Modern smartphones Xiaomi And Redmi Mobile phones have long ceased to be mere devices for making calls, becoming full-fledged digital control centers. One of the most popular features remains the ability to use mobile internet to connect other devices, such as laptops, tablets, or game consoles. This is especially useful when traveling, where there is no wired internet access, and the quality of mobile coverage allows for comfortable work or video streaming.
The process of activating modem mode in the shell MIUI or HyperOS It may seem obvious, but hidden settings can significantly improve connection stability and data transfer speed. Many users aren't aware that default settings often limit the potential of their equipment, especially when it comes to frequency range or traffic limits. Understanding these nuances will help you avoid common mistakes and ensure a reliable connection for all connected devices.
In this article, we'll cover not only the basic steps but also delve into the technical aspects of access point setup. You'll learn how to choose the right frequency range for different tasks, how to secure your network from unauthorized connections, and what to do if your internet connection suddenly stops working. Proper configuration will transform your smartphone into a powerful and secure router, ready to operate in any conditions.
Basic activation of the access point in the system settings
To get started, go to your device's main settings menu. Find the section usually labeled Wi-Fi hotspot or is located inside a tab Connection and sharingThe interface may differ slightly depending on the firmware version, but the logic remains the same for all models in the line. Redmi Note and flagships Mi.
Once you enter the menu, you will need to set the network name (SSID) and password. It is recommended to use a complex password., containing letters and numbers to prevent unauthorized access to your traffic. Standard encryption WPA2-Personal is the optimal choice for compatibility with both old and new devices.
⚠️ Note: When you enable the hotspot, mobile data is automatically activated. Make sure you have a suitable data plan to avoid unexpected charges, especially when roaming.
It's also important to pay attention to the visibility setting. By default, the network is hidden, meaning you'll need to manually enter a name when connecting new devices. If you plan to frequently change devices or share access with friends, it makes sense to make the network visible, but be sure to change the password periodically.
☑️ Pre-launch check
Advanced settings: select 2.4 GHz or 5 GHz frequency
One of the key features of modern smartphones Xiaomi is support for dual-band networks. You can often find this option in the access point settings menu. AP range, where you can choose between 2.4 GHz and 5 GHz. Choosing the right band directly impacts connection speed and stability in specific operating conditions.
Range 2.4 GHz It has a longer range and penetrates walls better, but it's often overloaded by nearby routers and appliances. This can lead to reduced speed and increased ping, which is critical for online gaming or video calls. This option is suitable for browsing or working on documents away from the phone.
In turn, the frequency 5 GHz Provides significantly higher data transfer rates and is less susceptible to interference. However, the range of this signal is significantly shorter and it penetrates physical barriers less effectively. If you are in close proximity to your smartphone, choosing this band will provide the best results.
Why can't some devices see the 5 GHz network?
Not all network adapters in older laptops or tablets support the 802.11ac or ax standard, which operates at 5 GHz. If your device doesn't find the network after switching, reset the setting to 2.4 GHz or check the client's network module specifications.
When switching bands, active connections with clients will be lost. Devices will need to rescan for the network and log in again, as the radio module's technical parameters are changing. Warn users in advance if you're sharing internet with a group.
Setting up traffic limits and managing connections
Shell functionality MIUI allows you to flexibly control your mobile data usage. The access point management section includes a tool Traffic limit, which automatically disables Wi-Fi hotspots when a specified data limit is reached. This is an indispensable option for plans with limited gigabytes.
You can set a daily or monthly limit and choose the action to take when it's reached: a simple notification or complete shutdown. The system also keeps statistics showing how much traffic has been used since the last reset. This helps you keep your finances under control.
The list of connected devices displays all active clients and their MAC addresses. Here, you can manually disconnect any user, even if they know the password. Regularly checking this list allows you to quickly identify "unwanted guests" who may have connected to your network.
| Setting parameter | Recommended value | Impact on work |
|---|---|---|
| Traffic limit | 80% of the package | Leaves a buffer for urgent messages |
| Shutdown timeout | 10 minutes | Saves battery power when idle |
| Max. number of devices | 4-5 pieces | Guarantees stable speed for everyone |
| Frequency range | 5 GHz (near) | Maximum data transfer rate |
Network visibility issues and how to solve them
Sometimes users encounter a situation where other devices simply can't detect the access point they've created. Often, the problem lies in the frequency range: if a phone broadcasts on 5 GHz, but a laptop only supports 2.4 GHz, detection will be impossible. Switching to the standard frequency range solves the problem in 90% of cases.
Another common cause is regional restrictions. Some smartphone models designed for certain markets may have restrictions on the use of specific Wi-Fi channels. If you're in another country, try changing the region in your phone's settings or resetting your network settings.
⚠️ Note: Settings interfaces and menu item layouts may be changed by developers in new firmware versions. If you don't find the item described, search your phone's settings by entering the keyword "hotspot" or "AP."
It's also worth checking if power saving mode is enabled, as it can aggressively limit the radio module's performance. In "Ultra Power Saving" mode, Wi-Fi hotspot sharing is often blocked by the system to extend battery life. Disable this mode to ensure full hotspot functionality.
The Impact of Power Saving Mode on Wi-Fi Stability
Smartphones Redmi are known for their battery optimization algorithms, which can sometimes be overly zealous. When power saving mode is enabled, the system may reduce Wi-Fi transmit power or force the hotspot to turn off when the screen is off. This leads to constant connection drops.
For stable internet distribution, it is recommended to switch your phone to the mode "Performance" Or at least "Balanced." You can find exceptions for network-related system processes in the battery settings, but it's easier to temporarily disable aggressive power saving while using tethering.
There is also a hidden setting in the engineering menu or via ADB that allows you to prevent Wi-Fi from turning off when the screen is off, but using standard tools MIUI This is controlled by a timeout. Set the timeout to "Unlimited" or the maximum available time if you need constant connectivity.
Security: Encrypting and Hiding the SSID
The security of transmitted data should be a priority, especially when using open public networks or when working with confidential information. Encryption protocol WPA3-Personal is the most modern and secure, but it is not supported by all client devices. If you are having problems connecting older devices, please return to WPA2.
Function Hide SSID Makes your network invisible to general scanning. To connect, the user must manually enter the network name, character by character. This creates an additional barrier to accidental connections, although it's not a panacea for professional hackers.
Changing your password regularly is another effective security measure. Use password generators or complex combinations that are difficult to brute-force. Avoid simple sequences like "12345678" or your date of birth, as they can be cracked in seconds.
Frequently Asked Questions (FAQ)
Why does my phone battery drain quickly when the hotspot is turned on?
Modem mode uses the radio module at full power to continuously receive and transmit data, which consumes significant battery life. Additionally, the processor processes network packets, which also generates heat and consumes power. It is recommended to keep the device charged.
Is it possible to share Wi-Fi if Wi-Fi is already connected to the phone?
Most modern models Xiaomi Supports the Wi-Fi Repeater feature, which allows you to receive and broadcast internet via Wi-Fi. However, this feature is not available on all firmware versions and may require activation through special menus or ADB commands.
How to increase internet distribution speed?
To increase speed, make sure you're using the 5 GHz band, are in an area with a strong 4G/5G signal, and limit the number of connected devices. Also, check that no background downloads are running on your smartphone.
What to do if the laptop connects, but the Internet doesn’t work?
Check that data is enabled on your phone. Try forgetting the network on the client device and reconnecting. Resetting the network settings (APN) on your mobile device or switching the network mode from 5G to 4G/LTE may also help.