How to completely disable VoLTE on Xiaomi: all ways to MIUI 12-14

Why you should turn off VoLTE on Xiaomi and when you really need it

Voice over technology LTE (VoLTE allows voice calls to be transmitted via 4G-But in practice, Xiaomi smartphone owners (including Redmi line) are the ones who use the network, promising clearer sound and faster connectivity, POCO Black Shark and others often face problems ranging from sudden communication interruptions to accelerated battery discharge, and in some regions, operators do not yet support VoLTE stably, and the function is activated by default in firmware. MIUI.

Disabling VoLTE may be required in several cases:

• 📵 Poor communication quality – voice is interrupted, the interlocutor is not audible, although the network indicator shows 4G.
• 🔋 Fast battery discharge - module LTE It consumes additional energy to maintain the voice channel.
• 🌍 Roaming or travel – VoLTE may not work abroad or be charged more expensive.
• 📱 Firmware conflict - after update MIUI There are glitches with outgoing challenges.

It's important to understand that turning off VoLTE doesn't affect mobile internet speed -- you'll still be using 4G for data, but voice calls will be going through traditional 2G/3G networks, which sometimes even improves connection stability. Next, we'll go through all the ways available, from standard settings to hidden engineering menus.

Method 1: Disable VoLTE via standard MIUI settings

The easiest method is to use the built-in MIUI options. It is suitable for most models Released after 2018 (including Redmi Note 10/11/12, Xiaomi 11/12/13, POCO F3/F4/F5, etc.).

Step instructions:

1. Open the Settings app (the gear icon on the home screen).
2. Go to SIM cards and mobile networks (or Mobile network in older versions).
3. Choose yours. SIM-card (if two of them).
4. Find Call by VoLTE or VoLTE (sometimes hidden under Additional Settings).
5. Move the slider to the off position.

If the VoLTE item is not on the menu, it means:

• 📱 Your model doesn’t support technology (relevant for budget devices until 2019).
• 🔄 The operator has blocked the possibility of disconnection (for example, MTS or Beeline in some regions).
• 🛠️ The function is hidden in the engineering menu (see Method 3).

Method 2: Use of the USSD-commands

Some operators allow you to control VoLTE through special USSD-This method works independently of the firmware and does not require root rights. However, not all operators support such commands, and their list may change.

Try the following combinations (enter as a phone number in the Phone app):

##4636## → Testing → Phone Information → Install preferred network type (select "LTE/WCDMA/GSM auto")
#86583## → Disable VoLTE (works on some firmware for Redmi Note 8/9)


#4636## → Service menu → Disable VoLTE (for POCO X3 and Xiaomi Mi 10)

If nothing happens after the command is entered:

• 🚫 Operator blocked USSD-Menu (relevant for Tele2 and virtual operators).
• 🔒 Firmware MIUI modified (e.g. global version for Europe).
• 📵 SIM-The card does not support management through USSD (check with the operator).

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If USSD-When you try to type them in through the Engineering Mode app from Google Play, it often reveals hidden options.

Method 3: Engineering menus – hidden settings for power users

For advanced users willing to risk the stability of communication, there is a way to disable VoLTE through an engineering menu that works on 90% of Xiaomi devices, but requires caution – incorrect settings can lead to network loss.

Step-by-step:

1. Open the phone app and enter the combination: ##4636##
2. In the menu that opens, select Phone Information (or Phone Information).
3. Scroll down to Set preferred network type.
4. Select LTE/WCDMA/GSM auto (PR) or GSM only (if you want to disable 4G completely).
5. Click Turn off VoLTE provisioning (if any).
6. Reboot the phone.

Attention, you can also use the engineering menu to:

• 🔧 Turn on/off VoWiFi (wi-fi calls).
• 📡 Change the frequency band LTE (roamingly).
• 🔋 View the statistics of battery consumption by the communication module.

Method 4: Disable VoLTE via ADB (for advanced)

If the standard methods didn’t work and the engineering menu isn’t available, the Android Debug Bridge (ADB) option is a one-stop option, but it requires a computer and minimal technical skills, and is suitable for all Xiaomi models, including the Black Shark and MIUI devices for POCO.

What you need:

• 🖥️ Computer with installed Xiaomi and ADB-tools drivers.
• 📱 Included Debugging by USB on the phone (Settings) → The phone. → Version. MIUI — Press 7 times, then return to Additional → For developers).
• 🔌 Cable USB (preferably original).

Instructions:

1. Connect the phone to your computer and confirm the debugging permission.
2. Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with adb.exe.
3. Enter the command to check the connection: adb devices must appear serial number of the device.
4. Execute the VoLTE shutdown command: adb shell settings put global volte_enabled 0
5. To turn off VoWiFi (if necessary): adb shell settings put global wifi_calling_enabled 0
6. Reboot the phone.

⚠️ Attention, teams ADB If the network is lost after the reboot, return the values to the place: adb shell settings put global settings volte_enabled 1 adb shell settings put global wifi_calling_enabled 1

Problems after VoLTE shutdown and how to fix them

In most cases, VoLTE shutdowns go away without consequences, but sometimes users experience side effects. Let's look at typical situations and how to fix them.

If you notice that the quality of communication has deteriorated after the VoLTE shutdown, try:

• 🔄 Switch to another. SIM-card (if the phone is two-sim phone).
• 📡 Manually select the operator in the settings (SIM cards) → Choice of network → Manual scanning).
• 🔧 Reset network settings (Settings) → System system → Resetting settings → Resetting Wi-Fi, Mobile Network and Bluetooth).

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If the phone stopped catching the network after the VoLTE shutdown, check if the 4G Only mode is activated in the settings, in which case the device ignores the 2G/3G that is needed for voice calls.

VoLTE vs VoWiFi: What’s the difference and whether to turn off both

Along with VoLTE, Xiaomi often features VoWiFi (wi-fi calls), which are similar but work in different ways:

• 📶 VoLTE – calls through mobile network 4G/LTE.
• 📶 VoWiFi – calls via Wi-Fi connection (useful with weak cellular network coverage).

Turning off VoWiFi makes sense if:

• 🏠 You have unstable Wi-Fi and calls are interrupted.
• 🔒 You are connected to public networks (risk of interception of traffic).
• 📱 The phone warms up during a conversation on Wi-Fi.

To turn off VoWiFi:

1. Go to Settings → SIM cards and mobile networks.
2. Choose. SIM-map → Additional settings.
3. Find VoWiFi or Wi-Fi Calls and deactivate it.

⚠️ Attention! Some operators (e.g. MegaFon) link VoLTE and VoWiFi to one profile. Disabling one feature can automatically deactivate the other!

FAQ: Frequent questions about disabling VoLTE on Xiaomi