Device Manager, it will appear as a virtual network card. If the drivers are not installed automatically, you may need to manually install components through the manufacturer's official website or the Mi PC Suite application.
☑️ Checking before connection USB
The advantage of a wired connection is that it doesn't lose speed due to radio interference, which is critical for high-resolution online games or video conferencing, and it doesn't consume the phone's battery, but instead it feeds it, allowing it to be used as a full-fledged stationary modem.
Using Bluetooth modem to save energy
While Bluetooth technology is significantly inferior in data transfer speeds to modern Wi-Fi and USB standards, it remains relevant for situations where you need to transfer a small amount of text or mail at a critically low battery charge.
The setup process starts with pairing the computer and the smartphone. Make sure both devices see each other, and perform (pairing) by entering the same confirmation code on the screens of the gadgets. After successfully pairing in the Bluetooth settings on the phone, you need to activate the Bluetooth modem.
On the computer side, in the Bluetooth device control panel, you need to find a paired Xiaomi smartphone, right-click and select the PAN (Personal Area Network) option, and the system will establish a connection that will run slower than Wi-Fi, but more stable than intermittent EDGE.
⚠️ Attention: Connection speeds via Bluetooth modem rarely exceed 1-2 Mbps: Do not use this method to watch videos in the HD uploading large files.
This method is also useful in corporate networks with tight security restrictions, where the use of unknown Wi-Fi adapters can be blocked by the administrator, and the Bluetooth protocol is considered a more controlled channel of communication.
Comparison of connection methods: Characteristics table
To make a definitive decision on how to distribute the Internet, it is advisable to conduct a comparative analysis of the technical characteristics of each method, and different use cases dictate their requirements for bandwidth, delays and energy efficiency.
Below is a table showing the key differences between USB, Wi-Fi and Bluetooth connectivity in the context of using a Xiaomi smartphone as a modem.
| Characteristics | USB-modem | Wi-Fi access point | Bluetooth modem |
|---|---|---|---|
| Maximum speed | High (up to 400+ Mbps) | Medium/High (depending on the standard) | Low (up to 2 Mbps) |
| Delay (Ping) | Minimum | Medium | Tall. |
| Battery consumption | Charging from a PC | High-pitched | Minimum |
| Number of clients | 1 | Up to 10 devices | 1 |
| Stability | Maximum | Depends on the interference. | Medium |
Analyzing the data, we can conclude that for constant work at the computer is best suited USB-If you want to quickly give a file to a colleague or connect a tablet for a child, Wi-Fi is the best choice.
Hidden APN settings
Optimization and extension of autonomous operation
Modem mode is one of the most energy-intensive processes for a smartphone. The intensive operation of the radio module and the constant exchange of data lead to rapid battery discharge and heating of internal components. To minimize the negative impact, it is recommended to reduce the brightness of the screen to a minimum or turn off the display completely after activating the hand.
Xiaomi’s access point settings allow you to set a traffic limit, a useful feature that will automatically turn off the modem after reaching a predetermined amount of data (e.g., 1GB or 5GB), a precaution that will save you from unexpected expenses if the mobile operator does not provide unlimited rates.
It’s also worth disabling background apps on the smartphone itself, which can consume traffic while you’re giving away the internet. Updating apps on Google Play, syncing photos in the cloud, or downloading news can quietly “eat” part of your data packet.
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Use Do Not Disturb mode when you're sharing the Internet, which will prevent pop-up notifications from appearing on the screen if it's on and reduce the CPU load, which will slightly extend battery life.
If you use USB-Moding often makes sense to purchase a high-quality cable with support for fast charging, which will ensure that sufficient current is supplied to the phone, offsetting the energy costs of data transmission over the network.
Solving Common Connection Problems
Despite the ease of setting up, users may face a number of technical difficulties: often the computer sees the phone as a charging device, but does not define it as a network adapter. USB-port.
When connecting the cable, select the file transfer mode in the menu that appears on the smartphone screen (MTP) or specially designed regime USB-modem, if it is placed in a separate notification menu, sometimes it helps to switch the debugging mode on the USB developer menu.
Another common problem is that there is no internet on the connected device when there is a signal on the phone, which can be caused by incorrect APN settings or blocking by the mobile operator. Some data plans prohibit Internet distribution (Tethering), and the operator can artificially slow down the speed or block the connection.
⚠️ Warning: If your computer can’t see the modem drivers, try temporarily disabling the antivirus or firewall that can block the creation of a new network connection.
In the case of persistent errors, a complete reset of network settings on a smartphone will help, which will remove stored Wi-Fi passwords and Bluetooth settings, but often resolves software conflicts of communication modules.
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A USB cable connection is always preferable for stationary work, as it guarantees maximum speed and no radio interference, unlike wireless methods.