How to increase the speed of Wi-Fi on the phone Xiaomi Redmi: from settings to iron

Slow Wi-Fi on Xiaomi Redmi is a problem that every second user faces. 10-30% From what the provider claims, especially in multi-family buildings with a lot of networks, in this article we will discuss the causes of brakes and practical ways to accelerate, from basic settings to deep optimization of firmware and hardware solutions.

It's important to understand that Wi-Fi speeds are not just dependent on the smartphone, but also on the router, the interference, the number of devices connected, and even the location of the furniture. We're going to focus on what you can change on the phone side without buying new hardware. 10/11/12, Redmi 9/10/13C and POCO X3/X4, It is also suitable for other devices on MIUI 12-14.

1. Diagnostics problem: why does Wi-Fi slow down?

Before optimizing, you need to identify a bottleneck. Brakes can occur due to:

• 📶 Overloaded router channel – in urban environments up to 20 networks can broadcast on a single channel 2.4 GHz.
• 📱 Firmware restrictions - in MIUI By default, energy-saving functions are enabled that throttle background activity.
• 🔋 Battery Saving Mode – It reduces the performance of the Wi-Fi module to 50%.
• 🛠️ Hardware limitations – Redmi budget models (e.g. Redmi) 9A) Only supports Wi-Fi 4 (802.11n) 150 Mbps maximum.

To determine the cause, do a test:

1. Connect your phone to the router via cable (via OTG-Adapter, or check the speed on another device (laptop, tablet) if the speed is high, the problem is the smartphone.
2. Launch the WiFi Analyzer app (or Settings) → Wi-Fi → Analysis of networks in MIUI) See how many networks are running on your channel.
3. Check the speed through Speedtest or FAST.com in different rooms – if the difference is greater than 30%, interference or weak signal is to blame.

2. Optimize Wi-Fi settings on Xiaomi Redmi

Let’s start with software methods – they do not require root rights and work on any model.

Activation of maximum performance mode

By default. MIUI Limits Wi-Fi speeds to save charge, to remove the restrictions:

1. Go to Settings → Battery and Performance → Battery Modes.
2. Select “Performance” (or “No Limits” in older versions).
3. Enable the option of “Maximum performance” (if any).

On some firmware (MIUI 13+) You need to additionally disable the “Adaptive battery” in Settings → Battery → Battery settings.

2.2 Forced use of 5 GHz

The 5GHz range is less crowded and supports speeds of up to 866 Mbps (versus 150 Mbps at 2.4 GHz).

1. Open the Settings. → Wi-Fi.
2. Click on your network name and select “Change the network”.
3. Enable the option of “5 GHz range” (or “5 GHz priority”).
4. If you don’t have an option, install the WiFi Band Selector app from the Play Market.

⚠️ Attention: 5 GHz range is shorter, and if the router is far away, the speed may drop due to a weak signal, in which case it is better to leave automatic selection or use the Mesh system.

Disable the Smart Switch function

Smart switching function Wi-Fi/mobile data in MIUI It automatically switches the phone to the mobile Internet if the Wi-Fi signal is weak, which is good for stability, but often leads to packet loss and speed "shanging:

1. Go to Settings. → SIM-maps and mobile networks → Smart switching.
2. Turn off the "Automatic Switch" slider.

3. Set up router for maximum speed

If the problem is not the phone, you need to optimize the router, even budget models (for example, Xiaomi Mi Router). 4A or TP-Link Archer C6) You can “stop” with the right settings.

3.1 Selection of the optimal Wi-Fi channel

In urban settings, the 2.4 GHz channels are overloaded to find free:

1. Install the WiFi Analyzer (or NetSpot for PC) app on your phone.
2. See which channels are least loaded (usually 1, 6 or 11 for 2.4 GHz).
3. Go to the router control panel (usually at 192.168.0.1 or 192.168.1.1).
4. In the section "Wi-Fi» → «Wireless Network Settings: Manually Set the Channel.

