Modern smartphones have long ceased to be just devices for making calls, turning into full-fledged tools for work and entertainment. Model Xiaomi Redmi Note 9Despite its age, it remains popular thanks to its excellent battery life and MIUI functionality. One of the key features used by owners is the tethering mode, or Wi-Fi hotspot. This allows you to quickly connect your laptop, tablet, or other device to the internet anywhere without a wired connection.
The process of activating this feature on brand devices Xiaomi has its own characteristics that distinguish it from the standard AndroidThe MIUI interface offers advanced security and traffic management settings that are important to consider during initial setup. In this article, we'll cover every step in detail, from basic setup to fine-tuning settings for maximum speed and security.
Before setting up, make sure your device has mobile data and a strong cellular signal. Without this step, data sharing will be impossible, even if all Wi-Fi settings are correct. It's also worth checking your SIM card balance or whether you have an unlimited data plan enabled, as data usage is limited to the standard amount.
Basic activation of the access point via the curtain
The fastest way to get started distribute Wi-Fi — Use the control panel, accessible by swiping down from the top. In the MIUI interface, this element is usually located on the first or second widget page and has a distinctive icon. Tapping it instantly activates tethering mode if it's already configured.
However, if you're using this feature for the first time, the system may redirect you to the settings menu to set a network name and password. This is a standard security procedure to prevent unauthorized access to your connection. Ignoring the password setting is not recommended, as open networks are vulnerable to data interception.
For quick activation, follow these steps:
- 📱 Swipe down from the top edge of the screen to open the Control Center.
- 📡 Find the "Tethering & Hotspot" icon and tap on it.
- 🔒 If required, set a strong password in the settings window that appears.
It's important to understand that only basic functions are accessible through the curtain. For more advanced configuration, such as selecting a frequency band or limiting the number of connected devices, you need to go to the full system settings menu.
Configuring settings in the MIUI menu
Full control of distribution functions is carried out through the operating system settings section. Here the user has access to advanced options, which allow you to customize the access point's operation to your specific needs. The menu path may vary slightly depending on the firmware version, but the logic remains the same.
Go to the section Settings → Wi-Fi HotspotThis is where you'll find controls for the network name (SSID), encryption type, and frequency range. Properly setting these parameters directly impacts connection speed and signal range.
☑️ Check settings before connecting
Please pay attention to the following key parameters:
- 📶 SSID (Network Name): By default, it contains the device model, but it is better to set a unique name to avoid confusion in the list of available networks.
- 🔐 Safety: always choose a protocol WPA2 PSK or WPA3 to protect data from outsiders.
- ⚙️ Frequency range: The choice between 2.4 GHz and 5 GHz affects the speed and penetration of the signal through walls.
⚠️ Please note: In some regions or with certain carriers, the 5 GHz band may be blocked by software or not supported by the device's modem.
Choosing a Frequency Band: 2.4 GHz vs. 5 GHz
One of the most important settings in Xiaomi Redmi Note 9 The choice of frequency range determines how fast data will be transmitted and how far the signal will reach. Understanding the differences between these standards will help you avoid problems connecting older devices.
Range 2.4 GHz It's more versatile and compatible with the vast majority of gadgets released in the last decade. It provides better coverage and penetrates obstacles better, but is often overloaded with signals from neighboring routers and household appliances, reducing speed.
In turn, the range 5 GHz It offers significantly higher data transfer rates and is less susceptible to interference. However, its range is shorter and the signal penetrates structural walls less effectively. Furthermore, many older laptops and tablets simply cannot operate on this frequency.
How to check if a client device supports 5 GHz?
Go to the Wi-Fi settings on the receiving device (laptop or tablet). If you don't see your access point in the list of available networks when 5 GHz mode is enabled on your phone, the client's Wi-Fi module doesn't support this standard. Switch your phone to 2.4 GHz.
Comparison table of range characteristics:
| Characteristic | 2.4 GHz | 5 GHz |
|---|---|---|
| Transfer speed | Up to 150-300 Mbps | Up to 400-800+ Mbps |
| Range of action | High | Average |
| Penetration of walls | Good | Low |
| Compatibility | 100% of devices | Only modern gadgets |
Limiting traffic and managing connections
The data limiting feature is especially useful for users with limited data plans. MIUI has a convenient mechanism that allows you to set a data limit for tethering. Once the set amount is used up, the hotspot will automatically turn off.
