Modern smartphones of the series Poco from the company Xiaomi have powerful hardware that allows you to use the device not only for games, but also as a full-fledged mobile routerWhen your landline internet connection is down or you're traveling for business, data sharing becomes critical. Properly setting up a hotspot will ensure a stable connection for your laptop, tablet, or other phone without any loss of speed.
The process of activating modem mode in the shell MIUI or HyperOS While the setup is extremely simplified, hidden settings can significantly improve signal quality. Many users simply use the default settings, unaware of the ability to select a frequency band or set a data limit. Understanding these nuances will help you avoid common mistakes and ensure the security of your data in public places.
In this article, we'll cover every setup step in detail, from basic setup to advanced security settings. You'll learn how to change the network name, set a secure password, and select the optimal broadcast frequency for maximum coverage. We'll also cover frequently asked questions and troubleshooting steps if devices can't see the network you've created.
Basic hotspot activation via settings
The easiest way to start sharing your internet is to use the standard system settings menu. To do this, unlock your device's screen. Poco and find the icon SettingsIn the list that opens, select the section responsible for connections, which in different firmware versions may be called "Connection and Sharing" or simply "Wi-Fi Hotspot."
After navigating to the desired section, you'll see a switch that activates tethering mode. The system may warn you that the feature will work even if the screen is off, which is convenient for saving power but requires monitoring the battery charge. Immediately after activation, a distinctive icon will appear next to the signal indicator, indicating that the network has begun broadcasting.
It's important to check your security settings immediately, as the default password may be too simple or missing. Click on your network name or the "Access Point Settings" button to access the detailed menu. This is where you can set SSID (network name) and the encryption method, which must be WPA2-Personal or WPA3 to protect against unauthorized access.
Choosing a Frequency Band: 2.4 GHz vs. 5 GHz
One of the key features of modern smartphones Xiaomi Support for two frequency bands for wireless networking is crucial. Choosing between them directly impacts data transfer speed and signal range. By default, the system often selects the 2.4 GHz band for maximum compatibility with older devices, but this isn't always optimal.
Range 2.4 GHz It has better penetration through walls and ceilings, but it's heavily congested in apartment buildings. Neighbors' routers, microwave ovens, and Bluetooth headsets create interference, reducing actual speed. If you're in an office or densely populated area, this range may be unstable when connecting multiple devices.
Technical differences between ranges
The 2.4 GHz band has 13 channels, of which only 1, 6, and 11 completely non-overlapping. The 5 GHz band offers up to 23 non-overlapping channels, which virtually eliminates mutual interference in high-density network environments.
In turn, the frequency 5 GHz Provides significantly higher data transfer rates, but has a shorter range and is less effective at penetrating obstacles. This is an ideal choice for watching 4K video or playing online games on a laptop in the same room as your phone. You can switch the band in the access point settings menu by selecting the appropriate option from the "AP Band" list.
Setting up security and restricting connections
When using your smartphone as a router, personal information security is paramount. An open network allows any attacker within range to intercept your traffic. Therefore, using a strong password is essential. In the access point settings Poco Allows you to set passwords up to 32 characters long, using letters and numbers.
The "Manage Connected Devices" feature gives you complete control over who uses your internet. This menu displays the MAC addresses of all devices connected to the network. You can block unwanted users at any time by simply tapping their device and selecting the appropriate action. This is especially useful in public places.
| Parameter | Recommended value | Impact on work |
|---|---|---|
| Encryption type | WPA2-PSK or WPA3 |
Protects data from interception |
| Range | 5 GHz (for speed) | Reduces interference |
| Max clients | 3-5 devices | Prevents overheating and discharge |
| Time-out | 10 minutes | Automatically turns off Wi-Fi when idle |
This section also allows you to configure the limit on connected devices. Although the phone can technically handle up to 10 clients, for stable operation, it's recommended to limit the number to 3-5. Exceeding this limit will put a heavy load on the processor and communication module, causing the device to overheat and the battery to drain quickly.
