How to change the frequency range on Xiaomi devices: Wi-Fi, Bluetooth and mobile network

Changing the frequency range on Xiaomi devices can significantly improve communication quality, Internet speed or the stability of wireless accessories. Where to look for these settings, what options to choose and how not to disrupt the device. In this article, we will discuss all possible scenarios from changing the range of Wi-Fi (2.4 GHz ↔ 5 GHz) before manually adjusting mobile frequencies (4G/5G) and Bluetooth optimization for headphones and smart gadgets.

It’s important to understand that not all Xiaomi models support manual range change, for example, budget smartphones often lack the option of selecting frequencies for the mobile network, and in some regions the manufacturer blocks certain ranges due to local regulations, we will tell you how to circumvent restrictions (where possible) and what tools will help in this – from hidden menus to third-party applications.

If you want to figure out why your Redmi Note 12 isn’t catching 5G or why the Mi Band 8 is constantly losing touch with your phone, this guide will help you diagnose the problem and find a solution, starting with the most common request, which is to change your Wi-Fi range.

1. How to change the Wi-Fi range to Xiaomi (2.4 GHz) ↔ 5 GHz)

Most modern routers broadcast simultaneously on two frequencies: 2.4 GHz (long range, but lower speed) and 5 GHz (high speed, but weaker passes through walls). By default, Xiaomi connects to the network automatically, choosing the range with the best signal. However, sometimes you need to forcefully switch - for example, if 5 GHz is unstable or 2.4 GHz is overloaded with neighboring networks.

To manually select the range:

1. Open the Settings. → Wi-Fi.
2. Tap your network name and hold for 2 seconds (or press the gear next to the name).
3. In the network settings menu, find the Frequency Range (or Band in global firmware).
4. Choose 2.4 GHz only, 5 GHz only or Auto.

If there's no frequency range, then your model doesn't support manual switching.

• 🔄 Rename the network on the router: add to the name 5 GHz suffix "_5G" (for example, MyWiFi_5G), 2.4 GHz — "_2G". The phone will see them as separate networks.
• 📱 Use the WiFi Analyzer app (available on Google Play) to see which range neighboring devices are connected to and select less loaded ones.
• 🔧 Update the firmware: in new versions MIUI Sometimes you add hidden options. Check for updates to Settings. → The phone. → Updating the system.

⚠️ Note: On some models (e.g, POCO X3 Pro) if forced to choose 5 GHz, the Internet may disappear with a weak signal, in which case return the setting to the Auto or approach the router.

2. Manual range change 4G/5G (mobile)

Xiaomi 5G-enabled smartphones (such as the Xiaomi 13T or Redmi K60) automatically switch between 4G (LTE) and 5G (NR) bands depending on carrier coverage, but sometimes you need to lock in a certain range – for example, if 5G is unstable or 4G provides better speeds in your region.

To change the priority of the network:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map.
3. Tap the network type (or preferred network type).
4. Choose one of the options: 4G only (LTE) for stability; 5G/4G/3G (auto) for standard mode; 5G only if you need to force the new standard (not available on all models).

If the menu doesn't have 5G Only, your smartphone doesn't support forced selection, and you can try the engineering menu:

Enter the dialer: ##4636###


Go to "Phone Information" → "Installation of a network type"




Select the standard you want (e.g. NR/LTE/TD-SCDMA)

3. Optimization of Bluetooth frequencies for headphones and smart devices

Connectivity issues with Mi Band, Xiaomi Buds or other Bluetooth gadgets are often associated with automatic range selection.Modern devices use Bluetooth 5.0+, which supports three bands:

• 1 Mbit / s (maximum range, low speed);
• 2 Mbit / s (standard mode);
• LE Audio (low power consumption, for headphones).

Unfortunately, MIUI does not directly configure these parameters, but you can improve the connection:

Turn off battery savings for Bluetooth in Settings → Battery → Selection of apps

Remove all saved devices and reconnect

Update the firmware of headphones through the Mi Home app or Xiaomi Wear

Try connecting in another room (maybe there is interference from Wi-Fi or microwave)-->

If the Xiaomi Buds 4 Pro headphones are permanently turned off, try:

1. Reset the headphone settings (press the button on the case for 10 seconds).
2. Enable Developer Mode on your phone and activate Debugging over Bluetooth (Settings → About Phone → MIUI Version – tap 7 times, then go back to Additional → Developer Settings).
3. Install the Bluetooth Auto Connect application for automatic reconnection.

⚠️ Note: On some models (e.g. Redmi Note 11), enabling Bluetooth Debugging may cause the battery to run faster.

4. Hidden range settings: engineering menu and ADB-team

If standard methods do not help, you can use an engineering menu or ADB-This is relevant for power users, because incorrect changes can disrupt the communication modules.

Ways to access hidden settings:

• 📱 Engineering menu: enter in the dialer: ##4636## - network and battery information; ##225## - sensor calibration (sometimes affects communication stability); ##36446337## - equipment test (including antennas).
• 🖥️ ADB-Commands: Connect your phone to your PC and use: Adb shell su setprop persist.radio.force_on To return the default settings: setprop persist.radio.force_on false

On models with a Qualcomm processor (for example, Xiaomi) 12T) You can also include additional support LTE-bands:

adb shell am start -n com.qualcomm.qti.engineermode/.EngineerMode


Go to Band Selection and select the desired frequencies.

💡

Before using ADB, back up your settings in Settings → Additional → Backup and Reset. This will help restore your health if something goes wrong.

5. Regional restrictions and range unlocking

Xiaomi is adapting its devices to different markets, blocking certain frequencies, for example, smartphones for China do not support European ones. LTE-ranges, and global versions may not catch 5G If you bought a device from another region, you may have to unlock hidden ranges.

Ways to circumvent restrictions:

• 🌍 Change of the firmware region: squeak MIUI For other markets (for example, China) ROM Globally ROM). This can be done via the Mi Flash Tool, but requires an unlocked bootloader.
• 📡 Use of applications: Network Signal Guru (requires root) allows you to manually select LTE-ranges.
• 🔓 Modem patches: on forums 4PDA or XDA Developers are laying out patches to unlock frequencies (for example, for the Redmi Note 10 Pro).

⚠️ Warning: Change of firmware region may lead to loss of warranty and unstable operation NFC Before the procedure, check the compatibility of the model on the Xiaomi website.

Frequent problems and their solutions

Even after setting the ranges correctly, users are faced with typical errors.

If none of these methods worked, try:

1. Reset network settings: Settings → System → Reset → Network settings reset.
2. Swipe the device through Fastboot (instructions are available on 4PDA).
3. Contact the service center Xiaomi – perhaps the problem in the hardware (antenna, communication module).

💡

Before resetting your network settings, write down or take a photo of all saved Wi-Fi passwords – they will be deleted!

FAQ: Answers to popular questions