For 5 GHz, choose channels 36-48 or 149-165 — They are less susceptible to interference from home appliances.

Change in channel width

Channel width affects speed and stability.

The setting is in the router panel in the section "Wi-Fi» → «Additional settings».

Inclusion of the standard 802.11ac (Wi-Fi 5)

If your router supports Wi-Fi 5 (802.11ac), But it's compatible with older devices, and it's going to be limited to a full-fledged device. 802.11ac:

1. Go to the router's settings.
2. Find the section "Wireless mode» → «Wi-Fi standard».
3. Choose «802.11a/n/ac» for 5 GHz «802.11n» for 2.4 GHz.
4. Save the settings and restart the router.

⚠️ Note: If after changing the standard, some devices (such as older smartphones or smart light bulbs) stop connecting, return the settings back or set up a guest network with support for outdated standards.

4. Advanced settings MIUI speed up Wi-Fi

If the basic methods didn't work, it's time to dig deeper. MIUI There are hidden settings that can be changed through the engineering menu or ADB-team.

Disable the speed limit in the engineering menu

Some Xiaomi Redmi models artificially limit Wi-Fi speeds to save energy.

1. Open the Phone app and enter the code: ##4636###
2. Go to the tab "Information about Wi-Fi".
3. Look at the current connection speed in the line "Link Speed." If it is below 150 Mbps at 2.4 GHz or 400 Mbps at 5 GHz, there is a limit.
4. Go back to the main menu and select “Wi-Fi settings”.
5. Turn off the option of Wi-Fi power save mode (if any).

If there is no paragraph, the restriction is removed by ADB (see next section).

4.2. ADB-Teams to Optimize Wi-Fi

For experienced users: using Android Debug Bridge (ADB) You can turn off the hidden constraints:

1. Install ADB Tools on your PC.
2. Turn on "Debugging by" USB» In Settings → The phone. → Version. MIUI (Press 7 times, then return to Settings → Additionally. → For developers).
3. Connect your phone to your PC and execute the commands: adb shell su settings put global wifi_supplicant_scan_interval 120 settings put global wifi_idle_ms 5000 settings put global wifi_suspend_optimizations_enabled 0
4. Reboot the phone.

These teams:

• Reduce the interval of scanning networks (wifi_supplicant_scan_interval).
• Increase the activity time of the Wi-Fi module (wifi_idle_ms).
• Turn off energy optimization (wifi_suspend_optimizations_enabled).

⚠️ Attention: Misuse of the right ADB This can cause phone malfunctions. Before executing commands, back up through Settings. → Additionally. → Backup and reset.

5. Hardware methods of accelerating Wi-Fi

If the software is exhausted, it remains to improve the hardware, which is true for older Redmi models (for example, Redmi). 4X Redmi Note 5, where the Wi-Fi module is physically weak.

5.1 Replacement of Wi-Fi antenna

Budget smartphones often have low-cost antennas with low gain, and replacing them with better ones (such as the Samsung Galaxy or iPhone) can increase the speed of the device. 20-40%. For that:

1. Disassemble the phone (you need a plastic transmitter and a screwdriver). T3-T5).
2. Disconnect the old antenna (usually glued to the back cover or motherboard).
3. Connect a new antenna (it is important to observe polarity!).
4. Get your phone and check your speed.

The cost of the antenna is from 200 to 800 rubles.

• 📱 For the Redmi Note 8/9: antenna IPX-U.FL (articular WF-ANT-001).
• 📱 For Redmi. 10/11: antenna MHF4 (articular ANT-WF-005).

5.2 Use of an external Wi-Fi adapter

If you don’t want to take the phone apart, you can connect the external USB Wi-Fi adapter via OTG-This is true for models with support. USB Host Mode (Redmi Note 10 Pro, POCO X3 Pro and newer).

Recommended adapters:

• 🔌 TP-Link TL-WN725N (Wi-Fi 4, up to 150 Mbps – budget option.
• 🔌 ASUS USB-AC53 Nano (Wi-Fi 5, up to 867 Mbps) – for maximum speed.