Battery saving and power management
Hotspot mode is one of the most power-hungry processes in a smartphone. The Wi-Fi module operates at maximum power, constantly transmitting and receiving data packets, which leads to intense energy consumption. For owners Poco You should be prepared for the battery charge to drain at a rate of 15-20% per hour.
To minimize the impact, we recommend using the "Access Point Timeout" feature. It allows you to configure automatic disabling of the hotspot if no one is connected to the network or no traffic is being transmitted for a specified period of time (e.g., 5 or 10 minutes). This prevents you from forgetting to turn off the hotspot and arriving home with a dead phone.
☑️ Energy consumption optimization
If you plan to use your smartphone in router mode for extended periods, it's best to connect it to an external power source. However, keep in mind that simultaneously charging and actively transferring data generates heat. In hot weather or direct sunlight, this can lead to throttling (reduced performance) or temporary shutdown of the security feature.
⚠️ Caution: When using your phone as a router for an extended period, remove the case for better heat dissipation. Overheating the battery reduces its lifespan and can cause swelling.
Solving common connection problems
Sometimes users encounter a situation where the hotspot is enabled, but other devices don't see it or can't connect. This is often due to incompatible encryption standards or frequency bands. If a laptop from 2010 doesn't see the network, try forcing the band to 2.4 GHz in your phone's settings.
Another common issue is the "Unable to obtain IP address" error. This could indicate an address conflict or a problem with Android's network services. In such cases, resetting your network settings can help. Go to the Settings menu, find "Reset settings," and select "Reset Wi-Fi, mobile data, and Bluetooth." This won't delete your personal files, but it will restore your network settings to factory defaults.
Hidden diagnostic commands
You can check the signal strength in the engineering menu (not available on all firmware versions). Enter ##4636##* in the phone app and go to the Wi-Fi information section. There you can see the RSSI level and connection speed in real time.
If the issue persists, make sure airplane mode or background app data restrictions aren't enabled on your phone. Sometimes antivirus software or firewalls can block incoming connections. Check the list of installed security apps and make sure they aren't blocking the system hotspot.
Using a USB modem as an alternative
In situations where wireless sharing is impossible or unstable, connecting via a USB cable is an excellent solution. This method is called USB tethering and has a number of advantages: it provides a more stable connection, does not drain the phone's battery (the device even charges from the computer) and eliminates the risk of signal interception over the air.
To activate, connect Poco Connect the cable to your computer, then go to the hotspot settings and select "USB tethering." The computer will automatically detect the new network connection. Data transfer speed in this mode is limited only by your mobile internet speed and the cable's bandwidth.
It's worth noting that for a USB modem to work, your computer must have standard Android drivers installed, which are typically built into modern Windows and macOS operating systems automatically. If your computer doesn't respond to the connection, try replacing the cable with the original one or one marked "data transfer," as some cables are designed for charging only.
Why doesn't my laptop see my phone's hotspot?
The most common issue is the frequency band. If your phone broadcasts 5 GHz but your laptop only supports 2.4 GHz, the network won't appear in the list. Switch the band in your phone's settings. Another possible cause is a hidden SSID; check if "Hide device" is checked.
Is it possible to share Wi-Fi if the phone is connected to Wi-Fi?
Yes, modern models Xiaomi Poco Supports Wi-Fi repeater functionality (distributing received Wi-Fi). However, the speed will be limited by the incoming connection speed, and latency (ping) may increase. In the access point settings, select "Wi-Fi" as the traffic source instead of "Mobile Internet."
Does the phone get very hot when distributing?
Yes, this is a normal physical phenomenon. The communication module is operating at its maximum capacity. To reduce the temperature, reduce screen brightness, close heavy apps, and, if possible, remove any thick case. Using 5 GHz heats the module more than 2.4 GHz.