Modern smartphones Xiaomi Redmi Mobile phones have long ceased to be mere calling devices, becoming full-fledged digital control centers. One of the most popular features, especially in the absence of wired internet or paid roaming, is the ability to turn the device into a mobile router. This allows you to instantly share internet access with your friends' laptops, tablets, and gadgets using your mobile data.
The process of activating modem mode in the shell MIUI or new HyperOS It's implemented quite simply, but many users overlook important nuances that affect connection speed and data security. An incorrectly selected frequency band or a weak password can cause slow page loading or allow unauthorized access to your network.
In this article, we'll walk you through all the steps of setting up a hotspot, from basic activation to fine-tuning hidden settings. You'll learn how to extend battery life when actively sharing and what settings can help prevent your device from overheating. This guide will be a comprehensive resource for smartphone owners. Redmi any series.
Basic hotspot activation via the notification shade
The fastest way to start internet tethering is to use the quick access panel. To do this, simply swipe down from the top of the screen to open the notification shade. In the array of icons, find the item named Access point or Wi-Fi hotspot.
If you don't see the icon you need in the first row, try swiping left or tapping the edit button (usually a pencil or gear icon) to add the widget to the home screen. Once activated, the icon will light up, indicating the network is online and ready to connect.
However, this method has a significant drawback: it doesn't allow you to immediately change the network name or set a strong password, leaving the default, often insecure, values. Initial setup or changing security settings still requires accessing the deep system settings menu.
Important: Before activating, make sure that data service is enabled on your tariff plan; otherwise, connected devices will not be able to access the Internet, even if the access point is working correctly.
⚠️ Note: Activating a hotspot via the notification shade may automatically turn on Bluetooth tethering. If you don't need to transfer files or use the internet via Bluetooth on other devices, disable this option manually in settings to save battery life.
Advanced Wi-Fi network settings
To have full control over the network being created, you need to go to the menu Settings → Wi-Fi HotspotThis is where the key parameters that determine compatibility with other devices and the level of security for your traffic are hidden. The first thing to pay attention to is the network name (SSID).
The standard name usually contains the phone model, for example, Redmi Note 12, which immediately reveals your device type to potential attackers. It's recommended to change the name to something neutral that doesn't contain personal information or device model information.
Particular attention should be paid to the choice of security protocol. In modern smartphones Xiaomi by default it is often WPA3-Personal, which provides the highest level of protection. However, if you plan to connect older laptops or budget devices manufactured more than 7-8 years ago, they may simply not see your network.
- 🔒 WPA3-Personal: Maximum protection, but there may be compatibility issues with older devices.
- 🔐 WPA2-Personal: The gold standard that balances security and device compatibility.
- ⚠️ Without password (Open): This is strongly discouraged as anyone within range will be able to use your traffic.
The passphrase should be complex enough, yet easy to enter on devices without a physical keyboard. The optimal length is 8 to 32 characters, including uppercase and lowercase letters and numbers.
Choosing a Frequency Band: 2.4 GHz vs. 5 GHz
One critical parameter that is often overlooked is frequency band selection. In the access point settings menu Xiaomi offers a switch between the 2.4 GHz and 5 GHz bands. Understanding the difference between them will help you avoid problems with signal speed and range.
Range 5 GHz Provides significantly higher data transfer speeds and is less susceptible to interference from neighboring routers and household appliances. It's the ideal choice if you plan to watch high-definition videos on your tablet or play online games on your laptop while in close proximity to your phone.
However, the 5 GHz frequency has a significant drawback: low penetration. The signal penetrates walls less effectively and fades quickly with distance. If your laptop is in another room or around a corner, the connection may be unstable.
Range 2.4 GHz It's more versatile. It offers better coverage and penetration, but the speed will be lower, and the airwaves are often cluttered with signals from microwaves and Bluetooth devices.
| Parameter | 2.4 GHz | 5 GHz |
|---|---|---|
| Transfer speed | Average (up to 150 Mbps) | High (up to 400+ Mbps) |
| Range of action | High | Low |
| Penetration of walls | Good | Bad |
| Compatibility | Full (all devices) | Only modern gadgets |
⚠️ Please note: Mobile operator interfaces and tariff plan terms are subject to change. Before actively sharing large amounts of data, please check your plan's terms in your operator account to avoid blocking or additional charges.
