Smartphones of the series Redmi from the company Xiaomi have long established themselves as reliable devices capable of not only consuming traffic, but also effectively sharing an Internet connection. Wi-Fi hotspot at the base Redmi 9 Turns your phone into a fully-fledged router, which is especially useful when traveling, on business trips, or when a partner's internet connection is temporarily unavailable. Owners often wonder how to properly configure this process to avoid draining the battery too quickly and ensure stable speeds.
In the operating system MIUI, on which it is based Redmi 9, a convenient and functional traffic distribution mechanism has been implemented. However, hidden settings allow you to optimize the module's operation by selecting the optimal signal frequency or limiting the number of connected devices. Below, we'll cover all setup steps in detail, from basic activation to advanced security settings.
⚠️ Attention: Shell interface MIUI may vary slightly depending on the firmware version (Global, China, EU). The layout of menu items may vary, but the logic remains the same for all models in the line. Redmi.
Basic hotspot activation via the notification shade
The fastest way to start sharing your internet is to use the control panel. It only takes a few seconds and doesn't require diving deep into the settings menu. Simply swipe down to open the notification shade on the screen. Redmi 9.
In the expanded list of shortcuts, look for the icon labeled "Hot Spot" or "Wi-Fi Hotspot." If the icon isn't on the first page, swipe left or tap the edit button (usually a pencil or three dots) to add the widget to the home screen. Once activated, the icon will glow blue, indicating the device is ready to accept connections.
It is important to understand that automatic switching on when connecting a USB or Bluetooth cable in standard settings MIUI is often disabled by default to save power. You'll need to manually enable the feature each time you want to share your mobile traffic with other gadgets.
Detailed network name and security password settings
Before allowing others to connect to your Redmi 9, it is necessary to establish reliable identification parameters. The default network name often contains the phone model, making it easily recognizable to attackers. It is recommended to change SSID (network name) to something neutral that does not reveal information about the device owner.
To change the settings, go to the menu Settings → Wi-Fi HotspotHere you'll find the "Access Point Setup" section. In the "Network Name" (SSID) field, enter the desired name. In the "Password" field, enter a complex character combination. System Android requires a minimum of 8 characters, but for real security it is better to use 12 or more characters, including letters of different upper and lower case and numbers.
- 🔒 Encryption: Make sure the security protocol is selected WPA2-Personal or WPA3, if the device is supported by clients. This is an industry standard that ensures the security of transmitted data.
- 👁️ Hidden network: Some firmware versions offer an option to hide the SSID. When enabled, the network will not appear in the list of available networks, and you will have to manually enter the name to connect.
- 📱 Device limitation: The Device Management feature allows you to see who is connected and block unwanted users in real time.
Don't neglect password complexity, as open access to your access point can lead to the leaking of personal data or the use of your traffic for illegal activities. Xiaomi provides fairly flexible tools for controlling the connections you want to use.
Selectable frequency range: 2.4 GHz or 5 GHz
One of the key settings in the access point menu The Redmi 9 is a frequency band selector. By default, the system often selects automatic mode or 2.4 GHz, which provides maximum compatibility but not always the best speed. Understanding the difference between bands is critical for stable operation.
Range 2.4 GHz It has a longer range and penetrates walls better, but it is heavily congested in apartment buildings. Neighbors' routers, microwave ovens, and Bluetooth devices create interference, reducing the actual data transfer speed. This option is ideal if the receiving device is located far away. Redmi 9 or has an old Wi-Fi module.
Range 5 GHz Offers significantly higher speeds and is free from most interference. However, the signal range is shorter and it penetrates obstacles less effectively. If you're in the same room as your connected devices and need maximum performance for streaming or gaming, the choice is clear.
The influence of frequency on autonomy
The 5 GHz band consumes more battery power when actively transferring large amounts of data, but allows you to complete file downloads faster, which can ultimately save battery life.
| Parameter | 2.4 GHz | 5 GHz |
|---|---|---|
| Transfer speed | Up to 150-300 Mbps | Up to 400-800+ Mbps |
| Range of action | High (up to 50 m) | Medium (up to 20-30 m) |
| Penetration ability | Good | Low |
| Interference level | High | Short |
To change the frequency, go to Access point settings → Access point settings → Frequency rangeSelect "Prefer 5 GHz" or "Use 2.4 GHz" depending on your current needs and environmental conditions.
