How to increase the reception of Wi-Fi on the Xiaomi phone: from simple settings to hidden chips MIUI

Have you noticed that your Xiaomi is not catching Wi-Fi in some rooms, although other devices are stable? Or the signal is constantly “jumping” and download speed drops to zero? The problem of poor wireless reception on smartphones of this brand is more common than it seems — and not always the router’s fault. 80% of cases, the fault is suboptimal MIUI settings, hardware limitations of budget models or interference from neighboring networks.

In this article, we will discuss 10 Proven ways to enhance Wi-Fi on Xiaomi, Redmi and POCO — From basic settings to little-known firmware chips, you'll learn how to get your phone to catch a network where there used to be only one stick, why 5 GHz isn't always better 2.4 GHz, and what to do if the problem is hardware. All methods tested on current versions. MIUI 14/15 HyperOS (2026 year).

It is important if you have Xiaomi. 12T Pro, Redmi Note 13 Pro+ or another flagship model with Wi-Fi support 6/6E, And some of the advice is going to be redundant for you, because these devices are usually better at getting in than the public sector. 10A, POCO M5 or old Mis or A2 All recommendations are useful.

1. Check the basic Wi-Fi settings in MIUI

Before digging deeper, make sure that the system does not activate functions that artificially limit the signal. Go to Settings → Wi-Fi and check:

• 🔍 Wi-Fi Power Saving Mode: Turn it off in Settings → Connections → Wi-Fi → Additionally. → Power saving Wi-Fi: This feature reduces the module's power to save battery, but worsens reception.
• 📡 Autoconnect to open networks: turn off in Settings → Wi-Fi → Additionally. → Autoconnection: Constant surges between networks disrupt stability.
• 🔄 Automatic transition to mobile data: deactivate in Settings → SIM-maps and mobile networks → Switching to mobile data. Sometimes the phone mistakenly "considers" Wi-Fi unstable and switches to a mobile phone. 4G.

Also, pay attention to connection priority. MIUI has a hidden feature that makes the phone cling to low signal networks if they're "familiar." To reset priorities:

1. Go to Settings. → Wi-Fi.
2. Click on the three dots in the upper right corner → Additional → Network Management.
3. Remove all the saved networks (or at least those that you don’t use now).
4. Reboot your phone and connect again.

2. Optimize your router settings for Xiaomi

If you have a problem on all devices, it's the router's fault, but even if other gadgets work fine, Xiaomi can conflict with certain network parameters.

In apartment buildings, 2.4 GHz channels (especially 1, 6, 11) are often overloaded. Use the Wi-Fi Analyzer app (available on Google Play) to find the freest channel, and set it manually in the router settings.

⚠️ Note: If your router supports Wi-Fi 6 (802.11ax), But the phone is not (like Redmi). 9A), force-off AX-mode in the router settings. Otherwise, the devices will connect at a reduced speed or with cliffs.

3. Forced to turn on the 5 GHz range (if supported)

The 5 GHz range is less crowded and provides faster speeds, but it has two downsides: shorter range and poor wall penetration.If your Xiaomi supports 5 GHz (check in the model specs) but doesn't connect to it automatically, do the following:

• 📶 Rename the network: in the settings of the router give different names (SSID) for 2.4 GHz and 5 Like GHz, MyWiFi_2G and MyWiFi_5G. The phone will see them as separate networks.
• 🔗 Turn off the "smart" switch: in MIUI There's an Intelligent Wi-Fi Switch that automatically selects the range. → Wi-Fi → Additionally. → Smart switching.
• 🔄 Forced Connection: If the phone is persistently clinging to 2.4 GHz, forget the network. MyWiFi_2G And connect only to MyWiFi_5G.

A critical nuance for owners of Xiaomi with a Qualcomm processor (for example, Redmi Note 11 Pro, POCO X4 Pro): these models sometimes “lose” the 5 GHz module after updating MIUI. If the range worked before, and now it does not – reset the network settings:

Settings → System → Resetting → Resetting Wi-Fi, mobile network and Bluetooth

Go to Settings → About the phone → All the characteristics

Find the "Wi-Fi" bar - if there is 802.11ac or 802.11ax, then 5 GHz is supported

Check in Settings → Wi-Fi if the phone sees a network with 5G or 5GHz suffix

- If not, update. MIUI last-minute-->

4.Use hidden MIUI engineering settings

MIUI hides a number of parameters that can be changed through the engineering menu or USSD codes, which allow you to manually adjust the power of the Wi-Fi module, select preferred standards, and even test the antenna.

