The modern smartphone has long ceased to be simply a means of communication, becoming a fully-fledged mobile office and entertainment center. Situations where it is necessary to urgently share network access with another device arise everywhere: in a cafe, in a park, while visiting someone, or while on a business trip. Device owners Xiaomi, Redmi And POCO People often wonder how to make the most of their built-in modem for distributing traffic without losing speed or signal quality.
Wi-Fi technology allows you to create local wireless networks with high throughput, making it ideal for transferring large amounts of data. Unlike Bluetooth, which is too slow for web surfing, or a USB cable, which physically tethers devices, a wireless access point offers complete freedom of movement. However, setting up this process on the shell MIUI or new HyperOS has its own nuances that must be taken into account for stable operation.
In this guide, we'll walk you through the entire process of turning your smartphone into a router. We'll cover security, choosing the right frequency, and troubleshooting common issues users encounter. Understanding these principles will allow you to not only enable the feature, but also optimize it for your specific usage conditions.
How MIUI's modem mode works
Internet sharing function on smartphones Xiaomi Technically called a "Wi-Fi hotspot," this feature switches your phone's built-in radio to uplink mode, broadcasting a signal that other devices can pick up. It's important to understand that at this point, Wi-Fi module operates to receive from a base station (3G/4G/5G) and simultaneously transmit a signal to client devices.
System Android In conjunction with the manufacturer's shell, it acts as a router. It assigns IP addresses from an internal pool, typically starting with 192.168.43.x, to connected devices and forwards requests to the global network. This process requires significant processor and radio resources, which inevitably leads to increased power consumption.
It is worth noting that modern processors Snapdragon And MediaTek, used in telephones Xiaomi, powerful enough to handle on-the-fly traffic encryption without noticeable lag. However, if you plan to connect more than 5-7 devices simultaneously, the system load will increase exponentially, which can lead to overheating.
Technical limitations of simultaneous connections
The standard MIUI firmware has a limit on the number of simultaneous connections, typically 10 devices. Exceeding this limit may result in the initial connection being lost or new devices being denied access entirely.
Step-by-step activation of the access point
The process of enabling Internet distribution on devices Xiaomi The interface is standardized, but menu item names may vary slightly depending on the shell version. First, you need to access the Network Connections Control Center. This can be done in two main ways: through the notification shade or through the main settings menu.
The first and fastest method is to use the "shutter." Swipe down from the top of the screen to open the quick access panel. Find the icon called "Hot Spot" (sometimes it's hidden in the second menu page; swipe left). Tapping the icon immediately activates the mode, but won't allow you to change the settings without going into a deeper menu.
A more reliable method is to use system settings. This gives you complete control over your network settings. You need to:
- π± Open the Settings app from your home screen.
- π‘ Go to the "Connect and Sharing" section (or "Other wireless network features" in older versions).
- π₯ Click on "Wi-Fi hotspot".
- β Activate the switch at the top of the screen.
Once activated, a corresponding icon, typically depicting an antenna or a chain of links, will appear in the status bar. Your device is now ready to receive connections. Remember that for the internet to work on the connected devices, the mobile data connection on the hotspot phone must also be active.
βοΈ Check before switching on
Configuring security settings and network name
Security is a critical aspect when sharing the internet. By default, the system MIUI suggests using an encryption protocol WPA2 PSK, which is a good standard for protecting against unauthorized access. However, ignoring password settings or using weak combinations can lead to the leakage of your personal data.
To change the network name (SSID) and password, go to the "Access Point Settings" menu. Here you will see the "Network Name (SSID)" field, which by default contains your phone model, for example, Xiaomi 13 ProIt is recommended to change this name to something neutral so as not to advertise the device model and its owner.
The password must be sufficiently complex and contain mixed-case letters and numbers. The system allows you to select the encryption type. In new versions Android And HyperOS support appears WPA3, which provides an even higher level of protection, but older devices may not see such a network.
β οΈ Caution: Never leave your hotspot open (without a password) in public places. Attackers can intercept your traffic or use your connection for illegal activities, which could lead to legal trouble.
The "Hide Device" option is also available in this menu. If you enable this option, your phone will stop broadcasting the network name in the general list of available connections. You can only connect by manually entering the exact network name and password. This is a great way to hide your network from prying eyes.
Choosing a Frequency Band: 2.4 GHz vs. 5 GHz
One of the key settings that affects connection speed and stability is the choice of frequency band. Smartphones Xiaomi Mid-range and flagship models support both 2.4 GHz and 5 GHz bands. Understanding the differences between them will help you choose the best option for your specific situation.
The 2.4 GHz band is older and more common. Its main advantage is its high signal penetration and compatibility with virtually any device, even very old ones. However, this band is often overloaded with signals from neighboring routers, microwaves, and Bluetooth devices, which can reduce actual speed.
