Why do users want to turn off Wi-Fi calls on Xiaomi and when do they need to?
VoWiFi (or Wi-Fi Calling) on Xiaomi smartphones allows you to make calls over the Internet, even if the mobile network is not available. At first glance, this is convenient, but in practice, many people face problems from accidental communication interruptions to increased battery consumption. For example, owners of the Redmi Note 12 Pro + and Xiaomi 13 Ultra complain that after activating VoWiFi, the phone begins to overheat during conversations, and in roaming, not only mobile, but also Wi-Fi minutes are charged.
Another common situation is that you're connected to a corporate Wi-Fi with tight constraints, and VoWiFi just doesn't work, but it's constantly trying to connect, using up a charge, or you're traveling abroad, where the operator blocks Wi-Fi calls, but the phone is trying to initialize them, causing them to crash, and in such cases, turning off the function becomes not a whim, but a necessity.
It is important to understand that VoWiFi and VoLTE (4G calls) are different technologies, although they are often confused. Disabling one does not always affect the other. In this article, we will discuss all the current ways to deactivate Wi-Fi calls on Xiaomi, including hidden MIUI settings and solutions for cases where standard methods do not work.
Method 1: Standard shutdown through settings SIM-map
The most obvious method is to use built-in options. MIUI. It is suitable for most models, including POCO X5 Pro, Redmi 12 and flagship Xiaomi 14. Instructions are relevant for firmware MIUI 14 and newer:
- Open the Settings app (cog icon).
- Go to section. SIM-maps and mobile networks.
- Choose. SIM-The card you want to disable VoWiFi for (if there are two).
- Slip on Wi-Fi calls (or VoWiFi in some versions).
- Move the slider to the off position.
If the Wi-Fi call is not on the menu, your carrier is not supporting this function, or it is locked at the firmware level, in which case try the following methods:
Make sure you have the latest version of MIUI.
Check the balance. SIM-cards (sometimes operators block settings at zero)
Disable VPN – it can interfere with access to operator settings
Restart your phone before changing your settings-->
Method 2: Disconnect via the Engineering Menu (for advanced users)
If the standard method didn’t work, you can use the engineering menu (also known as MTK Engineer Mode or Qualcomm Service Menu) which is suitable for devices running MediaTek chips (such as Redmi Note 11) and Qualcomm Snapdragon (such as Xiaomi 12T).
Instructions for MediaTek:
- Open the Phone app.
- Enter the combination: ##4636###.
- Select Phone Information (or Phone Information).
- Scroll down to the Wi-Fi Calling block.
- Click Disable (or Disable)
For Qualcomm:
- Enter the phone app: ##86583##.
- Go to VoLTE Settings → Wi-Fi Calling.
- Choose Disable for both of you. SIM-map.
⚠️ Note: On some models (e.g, POCO F4 GT) The engineering menu may be missing or require root rights. If nothing happens after you enter the code, your firmware has blocked access.
Method 3: Disconnection through USSD-operator
Some mobile operators (for example, MTS, Beeline, Tele2) allow you to manage VoWiFi via the Internet. USSD-This is convenient if the phone settings do not respond. Below are the current commands for Russian operators (2026):
| Operator. | Command to disable VoWiFi | Note |
|---|---|---|
| MTS | *111*777# | After the set, wait for SMS with confirmation |
| Beeline | *110*180# | You may need to restart your phone. |
| MegaFon | *105*00# | It doesn't work at all rates. |
| Tele2. | *155*1# | Disables both VoLTE and VoWiFi |
If VoWiFi is still active after sending a command, contact operator support - it is possible that the feature is tied to your tariff and requires manual shutdown in your personal account.
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Before use USSD-Commands to keep important settings SIM-map (APN, In rare cases, they may be reset.
Method 4: Using ADB to Forced Shutdown
For users who have VoWiFi activated automatically after restarting, ADB (Android Debug Bridge) will help, which requires a computer and enabled USB debugging, and is suitable for all Xiaomi models, including the Black Shark 5 and Redmi K60.
Step-by-step:
- Turn on Developer Mode: Go to Settings → About Phone and tap the MIUI version 7 times.
- Return to Settings → Additional → For developers and activate Debugging over USB.
- Connect your phone to your PC, install ADB Tools, and open the command line in the adb.exe folder.
- Execute commands in order: adb shell settings put global wifi_calling_enabled 0 settings put global wifi_calling_mode 0
- Reboot the phone.
⚠️ Attention: After update MIUI setting ADB To avoid this, create a script to automatically apply commands when you connect to a PC.
Method 5: Reset network settings (last resort)
If none of these things work, you have to reset your network settings, and it's a radical solution that brings all the connectivity (Wi-Fi, mobile, Bluetooth) back to the factory, and the data on your phone doesn't get hurt, but you have to re-enter your Wi-Fi passwords and set up your APNs.
How to perform the reset:
- Open the Settings. → SIM-maps and mobile networks.
- Slip on the three dots in the top right corner and select Network Settings Reset.
- Confirm the action (you may need to enter a pattern lock).
Once reset, VoWiFi will be disabled, but stored Wi-Fi networks and VoLTE settings will also disappear. To restore VoLTE, go to Settings. SIM-map → Volte calls and turn it on manually.
What to do if the mobile Internet is lost after reset?
Frequent problems and their solutions
Even after VoWiFi is turned off, Xiaomi users sometimes face unexpected challenges, and here are the most common ones and ways to fix them:
- 🔄 VoWiFi is turned on after restarting → Check for updates MIUI or use the method with ADB (Method 4).
- 📵 No sound when calling after VoWiFi shutdown → Switch to mode Only. 3G in the network settings and back on 4G.
- 🔌 Fast battery discharge → Clear the phone app cache in Settings → Annexes.
- 🚫 Operator blocks shutdown → Try changing the rate or contact support to request to disable the service at the level SIM-map.
If your problem is not on the list, check the FAQ section below for answers to rare questions.
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Before contacting the Xiaomi service center about problems with VoWiFi, be sure to test the phone with another one. SIM-It's often not the smartphone that's to blame, it's the operator's settings.