Method 1: Code for Wi-Fi Testing

Enter the following code in the Phone app:

##546368##

The Wi-Fi Test menu will open where you can:

• View the current signal power (in dBm).
• Check the speed of connection to the router.
• See what channel and standard the network is running on.

Method 2: Engineering menu (for advanced only)

Enter the code:

##4636##

Go to the Wi-Fi information tab. You can:

• 📊 See the real speed of the connection (not the one shown by the router).
• 🔧 Change your Wi-Fi settings (if your phone is purchased for another market).
• ⚡ Enable high performance mode (if available).

⚠️ Warning: Do not change the parameters in the engineering menu unless you understand their meaning! Incorrect settings can lead to loss of the network or overheating of the module. 802.11ac On a phone that does not support it, it will cause connection errors.

5. Update firmware and Wi-Fi drivers

Weak Wi-Fi signal can be caused by bugs in drivers or outdated module firmware. Xiaomi regularly releases updates fixing connection issues, but they don't always install automatically.

How to update MIUI:

1. Go to Settings → About the phone → System update.
2. Click on the three dots in the upper right corner → Download the latest version.
3. If an update is available, install it and restart the phone.

How to update the Wi-Fi driver (for advanced):

If the problem persists after the MIUI update, you may need a separate patch for the Wi-Fi module.This is true for phones on Qualcomm Snapdragon (for example, Xiaomi 11T, POCO F3). Download the latest driver version from the official Xiaomi website or the XDA Developers forum and install via Fastboot:

fastboot flash wifi [name file.img]


fastboot reboot

For models on MediaTek (for example, Redmi Note 10) drivers are updated only with firmware - there is no separate installation.

💡

If Wi-Fi is getting worse after the upgrade, roll back to the previous version of MIUI via Settings → About Phone → System Update → Three Points → Select an Service Pack. Download the old firmware from en.miui.com

6. Hardware methods of signal amplification

If the software methods didn't work, the problem could be a hardware problem: a weak antenna, poor contact, or wear on the module.

• 📱 Check the phone case: metal cases or magnetic holders (for example, to mount in the car) shield the signal.
• 🔌 Look at the antenna connector: if the phone fell or disassembled, the antenna contact could have gone away. In Xiaomi, antennas are usually located in the upper and lower parts of the case (see photo below).
• 🔧 Use an external antenna: for phones with support OTG (for example, POCO X3 Pro) you can connect a USB-Wi-Fi adapter with an external antenna (e.g., TP-Link) TL-WN725N).

How to check the antenna contact:

1. Turn off the phone and remove the back cover (if it is removable).
2. Find small gold contacts with the words WIFI or ANT.
3. Then, put your finger on it or put it on it.
4. Turn on the phone and check if the signal has improved.

⚠️ Warning: If you're not sure about your skills, don't disassemble your phone yourself, go to a service center. Damage to the antenna cable can completely disable Wi-Fi. Be especially careful with models with glass back panels (Xiaomi 13, Redmi). K50), where the risk of damage during disassembly is higher.

💡

If the phone stopped catching Wi-Fi after falling or getting moisture, the problem is almost certainly hardware, in which case only replacing the Wi-Fi module will help (cost - from 1,500 to 4000 rubles depending on the model).

7. Alternative methods: from repeater to change MAC-address

If all of the above didn’t work, try the non-trivial solutions:

• 📶 Wi-Fi repeater or Mesh system: If the problem is in a large house, install a signal repeater (such as Xiaomi Mi Wi-Fi Repeater 2) or a Mesh router (Xiaomi). AX3000). It’s more expensive, but more reliable than “wizarding” your phone.
• 🔄 Shift. MAC-Addresses: Some routers block devices with specific MAC. Try changing him in. MIUI: Settings → The phone. → All characteristics → Press 5 times on "Core" → Engineering menu → Wi-Fi → MAC-address
• 📱 Aircraft mode: sometimes helps the on/off cycle of the aircraft mode (Settings) → Airplane mode. This resets network settings on the fly».
• 🔋 Disabling Battery Optimization: Go to Settings → Annexes → Application management → Three points. → Special access → Optimize the battery and turn it off for the Wi-Fi system app.

Exotic method for older models: if you have a Xiaomi Mi 8, Mi 9 or other model with Qualcomm Snapdragon 845/855, try turning Wi-Fi Direct mode on the engineering menu.

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FAQ: Frequent questions about strengthening Wi-Fi on Xiaomi