The modern smartphone has long ceased to be just a means of communication, becoming a fully-fledged control center for your digital environment. When your desktop router fails or you're outside the coverage area of ββyour home network, Xiaomi Offers built-in tools for instantly setting up a hotspot. This feature allows you to turn your mobile internet into a fully-fledged Wi-Fi network that can be connected to a laptop, tablet, or even smart devices.
The process of activating modem mode on devices with a shell MIUI or new HyperOS The developers have simplified the process as much as possible. You don't need third-party apps or complex technical knowledge to share data with other devices. However, there are some nuances regarding connection security and frequency band settings, which affect data transfer speeds.
In this article, we'll detail the steps for various firmware versions and explore hidden settings that can optimize access point performance. You'll learn how to protect your network from unauthorized connections and what to do if a device can't detect the hotspot you've created. Understanding these mechanisms will help you avoid problems at critical moments.
Quickly launch a hotspot from the notification shade
The easiest way to enable tethering is to use the quick access panel. To do this, simply unlock the screen and swipe down from the top of the notification panel. In the list of icons, look for the item usually labeled "Tethering" or "Personal Hotspot." If you don't see it on the first page, swipe down again or tap the edit menu button.
After clicking the corresponding icon, the system will immediately begin the wireless network creation process. The activation status will be displayed as a highlighted button, and a special icon resembling a chain or radio waves will appear in the status bar. This means your Xiaomi is already broadcasting a signal, and other devices can start searching for the network.
However, this method activates default settings that may not be optimal for all use cases. For example, the default password may be simple, or the 2.4 GHz band may be selected, which is more heavily used by neighboring routers. This option is ideal for initial connections, but for long-term operation, it requires more in-depth configuration.
Configuring network settings in the settings menu
To manage all parameters of the distributed Internet, you need to go to the system menu. Open Settings and find the "Connection and Sharing" section (in older versions of MIUI, this may be called "Additional Features"). This is where you'll find all the controls for your smartphone's network interfaces.
Within this section, select "Wi-Fi Hotspot." This will open a control panel where you can change the network name (SSID), set a strong password, and select the encryption type. It is recommended to always use a secure protocol. WPA2-Personal or WPA3, as older standards are vulnerable to hacking by attackers.
Pay special attention to setting the frequency band. In the "Access Point Settings" menu, select "AP Band." You can choose between 2.4 GHz and 5 GHz. The former provides better compatibility with older devices and a longer range, while the latter guarantees higher speeds but a shorter range.
β οΈ Attention: When choosing the 5 GHz band, make sure the receiving device (laptop or tablet) supports this standard. Older devices may simply not detect the network, even if it's active.
The "Hide Device" option is also available in this menu. If you enable this switch, your access point will no longer appear in the list of available networks on other devices. To connect, you'll need to manually enter the network name in the client's Wi-Fi settings.
Using a USB modem and Bluetooth panel
Wireless connection is not always the best solution, especially if stability is important or you need to save battery power. Interface Android Allows you to use a wired connection via a USB cable. To do this, connect your phone to your computer using a cable, go to the hotspot menu, and turn on the "USB tethering" switch.
The computer automatically detects the new network connection, just as if you were connecting an Ethernet cable. The advantage of this method is that the phone simultaneously receives power from the PC port, offsetting the energy consumed by data transfer. The connection speed in this case is limited only by your mobile internet speed and the cable's bandwidth.
An alternative option is to use a Bluetooth tethering pad. This method is significantly slower than Wi-Fi but consumes minimal power. To activate it, you must first pair your phone and the receiving device via Bluetooth, then enable the "Bluetooth tethering" option in the hotspot menu.
- πΆ USB modem: Maximum stability and speed, no delays, phone charging.
- π Bluetooth: Minimal power consumption, suitable for background tasks, low speed.
- π‘ Wi-Fi: Versatility, ability to connect multiple devices, high power consumption.
The choice of interface depends on your current tasks. If you need to download a large file on your laptop, a cable is best. If you just need to check email on your tablet, a Bluetooth connection will suffice.
Traffic limits and managing connected devices
Mobile data is often limited by your data plan, so it's important to monitor your usage. Xiaomi's hotspot settings include a built-in data meter. Go to the "Data Limit" menu to set the limit. Once the limit is reached, data tethering will automatically stop, saving you from unexpected charges.
The "Connected Devices" feature lets you see a list of all devices currently using your internet connection. MAC addresses and device names are displayed. If you spot an unfamiliar user, you can block their access with one click or change the network password.
