How to boost the signal of the Internet on Xiaomi: effective methods

The problem of unstable connection or weak signal level is familiar to many owners of Android devices, and Xiaomi, Redmi or Poco smartphones are no exception. Owners often face a situation where in some rooms the Internet flies, and in others, literally behind the wall, the pages stop loading, and the indicator shows only one or two sticks, this can be due to the peculiarities of the operator, and software failures in the shell of MIUI or HyperOS.

Fortunately, the company's engineers have provided many tools to allow users to diagnose and correct the situation themselves. Signal amplification is not always a myth or buying expensive equipment, often with a competent software setup. In this article, we will discuss proven ways to help you return stable speed and confident reception in areas of poor coverage.

Diagnostics of the current state of the network

Before we get to the radical measures, we need to understand what exactly prevents high-quality communication. In Xiaomi smartphones, there is a hidden engineering menu that provides much more information than the standard status bar, which allows you to see the real signal level in dBm (decibel-milliwatts), which is an objective indicator of communication quality.

You need to open the standard Phone app and enter a special code. Once you enter the combination, you will open a testing interface where you can switch between tabs, tracking parameters in real time. Pay attention to the Signal Strength value: the closer it is to zero, the better (for example, -70 dBm is better than -110 dBm).

If you see values below -115 dBm, the phone is in a very low reception zone, and software methods can only give a temporary effect, in which case it is worth checking whether the thick case does not overlap the antenna modules located around the perimeter of the case.

⚠️ Warning: Don't change the values in the engineering menu unless you know exactly what they're responsible for. Reset only if you're sure the operator's frequency settings are off.

Basic settings of the mobile network

The easiest but often overlooked step is to check network priorities: In an environment where 4G coverage is unstable, a phone may be constantly trying to catch weak LTE instead of switching to stable 3G. Forced mode switching can make a big difference in traffic or in a building with thick walls.

Go to the Settings menu → SIM-Select your SIM card and find Preferred Network Type. If you're in a hot spot, try changing automatic mode to 3G (WCDMA/GSM). This will reduce the maximum speed, but will provide a stable voice channel and the work of messengers.

It’s also worth checking whether traffic saving or power saving modes are on for specific applications. Aggressive MIUI optimization can limit background activity, causing notifications to arrive with a delay, creating the illusion of poor internet.

• 📡 Switch the network type manually to the settings menu SIM-map.
• 🔋 Turn off energy saving mode for background tasks.
• 🔄 Reset network settings to factory settings.
• 📶 Check if you have chosen correctly SIM-data-card.

Working with Wi-Fi connection on Xiaomi

Wireless networking problems often lie not in the phone, but in the frequency conflict or router settings. Xiaomi smartphones support two bands: 2.4 GHz and 5 GHz. The 5 GHz range provides high speeds, but has a short range and does not pass through obstacles well.

If your router broadcasts the same network (SSID) for both bands, the phone can "cling" to the far 5 GHz when there is a powerful 2.4 GHz nearby. In the Wi-Fi settings on the phone, you can find the Wi-Fi Assistant feature. It automatically switches the device to mobile Internet if the Wi-Fi signal becomes too weak, which eliminates the hanging of downloads.

Also, you should pay attention to DNS settings. Standard provider servers can work slowly. Changing DNS to public servers from Google or Cloudflare often speeds up page response. This is done in the Settings menu → Wi-Fi → Click on your network name → DNS settings.

Owners of Mi Router or Redmi Router routers should check the settings through the Mi Home app. Sometimes changing the broadcast channel helps if neighboring networks cause interference. Use a Wi-Fi scanner to find the least loaded channel.

Use of engineering menus and hidden codes

For advanced users who want to gain full control of the radio module, an engineering menu is available, and you can access it through dial ##4636##. This is a universal code for Android that works on most Xiaomi devices.

In the menu that opens, select Phone Information. Here you will see the drop-down list of Set Preferred Network Type. The default value is that allows the phone to choose the standard itself. You can force LTE Only (4G only) mode to prevent the phone from slipping into 3G/2G, even if the LTE signal is very weak.

But be careful: in the mode LTE Only incoming calls may not be allowed if the operator does not support VoLTE technology. If the calls are lost after switching, return the setting to the original state. LTE/WCDMA/GSM (auto connect).

⚠️ Attention: Establishment of the regime "LTE Only" can cause you to be unable to accept regular voice calls if your carrier does not support VoLTE. Use this mode only to distribute the Internet.

Resetting network settings and software updates

Configuration errors accumulated over time can negatively affect the operation of communication modules. If simple switching does not help, the effective method is a complete reset of network settings. This action will not delete your personal data, photos or contacts, but will clear the stored Wi-Fi passwords and Bluetooth pairs.

Resets can be made via Settings menu → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. After the reboot, the phone will re-register in the operator’s network, having received the latest settings.

Also, don't ignore system updates. Security patches and MIUI updates often contain patches for base stations and modem drivers. Check for updates in the About Phone section.

External factors and hardware solutions

Sometimes the problem is not the software, but the physical environment: thick concrete walls, metal reinforcements, foil insulation, or even an aquarium can screen the signal. Try to approach the window or go to the balcony to check the quality of communication.

Notice the case. Metallic, magnetic or simply very thick siline cases can significantly weaken the signal of the antennas embedded in the frame of the smartphone. Take off the case and check if the signal level changes.

If the problem is only relevant at home, the solution may be to buy a Wi-Fi router with VoWiFi (Voice over Wi-Fi) technology or install a repeater (signal amplifier). USB-modem.

Frequently Asked Questions (FAQ)