How to Improve Wi-Fi Signal on Xiaomi Phone: A Complete Guide to Proven Methods

Have you noticed that your Xiaomi suddenly got worse at catching home Wi-Fi, even though it was no problem before? Or the signal is constantly floating — that is, it disappears, forcing you to switch to mobile data? This problem is familiar to many owners of smartphones of the brand, and it is not always associated with a malfunction of the device. Most often the fault is the settings of MIUI, interference from neighboring networks or outdated router software.

In this article, we will look at 10 proven ways to improve Wi-Fi signal on Xiaomi, Redmi and POCO phones, from basic settings to advanced technical solutions. You will learn how to optimize the Wi-Fi module in firmware, what router parameters affect connection stability, and when to think about replacing equipment. All methods are tested on current models (2022-2026) and do not require root rights.

1. Check basic Wi-Fi settings on Xiaomi

Before you go into deep settings, make sure that the problem isn't in the obvious. Start by diagnosing the current state of the network:

• 📶 Signal Level: Open the notification panel – if the Wi-Fi indicator shows 1-2 divisions, the problem may be in the distance from the router or obstacles (walls, furniture).
• 🔄 Auto Connection: Go to Settings → Wi-Fi and check if the “Connect Automatically” option is disabled for your network.
• 🔒 Password: Make sure you’re connected to the correct network (sometimes phones cling to nearby open points with weak signal).

If the signal indicator flashes or periodically disappears, try to forget the network and connect again:

1. Open the Settings. → Wi-Fi.
2. Slip on the name of your network and select “Forget”.
3. Reconnect by entering the password.

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Some Xiaomi models (such as the Redmi Note 12 Pro+) reset power saving settings for Wi-Fi after the MIUI update. Check the Battery and Performance section if the signal disappears in standby mode.

2. Optimize MIUI settings for stable Wi-Fi

MIUI firmware has hidden settings that can limit the operation of the Wi-Fi module in order to save charge.

• ⚡ Energy Saving Mode: Go to Settings → Battery and productivity → Battery mode and select Performance (disables aggressive background restriction).
• 📴 Background Limitation for Applications: In the same section, open “Background Limitation” and make sure that the “Limit” mode is not enabled for frequently used applications (messengers, browser».
• 🔄 Autoswitch to Mobile Data: In Settings → SIM-maps and mobile networks → Switch the network to disable the “Automatic Switch” option if it interferes with the.

Pay special attention to the developer settings (activated by taps by build number in Settings → About phone):

• 🔍 Turn on Wi-Fi Debugging (helps with diagnosis).
• 📡 Turn off “Aggressive Wi-Fi switching to mobile data” (if any).
• 🔋 In the Network section, set the “While Sleeping Wi-Fi Policy” to “Always».

3. Set up the router for maximum coverage

Half of the time, Xiaomi’s weak Wi-Fi signal isn’t due to the phone, but to the router’s incorrect settings.

To change these settings:

1. Open the router’s web interface (usually at 192.168.0.1 or 192.168.1.1).
2. Go to the section "Wireless" (Wireless).
3. Apply the recommended values and save the settings.

⚠️ Note: If your router supports Wi-Fi 6 (802.11ax), But Xiaomi's phone is released before 2020, so turning on this standard could cause connection breakdowns. 802.11ac.

Hardware methods of signal amplification

If the software settings didn't work, it's time to consider the physical ways to improve coverage.

• 📍 Move the router: Place it in the center of the apartment, raise it to a height of 1-1.5 m (on a closet or shelf). Avoid enclosed spaces (cabins, niches).
• 🛡️ Remove sources of interference: Microwaves, wireless phones (DECT), Bluetooth speakers and even aquariums can weaken the signal.
• 📡 Use Repeater: Devices like Xiaomi Mi Wi-Fi Repeater 2 or TP-Link RE605X They are signaling in the “dead zones».
• 🔧 Replace router antennas: On some models (e.g, ASUS RT-AX88U) You can install antennas with amplification of 5-9 dBi.