Managing connected devices and limits
Shell functionality MIUI allows you to not only create a network, but also strictly control who connects to it. The access point menu has a section Connected devices, which displays a list of all active clients in real time.
Here you can see the device name and its MAC address. If you spot an unfamiliar user, you can immediately block them by clicking the corresponding option. Furthermore, the system allows you to set a connection limit.
Setting a user limit is a great way to prevent bandwidth congestion. For example, by setting a limit of three devices, you can ensure that a fourth device, even with the password, won't be able to connect to your network.
☑️ Network security check
Also worth mentioning is the feature Hide networkWhen enabled, your device will stop broadcasting the network name. To connect, other users will have to manually enter the SSID in their device's Wi-Fi settings.
This doesn't provide 100% protection from professionals, but it effectively hides your access point from nosy neighbors and automatic network scanners, reducing the number of unauthorized connection attempts.
Energy saving and modem optimization
Hotspot mode is one of the most power-hungry processes on a smartphone. The Wi-Fi module works hard, constantly transmitting and receiving data packets, which quickly drains the battery and heats up the device.
In the settings Xiaomi a useful function is provided Turn off the access point automaticallyYou can set a timer that will turn off tethering if no one connects to the network for 5 or 10 minutes. This will save battery life if you forget to turn off tethering.
It's also worth considering that when actively distributing internet traffic, the phone's processor operates in enhanced mode, especially if data encryption is enabled. This can lead to noticeable heating of the device in the camera area.
To minimize heat buildup, we recommend removing the protective case during long sharing sessions and avoid placing the phone on soft surfaces (like a sofa or bed), which can impair heat dissipation. It's best to place the device on a hard, cool surface with the screen facing up.
Hidden settings via the engineering menu
In some versions of MIUI through the engineering menu (##6484##) You can change the Wi-Fi transmitter power. However, this requires caution: too much power will accelerate battery discharge and heat up, while too little will reduce the range. It is recommended to use the default settings.
Troubleshooting connection issues and errors
Even with proper configuration, users may encounter devices that cannot see the network or obtain an IP address. Most often, the problem stems from a software glitch in the Wi-Fi module or a frequency conflict.
The first step in case of any problems is to reboot your smartphone. This clears the network service cache and resets frozen processes. If this doesn't help, try changing the broadcast channel in the access point settings (if this option is available in your software version) or switching the frequency band from 5 GHz to 2.4 GHz.
Another common cause is throttling by your mobile operator. Some providers block or throttle your speed when they detect tethering (TTL filtering). In such cases, standard solutions won't solve the problem.
- 🔄 Reset network settings: Go to
Settings → Connection and Sharing → Reset Wi-Fi, Mobile Network, and BluetoothThis will delete saved passwords, but often solves driver problems. - 📶 Balance check: Make sure there are funds in your account and that your traffic package has not been exhausted.
- 📱 Software update: Check for system updates in
Settings → About phone, as Xiaomi regularly releases patches that fix network bugs.
Why does my laptop see the network, but it says "No Internet access"?
Most often, this means that the phone has assigned an IP address but is unable to transmit data from the operator. Check that the internet is working on the smartphone itself (by disabling Wi-Fi). If websites load on the phone, try manually entering Google's DNS addresses (8.8.8.8) on your laptop.
Is it possible to share Wi-Fi if the phone is connected to a Wi-Fi router?
On most modern smartphones Xiaomi With new-generation Wi-Fi modules, the "Wi-Fi repeater" feature (distributing internet received via Wi-Fi) is not available natively. The phone can either receive Wi-Fi or distribute mobile data. However, there are models with dual Wi-Fi modules that support this feature, but in the mass-market Redmi segment, this feature is usually blocked by software.
How can I find out who exactly has connected to my network?
Go to Settings → Wi-Fi hotspot → Connected devicesA list of all active gadgets will be displayed there. If you see a device with an unfamiliar name (for example, "Unknown Device" or a different brand name), change your password immediately.
Does Wi-Fi sharing affect the speed of mobile internet on the phone itself?
Yes, it does. The bandwidth is shared between all connected clients. If one laptop starts downloading a large file, the speed on the smartphone itself and other devices can drop significantly. Furthermore, using modem mode increases ping (latency), which is critical for online gaming.