How to improve the signal of the Internet on Xiaomi: from settings to hardware solutions

The weak Internet signal on Xiaomi smartphones is one of the most common problems faced by users of Redmi, POCO and Mi lines. Access point is lost, speed drops to unacceptable values, and in some rooms Wi-Fi does not catch at all. The reasons can lie in the settings of the phone itself, and in the peculiarities of the router or mobile network. In this article, we will analyze all possible ways to improve the signal, from basic settings to advanced technical solutions.

It's important to understand that there's no one-size-fits-all recipe: each method's effectiveness depends on the situation, for example, in a city apartment with a lot of neighbors and their routers, changing the Wi-Fi channel will help, and in a country house with thick walls, you may need to install a repeater or a Mesh system, and we structured the materials so that you can try simple solutions first, and then move on to more complex ones.

Special attention will be paid to the unique features of MIUI firmware, which are often ignored even by experienced users, for example, hidden setting up Wi-Fi Assistant or forced inclusion of 4G+ in the engineering menu can give a speed increase of up to 30% without buying additional equipment.

1. Checking the current status of the signal

Before you start settings, you need to objectively assess the situation. Many users only focus on the number of sticks in the status bar, but this is an inaccurate indicator.

• 📊 Built-in tools MIUI: Go to Settings. → Wi-Fi, tap on the name of your network and look at the signal level in dBm. -30 before -60 dBm If the indicator is worse -70 dBm is a weak signal.
• 📱 Third-party applications: WiFi Analyzer (for Android) will show the load of channels, and NetMaster – speed and stability of the connection in real time.
• 📡 Speed test: run Speedtest or FAST.com in different parts of the room. Compare the results to your provider's rate.

Note the speed fluctuations: if the speeds jump from 10 to 100 Mbps in the same place, the problem may be router settings or interference from other devices. If the speed is consistently low, it may be the fault of the provider or hardware limitations of the phone.

2. Optimizing Wi-Fi settings on Xiaomi

MIUI firmware offers several hidden features that can significantly improve connection stability, starting with the basic settings:

1. Turn off automatic connection to weak networks: Go to Settings → Wi-Fi → Additional → Autoconnect to open networks and deactivate the option. This will prevent connection to unreliable points with a bad signal.
2. Enable Wi-Fi Assistant (hidden feature): Activated via the engineering menu: type in the phone dial ##546368##, then select Wi-Fi → Wi-Fi Assistant → Enable. This feature automatically switches the phone to the best available network.
3. Set Network Priority: In the same engineering menu (#4636###), go to Wi-Fi information → Wi-Fi Priority and manually prioritize your home network.

If your Xiaomi supports Wi-Fi 6 (Mi 10/11, Redmi K40/50, POCO F3/4), make sure the router also works in this standard. Otherwise, force 802.11ac mode on the router's settings for compatibility.

3. Set up the router for maximum compatibility

Often the problem isn't with the phone, but with the router settings that aren't right, and here are the key parameters to check:

For the Xiaomi Mi Router (e.g. Mi Router 4A/4C/AX3600) models, additionally:

• 🔄 Update your firmware through the Mi WiFi app (Update tab).
• 🛡️ Turn off Band Steering (automatic switch between 2.4 and 5 GHz) if the phone is unstable at 5 GHz.
• 📶 Enable Beamforming (directed signal amplification) in Settings → Wi-Fi → Additionally.

⚠️ Warning: If after changing the settings of the router, the phone stopped connecting to Wi-Fi, reset the network settings on the smartphone: → Wi-Fi → [your network] → Remove, then connect again.

Improvement of mobile Internet signal (4G/5G)

If you are having problems with mobile internet, not Wi-Fi, check out the following:

A. APN settings:

Make sure that the access point parameters meet the requirements of your operator. For most Russian providers (MTS, Beeline, MegaFon, Tele2), the standard settings are:

Name: Internet


APN: internet.mts.com (or similar for your operator)




Proxy: not installed




Port: not installed




User name: not established




Password: not set




Type of authentication: PAP or CHAP




Type APN: default,supl

B. Compulsory 4G/5G Entry:

In some regions, the smartphone can automatically switch to 3G or 2G, which slows down the speed.

1. Enter the dialer ##4636##.
2. Go to Phone Information → Network settings.
3. Select LTE only (or NR/LTE for 5G).

B. Verification of band support:

Not all Xiaomi models work equally well with Russian frequencies. For example, the POCO X3 Pro does not support the Band 20 (800 MHz), which is actively used by Tele2 in rural areas.

5. Hardware solutions: from antennas to Mesh systems

If the software methods didn't work, it's time to look at hardware improvements, and you can divide them into three categories:

• 📶 Signal amplifiers: For mobile Internet, an external antenna will suit 4G/5G (for example, Poynting XPOL-1), It's a phone adapter that connects to the phone. It's a Wi-Fi adapter. 2) booster 5-9 dBi.
• 🔄 Mesh systems: Ideal for large apartments or houses. Popular models: Xiaomi Mi Mesh Router AX3000 or TP-Link Deco X20. They automatically switch devices between nodes, providing a stable signal.
• 🛠️ Phone modding (for advanced): Some users replace a regular Wi-Fi antenna with a more powerful one (such as from the Samsung Galaxy), but this requires disassembling the phone and risks voiding the warranty.

⚠️ Note: Before buying a signal amplifier, check that it is compatible with your operator. Some models (for example, Yota) work only in certain ranges and may not be useful for MTS or Beeline.

6.Problems with specific Xiaomi models

Some Xiaomi smartphones have unique signal problems associated with the hardware platform or firmware.

Redmi Note 8/9/10:

These models are known for Qualcomm's weak WCN3990 Wi-Fi module, which loses connection when it's under high load.

Turn off Wi-Fi Direct in the settings.

Install a custom core (e.g., FrancoKernel) to improve drivers.

POCO F1/F2/F3:

5G issues on these devices are often due to the X55 modem not working properly.

- Enable the SA-mode for 5G via the engineering menu (#4636## → Phone information → Set preferred network type → NR/LTE).

Update the radio modem via Fastboot.

Mi 11 Ultra/12 Pro:

Flagships suffer from overheating of the modem during prolonged operation in the 5G network.

- Limit the maximum connection speed in the settings SIM-map.

Use a heat sink case (e.g. Black Shark Cooling Backplate).

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If your Xiaomi suddenly lost network after the MIUI update, try rolling back to the previous firmware version via Fastboot or resetting network settings to Settings → System → Reset settings → Network Reset.

7. Alternative ways: from VPN to DNS modification

Sometimes there's a signal, but the speed is artificially limited by the provider or the network settings.

• 🌍 Shift. DNS: Replace the standard ones DNS provider-on 1.1.1.1 (Cloudflare or 8.8.8.8 (Google. This will speed up site openings and reduce delays. How to change: Settings → Wi-Fi → [your network] → Change the network → Additionally. → Settings IP → Static → DNS1/2.
• 🔒 Use of the VPN: Some operators troll (limit) speed for certain services (for example, YouTube or Torrent). VPN (For example, ProtonVPN or Warp from Cloudflare will help you get around this.
• 📡 Modem mode: If the phone catches poorly 4G, But you have another gadget with a good signal (tablet, second phone), turn on modem modem and distribute the Internet to Xiaomi.

To check the trolling, use the service DSLReports - it shows not only the speed, but also the level of buffering that the provider issues.

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Changing DNS and using a VPN will not increase the physical speed of the connection, but can eliminate artificial restrictions on the part of the provider or improve traffic routing.

FAQ: Frequent questions about signal improvement on Xiaomi