Critical: On Xiaomi phones with metal body (like Mi 11 Ultra or Redmi K50 Gaming), the Wi-Fi signal can be shielded if you hold the device in your hand.

Keep the microwave away from the router|

Turn off the DECT| wireless phones

Move Bluetooth speakers 2+ meters away from the router |

Check if the router is near mirrors or an aquarium

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5. Update firmware and reset network settings

Outdated software is a common cause of Wi-Fi problems, and manufacturers routinely release patches to fix bugs in communication modules.

1. Update MIUI: Go to Settings → About Phone → System Update. If an update is available, install it and restart the phone.
2. Update your router firmware: Go to the router’s web interface (usually 192.168.0.1). Find the Firmware Update section and install the latest version.
3. Reset network settings on Xiaomi: Open Settings → Memory → Reset settings → Reset Wi-Fi, mobile network and Bluetooth. Confirm action. Attention: this will delete all saved networks!

⚠️ Note: On some Xiaomi models (e.g, POCO F4 GT) After resetting network settings, it may be necessary to reactivate SIM-Check in advance if you have any cards. PUK-code.

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If the Wi-Fi problem persists after the MIUI update, check the firmware reviews on forums (like 4PDA or XDA Developers).This may be a known bug and the manufacturer is already working on a fix.

6. Advanced Methods: Changing the Region and MTU

These methods are suitable for experienced users who are ready for experimentation, and they can significantly improve the stability of the connection, but they require caution.

Changes in Wi-Fi region (routed devices only)

Some countries have limits on Wi-Fi transmission capacity (e.g., the EU has lower Wi-Fi capacity than the US), and if your Xiaomi is rooted, you can change the region:

su


setprop wifi.country US

Once rebooted, the phone will use American power settings.Risk: This could violate local radio frequency laws!

MTU setup

The Maximum Transmission Unit (MTU) is the maximum size of a data packet. The wrong value can cause connection breaks. The optimal MTU for most networks is 1472 or 1500.

1. Install the Termux app from Google Play.
2. Enter the command: ping -M do -s 1472 8.8.8.8 If the ping passes without fragmentation, the MTU is suitable.
3. To apply permanently, you will need to root or ADB: adb shell settings put global wifi_mtu_size 1472

7. Diagnostics of hardware problems

If none of these methods worked, there might be a problem with the iron.

• 🔍 Test on another device: Connect another phone or laptop to the same network. If the signal is stable, your Xiaomi is a problem.
• 📱 Wi-Fi antenna check: Carefully press the top of the phone (where the antenna is located). If the signal improves / deteriorates, a contact break is possible.
• 🔧 Diagnostics in the service center: On Xiaomi models 12T, Redmi Note 11 Pro+ and others with a metal body often departs the antenna plume.

Typical hardware faults:

⚠️ Note: On Xiaomi phones with IP53 (Splash protection) ingress of moisture into the antenna connector can cause contacts to corrosion. If the phone has been in water, minor Wi-Fi problems can manifest in months!

8.Alternative solutions: Mesh systems and Powerline

If all attempts to improve the signal on Xiaomi have failed, consider alternative technologies:

• 🌐 Mesh systems: Devices like Xiaomi Mi Mesh Router AX3000 TP-Link Deco creates a single network without “switching” when moving around the house.
• ⚡ Powerline adapters: Transmit the Internet via electrical wiring (e.g. TP-Link) AV1000). It is suitable if the router and phone are in different rooms.
• 📶 4G/5G router: If the problem is in the provider, a mobile router (e.g. Xiaomi Mi Router) 4G) It can be a backup source of the internet.

Advantages of Mesh-systems:

• Automatic switching between nodes without breaks.
• A single network name (SSID) in the entire apartment.
• Supports Wi-Fi 6 and 160 MHz channels for maximum speed.

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Mesh systems are ideal for homes with 100+ m2 or thick concrete walls, and are more expensive than conventional routers, but eliminate the need to manually switch between networks.

FAQ: Frequent questions about Wi-Fi on Xiaomi