The modern smartphone has long ceased to be just a means of communication, becoming a full-fledged mobile office and entertainment center. Xiaomi Mi 9, despite its age, remains popular due to its powerful processor and high-quality display, making it an ideal candidate for use as a modem. When fixed Internet is not available or urgent connection of the laptop to the network, the function of distributing traffic becomes critical.
However, users often face the nuances of the shell MIUI, The wrong configuration can lead to the fact that other devices simply do not see the network or can not get access to the network. IP-In this article, we will discuss in detail all ways to activate the access point, optimize settings for maximum speed and solve typical connection problems.
Internet sharing is not just about turning on a single button, it’s a comprehensive setup of frequency bands, security protocols and energy management. Competent setting will allow your Xiaomi Mi 9 to work as a full-fledged router, providing a stable signal for multiple devices simultaneously without overheating and fast discharge.
Basic activation of the access point through settings
The most common and convenient way to provide access to the network to other devices is to use the built-in Wi-Fi module. In the MIUI interface, this process is as simple as possible, but hides important parameters that are worth checking before you start.
Open the Settings app and find the Wi-Fi Access Point section, which can be in the Connection and Sharing category or be placed in a separate menu depending on the firmware version, and this is where the switch that activates the modem modem and the detailed configuration menu are located.
Once the slider is turned on, the smartphone will start broadcasting the signal. By default, the network name (SSID) matches the device model name, and the password is generated randomly. It is recommended to immediately change these parameters to more understandable to you, so as not to get confused in the list of available networks and protect the channel from unauthorized connections.
☑️ Checking before handout launch
Notice the indicator in the status bar: when you're actively giving, there's an access point or antenna icon, and if you don't see the icon after you turn on the slider, there's probably an operator lock or a system failure, in which case, try restarting the device and repeating the procedure.
Configure security parameters and frequency
Deeply configured the access point on Xiaomi Mi 9 allows you to adapt the module to the specific reception conditions and requirements of the connected devices. Go to the Setting up the access point menu to see an extended list of options hidden from quick access.
The key here is frequency range. The default value may be "2.4 GHz," which provides better signal penetration, but has a lower speed. Switching to 5.0 GHz will significantly increase data rate, but the range will be reduced, and older devices may no longer see the network.
⚠️ Note: When choosing a 5GHz band, make sure that the receiving device (laptop or tablet) supports this standard. Otherwise, it will simply not find your network in the list of available connections.
It also configures the security protocol. Always choose WPA2 PSK or WPA3 if available. Using an open network or an outdated WEP protocol makes your data vulnerable to interception. The password must be complex, containing letters and numbers to exclude bruteforce selection.
In addition, you can hide the SSID (network name), in which case the access point will stop broadcasting its name, and the connection will require manually entering the network name on the client device, which adds a level of security through uncertainty, although it is not a full protection from experienced users.
The effect of encryption on speed
Distribution of Internet via USB and Bluetooth
Wireless connectivity is not always the best solution. If you want maximum stability or need to save battery power of the receiving device, it is worth considering wired alternatives. Xiaomi Mi 9 supports data transfer via the Internet. USB-cable and Bluetooth protocol.
For activation USB-Modem connect your smartphone to your computer with a cable. In the access point settings menu, select the item USB-The computer automatically recognizes the new network connection and installs the necessary drivers, this method ensures no packet loss and minimal ping, which is critical for online games or video calls.
- 🔌 USB-modem: provides simultaneous charging of the smartphone and data transfer with maximum speed.
- 🔵 Bluetooth modem: Suitable for older laptops without Wi-Fi, but transfer speeds will be limited by Bluetooth protocol capabilities.
- ⚡ Energy efficiency: wired connection consumes less energy per unit of traffic transmitted compared to a Wi-Fi emitter.
Bluetooth mode is activated similarly, but requires pre-pairing devices. On a computer in the Bluetooth settings, you need to select your Xiaomi Mi 9 and click Connect through → Access Point. The speed here rarely exceeds 2-3 Mbps, which is only enough for instant messengers and easy web surfing.
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Use a quality USB Type-C cable to connect. Cheap charging-only cables have no data lines, and modem modem mode is not activated.
Managing Connected Devices and Limits
Controlling who is using your traffic is an important part of setting up. MIUI There's a Connected Devices section that shows you a list of all the gadgets that are on the network. IP-addresses and volume of data transmitted in real time.
The system allows you to set tight limits, you can set a traffic limit, after which the distribution will automatically turn off, which will save you from unexpected expenses if the tariff plan does not include unlimited Internet. A Blacklist feature is also available to block specific MAC-address.
| Parameter | Description | Recommended value |
|---|---|---|
| Connection limit | Maximum number of devices | 4-6 devices |
| Time out | Time to disconnect without customers | 5-10 minutes |
| IP range | Distribution address pools | 192.168.43.x |
| Protocol | Encryption standard | WPA2-PSK |
The timeout feature is particularly useful for saving battery life. If no one connects to the access point within a given time or all devices shut down, the Xiaomi Mi 9 will automatically turn off the Wi-Fi module. This prevents the situation when you forgot to turn off the transfer and the phone is dead to zero.
The solution: why the distribution is not working
Despite the reliability of the system, users can experience errors, and one of the most common problems is that devices see the network but can't connect or write, "Can't get a hold of it." IP-This is often solved by changing the frequency range from 5 GHz to 2.4 GHz.
Another common situation is that the hotspot button is inactive (gray), which may mean that your mobile Internet is turned off or flight mode is on. SIM-A map that can block the internet.
⚠️ Attention: Some mobile operators block the ability to distribute Internet at tariffs with unlimited traffic. If the access point is turned on, but the Internet on connected devices does not work, try changing the setting APN mobile network settings.
For modification APN Go to Settings. → SIM-maps and mobile networks → Access points (APN). Create a new point or edit the current one by adding the dun parameter to the type field. APN (If the field is hidden, click the three-dot menu, which sometimes helps bypass the provider's restrictions.
Optimizing energy consumption and productivity
The mode of the access point is one of the most energy-intensive for a smartphone. Active operation of the radio module, processor and screen (if it is turned on) leads to rapid heating of the case Xiaomi Mi 9. To minimize risks, it is recommended to remove the case during prolonged operation.
MIUI has built-in protection mechanisms, so if the CPU temperature reaches critical values, the system will force the access point to be turned off or power down, and to avoid this, do not use the phone for heavy tasks (games, video shooting) at the same time as the Internet is distributed.
You can use third-party utilities or scripts for more subtle control, but standard tools are usually enough, the main thing is to monitor the charge level. If the battery drops below 10-15%, the function can be automatically disabled to preserve the ability to make emergency calls.
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For long-term operation in the router mode, it is better to keep the phone connected to the charger, but monitor the heating temperature, since simultaneous charging and discharge (module operation) strongly heat the battery.