You can also set a sleep timer. You can set the hotspot to turn off automatically if no one connects to it for 1, 5, or 10 minutes. This is a useful feature for preventing battery drain if you forget to turn off tethering.
βοΈ Traffic control
Frequency range comparison and compatibility
Understanding the differences between frequencies is critical for comfortable operation. Many users are unaware that choosing the wrong band can result in older devices simply not finding the network. Below is a table comparing the key characteristics of the two standards.
| Characteristic | 2.4 GHz | 5 GHz |
|---|---|---|
| Transfer speed | Up to 150-300 Mbps | Up to 866 Mbps and higher |
| Range | High (up to 30 m) | Medium (up to 10-15 m) |
| Permeability of walls | Good | Low |
| Workload | High (a lot of interference) | Low (pure ether) |
If you're in an apartment building where the airwaves are clogged with signals from neighboring routers, switching to 5 GHz can significantly improve speed. However, if the receiving device is in another room behind a thick wall, it's better to stick with 2.4 GHz.
β οΈ Attention: Some telecom operators may block or limit internet speeds when sharing data (TTL filters). The operator sees that the traffic is coming from a computer, not a smartphone, and may apply restrictions.
What is TTL and how does it affect distribution?
TTL (Time To Live) is a data packet parameter that decreases by one as it passes through each router. When you're distributing internet, your phone acts as a router, and the TTL decreases. The carrier sees the changed value and understands that internet is being distributed. Changing the TTL on the receiving device can help bypass the limitation, but this requires root access or complex Windows registry settings.
Troubleshooting connection issues and errors
Sometimes users encounter a situation where the access point is enabled, but other devices cannot connect or receive the error message "Unable to obtain an IP address." Most often, the issue stems from incompatible security standards or a full client list.
Try changing the encryption type. If you're using WPA3, switch to WPA2. Resetting the network settings on the receiving device also helps. In rare cases, a full reboot of the smartphone sharing the internet connection may be necessary to reset frozen network services.
Another common cause is power saving mode being enabled. Aggressive optimization MIUI It can turn off Wi-Fi to save battery if the phone's screen is off. Add the Settings or Hotspot app to battery exceptions to prevent the system from interrupting the connection.
- π Reboot: Toggle airplane mode on and off to restart the radios.
- π Password: Make sure the client device does not have an old password for your network saved.
- πΆ Range: Try forcing the 2.4GHz band for maximum compatibility.
If all else fails, check to see if your IMEI is blocked by your carrier or if your credit is full. Sometimes, data service blocking also affects tethering.
Optimizing power consumption when operating in modem mode
Sharing Wi-Fi is one of the most power-intensive processes on a smartphone. The active radio module and processor quickly heat up the case and drain the battery. To minimize losses, avoid keeping your phone in a case while sharing, ensuring adequate heat dissipation.
Reduce screen brightness or turn off the display completely, as it's not needed for the hotspot. Also, close background apps that may consume bandwidth and processor resources, creating additional strain on the system.
If you're planning a long internet connection, such as using your laptop at a cafe, it's best to connect your phone to an external power bank or wall outlet. Constantly running the battery at its limits can shorten its lifespan due to heat buildup.
β οΈ Attention: Interfaces and menu item names may vary slightly depending on the version of MIUI or HyperOS. If you don't find the item described, use the settings search (the magnifying glass at the top of the screen) and enter the keyword "Hotpoint" or "Modem."
Why does the phone get so hot when distributing?
When an access point is operating, the radio module simultaneously receives (from the base station) and transmits (to clients). This places a double load on the antenna path and processor, which inevitably leads to heating. This is a normal physical phenomenon, but critical overheating (>45-50 degrees Celsius) can lead to throttling (a decrease in speed).
Is it possible to share Wi-Fi if my phone has a SIM card without a data plan?
No, internet tethering requires an active data plan. If your SIM card doesn't have a data plan or runs out of data, the hotspot will activate, but the internet will not work on connected devices.
How many devices can connect to Xiaomi at the same time?
Modern Xiaomi smartphones typically support up to 10 simultaneous connections. However, the actual number depends on the processor load and Android version. With a large number of clients, the speed on each device will decrease.
Does Wi-Fi sharing affect the speed of mobile internet on the phone itself?
Yes, it does. The connection bandwidth is shared between all connected clients. If you're downloading a file on your laptop, the page loading speed on your smartphone will also drop, as the 4G/5G bandwidth is limited.
How to hide your network name from strangers?
In the access point settings, find the "Hide device" (or "Hide SSID") option. Once enabled, the network will disappear from the general list, and to connect, you'll need to manually enter the network name in the Wi-Fi settings on the client device.