Instructions for connection:

1. Buy it. OTG-Adapter (if not included in the package).
2. Connect the adapter to the phone.
3. Install the app USB WiFi Tether from Play Market.
4. In the application settings, select the connected adapter.

⚠️ Warning: External adapters drain the battery (up to 1% per minute when you are actively transferring data) and use them only when you are connected to a charger.

6. Alternative methods: if nothing helps

If all methods have been tried, but the speed remains low, consider radical solutions.

Resetting network settings

Sometimes Wi-Fi problems are caused by setting conflicts or corrupted configuration files.

1. Go to Settings. → SIM-maps and mobile networks → Resetting network settings.
2. Click “Reset settings” and confirm the action.
3. After restarting, connect to Wi-Fi again.

This method removes all stored networks and VPN-Profiles but does not affect personal data.

6.2. Flashing on custom firmware

Stock-stock MIUI Often contains core-level restrictions that cannot be removed without root rights. The alternative is to install custom firmware (e.g. LineageOS or Pixel Experience).

Advantages:

• 🚀 There are no artificial speed limits for Wi-Fi.
• 🔄 More stable connection to 5 GHz networks.
• 🔋 Better energy efficiency optimization.

Disadvantages:

• ⚠️ Loss of warranty (if the phone is under warranty).
• ⚠️ Risk of "bricking" when incorrectly installed.
• ⚠️ Certain functions MIUI (For example, the Game Turbo may not work.

Installation instructions:

1. Unlock the bootloader through the Mi Unlock Tool.
2. Install TWRP Recovery for your model.
3. Download the firmware from the XDA Developers website.
4. Sweat through TWRP (instructions are in the firmware theme).

💡

Before you run the firmware, check the compatibility of the phone model with the firmware you select. For example, the firmware for the Redmi Note 10 Pro will not work for the Redmi Note 10, which will cause the device to fail.

6.3 Purchase of a repeater or Mesh system

If the problem is a weak signal (for example, the router is in another room), it will help:

• 📡 Wi-Fi repeater (e.g. Xiaomi Mi Wi-Fi Repeater) 2) — It increases the signal but reduces the speed of the 30-50%.
• 🏠 Mesh system (e.g. TP-Link Deco or Xiaomi Mesh Router) AX3000) — Create a network without loss of speed.

The Mesh system is preferable because:

• Automatically switches devices between nodes.
• Supports roaming (smooth transition between points).
• It operates at 5 GHz without any loss of speed.

7. Frequent errors that slow down Wi-Fi

Many users themselves degrade speed without knowing it.

Use of outdated safety standards

Old encryption standards (WEP or WPA) They're not only unreliable, they're also slowing down the connection — WPA3 (or WPA2-AES, if WPA3 unsupported).

How to change it:

1. Go to the router panel.
2. Go to "Wireless Mode» → «Security settings».
3. Choose «WPA3-Personal» (or «WPA2-PSK» coded AES).

5.2. Bluetooth enabled and NFC

Bluetooth modules and NFC They are running at 2.4 GHz and can interfere with Wi-Fi. If you are not using these features, turn them off:

1. Open the Quick Settings panel (swipe down from the top edge of the screen).
2. Click on the Bluetooth icons and NFC, shut off.

On Redmi models with Qualcomm chip (e.g. Redmi Note) 11 Pro+) Bluetooth shutdown can increase Wi-Fi speeds 10-15% by reducing interference.

Background updates and autoboot

Apps like Google Play, Mi Video or Facebook can covertly download updates by occupying a channel to limit them:

1. Go to Settings → Applications → Application Management.
2. Select an app (e.g. Google Play Store).
3. Click on “Limit background activity”.
4. Turn off “Auto Update” in the application settings.

💡

Even if you don't use the app, it can consume traffic in the background. Check the list of active processes in Settings regularly. → Battery → Battery utilization.

FAQ: Answers to Frequent Questions