To set up, go to the access point menu and find "Traffic Limit" or "Traffic Limit." Here you can select preset values (e.g., 1 GB, 3 GB) or set a custom limit. This will protect you from unexpected communication charges.
This section also provides a list of connected devices. You can see how many devices are currently using your internet and block unknown connections if necessary. This is an important aspect. security, which allows you to prevent "neighborly" traffic.
Connection control is performed through the following actions:
- 👥 Open the "Connected devices" menu in the access point settings.
- 🚫 Click on the name of the unknown device and select "Block".
- 📊 Check the list regularly, especially if your password has been compromised.
Hidden features and engineering settings
MIUI is known for its hidden features, which sometimes require activation through the engineering menu or special commands. In the context of Wi-Fi hotspot sharing, there are nuances related to the disconnection timeout. By default, the phone can turn off the hotspot if no one connects to it for 10 minutes.
To change the system's behavior, go to the access point's advanced settings. There may be an option to "Turn off access point if no connections are available." Disabling this feature will allow the network to remain on continuously, which is convenient for smart home systems or constant connections.
⚠️ Caution: Keeping the hotspot running constantly significantly accelerates battery drain and may cause the smartphone to overheat. Use this mode only when connected to a charger.
Another important detail is the ability to share the internet via USB or Bluetooth if the Wi-Fi module is busy or unstable. These options are also located in the "Tethering" section. USB modem often provides a more stable connection and simultaneously charges the phone.
Troubleshooting connection issues
Despite a well-functioning system, users may encounter situations where other devices cannot see the network or connect to it. Most often, the problem stems from incompatibility of security protocols or frequency bands, as discussed above.
If your laptop says "Unable to connect," try changing the encryption type from WPA3 to WPA2/WPA Mixed. Some older network adapters simply don't support the new security standards implemented in recent versions. Android and MIUI.
It's also worth checking whether the "Data Saver" mode is enabled on the access point itself, which can block the transmission of large data packets. Resetting network settings to factory defaults often helps resolve software glitches.
Basic diagnostic steps:
- 🔄 Restart your smartphone Xiaomi Redmi Note 9 and the receiving device.
- 📡 Switch the frequency range in the access point settings (from 5 to 2.4 GHz or vice versa).
- 🔑 Make sure you enter your password correctly, taking into account the case of letters.
⚠️ Note: The MIUI interface is updated regularly. The layout of menu items may change in new firmware versions. If you don't find the option described, use the settings search (magnifying glass at the top of the screen).
The impact of distribution on the battery and heating
Hotspot mode is one of the most power-hungry processes on a smartphone. The Wi-Fi module operates at increased power, constantly transmitting a radio signal, which leads to intense battery drain. For owners Redmi Note 9 I was luckier with its capacious battery, but the laws of physics haven't been repealed.
When operating in modem mode for extended periods, the device may become noticeably warm. This is a normal response of the processor and radio module to the load. However, critical overheating can lead to throttling (reduced performance) and accelerated battery wear.
Can I use a Power Bank for Wi-Fi distribution?
Yes, this is even recommended for long sessions. However, avoid using your phone for heavy gaming or navigation while simultaneously using Wi-Fi and charging to avoid overheating.
To minimize risks, follow these simple rules:
- 🔋 Connect your phone to a charger when using it for a long time.
- ❄️ Remove the protective cover if it does not dissipate heat well during active dispensing.
- 🌡️ Do not leave your phone in direct sunlight while working.
Proper operation will allow you to use your Xiaomi As a reliable internet source without damaging your hardware. Maintaining proper temperature control is key to ensuring your device's longevity.
Why does the access point turn off by itself after 10 minutes?
This is a built-in power-saving feature in MIUI. To disable it, go to the hotspot settings, find "Turn off hotspot," and set it to "Never" or increase the timer.
Is it possible to share Wi-Fi if the phone itself is connected to Wi-Fi?
This is possible on most modern Xiaomi smartphones with Wi-Fi Direct or Wi-Fi Repeater support. The phone will broadcast the internet it receives. Check the "Broadcast Wi-Fi" toggle in the hotspot menu.
Why is the speed via the access point lower than on the phone itself?
Speed will always be lower due to encryption overhead, dual signal conversion (4G/5G -> Wi-Fi), and Wi-Fi module bandwidth limitations in access point mode. Distance and the number of connected clients also play a role.
How to hide your network name (SSID)?
In the advanced settings of Xiaomi hotspots, there's often an option to "Hide device" or "Hide SSID." When enabled, the network won't appear in the general list, and you'll need to manually enter the network name on the client device to connect.