In situations where wired Internet is disabled or Wi-Fi is not available, mobile Internet becomes the only way to access the network for a laptop or desktop PC. Xiaomi Redmi series smartphones have excellent functionality for distributing traffic, and the model is the most popular. 9A This is no exception. USB-cable is preferred over Bluetooth or Wi-Fi access points, as this provides a more stable connection and less latency (ping).
In addition, data transmission over the wire allows you to simultaneously charge the battery of the device, which is critical for long-term work with heavy content. Many users do not know that hidden settings can significantly speed up data transfer and solve problems with device recognition by the Windows operating system.
Benefits of a wired connection Redmi 9A over wireless
Using the Xiaomi Redmi smartphone 9A mode USB-The modem offers a number of technical advantages over a standard Wi-Fi hotspot. First, the stability of the signal over the cable is almost independent of interference in the air, such as microwave ovens or neighboring routers. This is especially important for video calls and online games, where packet loss is unacceptable.
Second, when working through USB-The power consumption of the phone's battery is significantly reduced in Wi-Fi mode, the processor and radio module of the smartphone are at their limits, causing the case to heat up. The cable connection allows the gadget to work in a gentle mode, receiving power directly from the computer.
The third factor is data security: Wireless networks are susceptible to interception by intruders within range, and the wired connection between Redmi 9A and the PC is an isolated channel, which eliminates the possibility of external listening to traffic at the physical level.
Necessary components for successful configuration
Before starting the process, make sure you have a good one on hand. USB-It is advisable to use the original wire that came with Xiaomi Redmi. 9A, Because cheap analogs can only support charging and not transmit data, and the lack of a high-quality twisted pair inside the cable is the most common reason why a computer can't see a phone.
You will also need a computer running the Windows operating system (7, 10 or 11) active SIM-card with the mobile operator's connected tariff, make sure the phone is on data and has a reliable network signal 4G/LTE. Without this, setting up the modem makes no sense.
- 📱 Smartphone Xiaomi Redmi 9A working SIM-card.
- 🔌 Original or certified USB-micro-USB cable.
- 💻 Computer with serviceable USB-Port and Internet access (for installing drivers).
- 🔋 Battery charge of at least 20% in case of driver problems.
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Use the rear USB ports on a desktop PC, as they are connected directly to the motherboard and provide a more stable voltage than the front ports of the case.
Step-by-step activation USB-modem on Xiaomi Redmi 9A
Process of incorporation of modem modem in the shell MIUI It's as simple as possible, but it's very nuanced. First, connect your phone to your computer with a cable. Then unlock your smartphone screen and lower the notification curtain from top to bottom «USB-Modem (usually a chain or computer) and activate it.
If there is no icon in the curtain, go to the settings menu. → Connection and sharing → USB-Modem. Move the slider to the active position. The system can request confirmation or alert you to traffic consumption — we agree.
☑️ Check modem activation
Once the slider is activated, Windows will start installing the necessary drivers. In the lower right corner of the computer screen, a notification should appear that a new network device has been connected. If the status changes to Connected, then the Internet is already working.
Solving problems with drivers and device recognition
Often, the phone charges but the internet doesn't show up, which means Windows couldn't automatically install RNDIS drivers. In Device Manager, this hardware can be displayed as "Unknown Device" or "Android" with a yellow exclamation point.
Open Device Manager (click Win + X and select the appropriate option). Find the device with the error, right-click and select "Update driver." Then select "Select driver from the list of available drivers on the computer."
⚠️ Note: In the list of manufacturers, select Microsoft and in the list of models, find Remote. NDIS Internet-based Sharing Device: Don’t confuse it with drivers MTP, Those who are responsible only for file transfer.
If Microsoft’s standard driver doesn’t fit, you may need to install ADB Driver or Qualcomm-specific drivers (the processor on which Redmi 9A is based) only from official resources or trusted forums to avoid viruses.
What to do if the driver does not stand up?
Setting up an APN hotspot to speed up the internet
Sometimes the speed of the connection is USB-The modem is lower than expected due to incorrect settings of the access point (APN). Operators can prioritize traffic differently depending on the type of device. 9A As a modem, you need to create a new profile. APN.
Go to Settings. → SIM-maps and mobile networks → SIM-card (yours) → Access points (APN). Click the "New Access Point" button or «+». In the Name field, type any name, such as FastInternet. In the Access Point field (APN)» Enter your operator’s details (usually the internet, mts or beeline).
| Operator. | APN (Access Point) | User name | Password. |
|---|---|---|---|
| MTS | internet.mts.ru | mts | mts |
| Beeline | internet.beeline.ru | beeline | beeline |
| MegaFon | internet | (empty) | (empty) |
| Tele2 | internet.tele2.ru | (empty) | (empty) |
After filling in the fields, be sure to save the profile and activate it (check a tick or dot).Reboot the phone to make the changes take effect.This action often helps bypass speed limits if the provider incorrectly determines the type of device.
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Proper APN setting can increase download speeds by 1.5-2 times and reduce ping, as the operator’s servers will handle your traffic using a priority protocol.
Additional settings and system optimization
For advanced users, the ability to change hidden parameters through the engineering menu or ADB-For example, you can force the phone to switch to mode. USB 2.0 or change the priority of networks. However, for most users, standard settings are sufficient. MIUI.
It is important to keep an eye on system updates. In newer versions of MIUI, Xiaomi often improves network connection algorithms and fixes compatibility bugs with Windows 10/11. You can check for updates in the Settings menu → About Phone → MIUI version.
⚠️ Warning: Do not install dubious apps from the Play Market that promise to “boost the signal” or “speed up the Internet.” They often contain ads and can disrupt the regular network modules of the phone.
It is also recommended to disable traffic savings for background applications while the modem is running, which will prevent situations where the system artificially limits the speed of background processes, which can affect the overall performance of the connection.