The 5 GHz band offers significantly higher data transfer speeds and is less susceptible to interference. It's ideal for watching 4K video or playing online games. However, it does have a significant drawback: the signal penetrates walls less effectively and has a shorter range. If you're far from the phone that's being used as a hotspot, the connection may drop.
In the access point settings on Xiaomi The "Unlimited" or "Auto" option is often selected, where the system automatically selects the best frequency. For maximum compatibility with all guest devices, it's best to manually set 2.4 GHz, and for personal work on a laptop, 5 GHz.
Traffic limits and managing connected devices
Mobile internet is rarely unlimited, so controlling data usage when sharing data becomes vital. MIUI Provides built-in tools to limit the amount of data transferred, which helps avoid unexpected charges.
In the hotspot settings menu, find the "Traffic Limit" (or "Traffic Limit") option. Here you can set a data limit, for example, 1 GB or 5 GB. Once the total transferred data reaches this threshold, internet tethering will automatically turn off. This is a reliable protection against overuse.
The system also allows you to see a list of all currently connected devices. You can monitor their activity in real time. If you spot an unknown device or notice that a friend is spending too much time online and downloading large files, you can block their access with a single click.
The table below shows approximate traffic consumption for different types of activity, which will help you set the right limits:
| Activity type | Consumption per hour (approx.) | Impact on battery |
|---|---|---|
| Social networks / Messengers | 50 - 100 MB | Low |
| Web surfing / Mail | 100 - 200 MB | Average |
| HD Video (YouTube, Netflix) | 1.5 - 3 GB | High |
| Video calls (Zoom, Skype) | 0.5 - 1 GB | High |
Connection problems and their solutions
Despite the system's robustness, users may encounter situations where the phone detects the network but fails to connect, or where the connection is present but the internet is down. Most often, the issue stems from IP address conflicts or DNS settings.
The first thing to do if errors occur is to reboot the access point. Turn the toggle switch off and on in the settings. If this doesn't help, try changing the network name, as some devices cache old security settings and can't connect with new ones.
Another common problem is the power saving mode being turned on. System Xiaomi aggressively optimizes power consumption and may "kill" internet tethering if the screen is off. Go to battery settings and select "Performance" mode or add the "Tethering" app to the exceptions list.
It's also worth checking your mobile operator's APN (Access Point Name) settings. If they're incorrect or the connection type is limited (MMS or WAP only), data sharing won't work. Resetting your APN settings to factory defaults often solves this problem.
β οΈ Note: Settings interfaces may differ depending on the MIUI version (12, 13, 14) or the transition to HyperOS. The layout of menu items may vary depending on the manufacturer's region.
The impact of Wi-Fi distribution on battery and heating
Hotspot mode is one of the most power-hungry processes on a smartphone. The simultaneous operation of the radio module for both receiving and transmitting, plus the processor's intensive data encryption, leads to rapid battery drain. A typical 5000 mAh charge can last only 3-4 hours of active sharing.
The second important aspect is heat. When operating in router mode for extended periods, the phone's body can become noticeably warm, especially if it's in a case. Overheating can lead to throttling (reduced processor performance), which in turn will reduce internet speed.
To minimize negative effects, it is recommended:
- π Remove the protective cover during long distributions for better heat dissipation.
- βοΈ Do not place the phone screen down or on soft surfaces (sofa, bed).
- π Turn off the screen of the phone that is a sharer, as it is an additional source of heat.
- β‘ If possible, connect the device to a charger, but monitor the temperature.
Using external batteries (power banks) isn't always effective in this case, as they also generate heat, and the double energy conversion (discharge and charge) leads to losses. It's best to keep the phone connected to a stationary charger in a cool place.
Why doesn't my phone share the Internet even though Wi-Fi is turned on?
A common cause is a lack of mobile data on the phone itself. Check if the internet is working in the browser on the device you're sharing from. Also, make sure you haven't reached your data limit in the hotspot settings.
Is it possible to share Wi-Fi if the phone is connected to a Wi-Fi router?
On most modern smartphones Xiaomi With Android 10 and above, the "Wi-Fi Repeater" feature is available. It allows you to receive internet via Wi-Fi and distribute it further, creating a new network. However, this feature is not available on all models and firmware versions.
How do I find out who is connected to my network?
Go to your access point settings. There will be a "Connected Devices" section or something similar. It displays the number of clients, their names, and MAC addresses. You can click on a device to block its access.
Does this drain the battery a lot?
Yes, hotspot mode drains battery significantly faster than regular use. The battery can be drained in 3-5 hours of active sharing, especially if using the 5 GHz band or connecting multiple devices.