Sharing the Internet via USB and Bluetooth
Using Wi-Fi for data sharing isn't always practical. If you're connecting to a laptop or desktop computer, using a USB cable or Bluetooth may be a more energy-efficient and stable solution. Redmi 9 supports both of these methods.
USB modem — the best option for desktop use. It not only transfers data but also charges your smartphone, offsetting high power consumption during heavy data use. To activate, connect your phone to your computer via cable, wait for the drivers to install (if necessary), and turn on the "USB tethering" switch in the hotspot menu.
Bluetooth panorama It's slower than Wi-Fi but consumes minimal power. It's an excellent choice for sharing internet with smartwatches, fitness trackers, or older laptops without Wi-Fi but with Bluetooth support. Speed is limited by the protocol, but it's plenty for messaging and navigation.
☑️ Checking the USB connection
⚠️ Attention: When connecting via USB, the computer may detect a new network device. On corporate networks, this can cause IP address conflicts or blocking by the network administrator.
Managing connected clients and limits
Controlling who uses your data is an important part of security and saving money. In the interface MIUI A simple yet effective monitoring mechanism has been implemented. The "Connected Devices" section displays a list of all gadgets currently using the internet through your Redmi 9.
You can manually block any suspicious devices. Simply click on the device name or its MAC address and select "Block." This will block network access for that device, even if it knows the correct password. You can also set connection limits.
- 🚫 Blocking: Instantly disconnect from the selected client.
- ⏱️ Time-out: Automatically turn off the access point if no one is connected to it for a specified time (for example, 5 or 10 minutes).
- 📊 Statistics: View the amount of data transferred for each connected device (not available in all firmware versions).
It's recommended to set a limit of 3-5 devices unless you plan to create a hotspot for a large group of people. This will prevent overloading the smartphone's processor and causing excessive heating.
Energy optimization and problem solving
Hotspot mode is one of the most resource-intensive processes in a smartphone. Wi-Fi module operates at high power, the screen often remains on for monitoring, which leads to rapid battery drain and heating of the case Redmi 9To minimize the consequences, you should follow a number of rules.
First, lower your screen brightness or use the "Screen off" feature in the hotspot settings if this option is available in your version. MIUISecondly, close background apps that may consume bandwidth or load the CPU. Thirdly, remove your case if it's thick and interferes with heat dissipation to avoid throttling (performance loss due to overheating).
If your devices don't see the network or can't connect, try the following steps: restart your smartphone, reset network settings (Settings → Connection and sharing → Reset Wi-Fi, mobile networks, and Bluetooth), and also make sure that the operator's account has available traffic and that the provider has not activated the time-to-live (TTL) blocking.
Frequently Asked Questions (FAQ)
Why does the laptop see the Redmi 9 network, but says "No Internet access"?
Most often, the problem lies with DNS settings or a lack of mobile data on the SIM card. Try manually entering the DNS (e.g., 8.8.8.8) in the Wi-Fi settings on your laptop or checking your mobile carrier's balance. It's also possible that your carrier is blocking data sharing.
Is it possible to share Wi-Fi if the Redmi 9 itself is connected to a Wi-Fi network?
In the standard Android and MIUI configurations, it's impossible to broadcast Wi-Fi while receiving it (repeater mode). However, some models allow you to use Wi-Fi for internet access and broadcast via USB or Bluetooth. Simultaneous operation of two Wi-Fi modules requires root access or specific hardware solutions.
How to find the MAC address of an access point on Redmi 9?
The access point's MAC address is usually the same as the phone's Wi-Fi module's MAC address. It can be found in the menu. Settings → About phone → General information or in the section Settings → Wi-Fi Hotspot → Set up hotspot (sometimes hidden, you need to click on the gear or additional options).
Does the operator charge an additional fee for internet distribution?
It depends on your plan. Many modern plans include unlimited data access, but some carriers may limit speeds or charge a subscription fee for the "Modem Mode" service. Check your plan's terms in your carrier's personal account.